Barriers and Facilitators to Hepatitis C Virus Treatment in Los Angeles County

preprint OA: closed
Full text JSON View at publisher
Full text 99,663 characters · extracted from preprint-html · click to expand
Barriers and Facilitators to Hepatitis C Virus Treatment in Los Angeles County | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Barriers and Facilitators to Hepatitis C Virus Treatment in Los Angeles County Shikha Handa, Nathan Sudeep, Larisa Albers, Monica Pattarroyo, and 8 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9025931/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Diagnosed but untreated chronic Hepatitis C virus (HCV) infection is a major public health problem in Los Angeles (LA) County, particularly among underserved and minority groups. This mixed-methods study (October 2024-January 2025) used de-identified programmatic data from 344 case-residents in a linkage-to-cure program and conducted thematic analysis of semi-structured interviews with ten participants (seven untreated, three treated) from the linkage-to-cure program. By integrating these quantitative and qualitative findings, the study identified community-level and individual barriers and facilitators to HCV treatment. Quantitatively, 54% of case-residents reported barriers, such as personal barriers, provider-specific barriers, insurance barriers, and inadequate access to medical care. Qualitative themes expanded on these findings, identifying homelessness, incarceration, and drug addiction as key personal barriers. Provider-related barriers included language barriers, frustration in navigating the healthcare system, long wait times to see a provider, and participants’ lack of HCV information. Insurance barriers were characterized by cost barriers and inadequate access to medical care due to a lack of transportation. Facilitators of treatment included personal motivation to seek treatment, family and community-based support systems, trust in their medical provider, adequate insurance coverage, understanding the benefits of HCV treatment, and the desire to avoid stigmatization. Eliminating HCV as a public health problem requires equitable interventions that address individual and system-level barriers. These include implementing language support services, leveraging patient navigation and care coordination services, utilizing mobile clinics for the unhoused, ensuring treatment continuity for people re-entering the community from incarceration, and removing insurance restrictions, such as prior authorization requirements. Background Chronic Hepatitis C virus (HCV) infection is an asymptomatic infectious disease that affects the liver. Globally, Hepatitis C is a major cause of liver transplants [ 1 ]. Hepatitis C is primarily a result of blood-to-blood transmission, spread by needles shared during intravenous drug usage [ 2 ]. Without treatment, HCV-infected individuals can develop liver failure, liver cancer, cirrhosis, and die prematurely [ 1 ]. HCV infection can be cured with eight to 12 weeks of daily oral treatment with the use of direct-acting antiviral medication. Hepatitis C Virus in Los Angeles County More than five million Americans, or around two percent of the American adult population, have anti-HCV antibodies, suggesting prior or current infection [ 3 ]. In Los Angeles (LA) County, California, 27,678 people were diagnosed with HCV between 2019 and 2023, but only 30% of people reported knowledge of HCV treatment [ 4 ]. Treatment completion rates remain low, with only 32% of people completing HCV treatment [ 5 ]. Notably, non-White minority groups, particularly Hispanic, Latino, or Black, had the lowest percentages of reported treatment completion [ 5 ]. Recent policy changes in Medi-Cal, such as the removal of prior authorization and prescriber restrictions for HCV treatment [ 6 ], were intended to improve access. However, significant obstacles remain, including structural issues in the healthcare system, provider-related practices, and patient-level factors such as stigma [ 7 ]. In particular, gaps remain in understanding the unique experiences of Spanish-speaking Latinx individuals, who represent a significant proportion of the untreated population. Therefore, this study aimed to identify and describe the barriers and facilitators to HCV treatment among LA County residents. Methods A mixed-methods study was conducted from October 2024 to January 2025. Participants and recruitment In collaboration with the LA County Department of Public Health (DPH), the University of Southern California (USC) established a linkage-to-cure program that uses the LA County DPH’s HCV surveillance registry [ 8 ]. As part of the linkage-to-cure program, DPH case managers contact LA County residents who have a reported HCV-RNA-positive test result. Case managers provide HCV education and assess whether residents are aware of their diagnosis, have taken steps toward treatment, and are interested in linkage-to-cure services. Interested residents are linked to HCV treatment with their primary care provider, community health clinics or a telehealth program [ 8 ]. For the purposes of this study, we extracted and analyzed de-identified programmatic data to evaluate the obstacles of program participants during the analysis period. In addition, a subset of those contacted were invited to participate in a 30- to 60-minute semi-structured qualitative interview if (1) they had a confirmed HCV-RNA-positive result, (2) were LA County residents, and (3) were 18 years old or older. Ten people met the inclusion criteria and were interviewed. Relying on Saunders et al. [ 9 ], we felt ten participants were enough to reach thematic saturation. Interviews were conducted in English and Spanish. Data collection For the quantitative analysis, anonymous data were extracted from the linkage-to-cure program between October 2024 and January 2025. Data extracted included demographics (sex, age group, race/ethnicity), health insurance type, treatment status, willingness to receive treatment, and specific reported HCV barriers to treatment. Interview guides were developed using the Transtheoretical Model and Health Belief Model, which served as a starting point to help determine the reasons for wanting to test and manage HCV [ 10 ]. Interview guides were tailored to treated and untreated HCV study participants. Questions about treatment journey and medication adherence were asked to treated study participants, but not to untreated study participants. This allowed for the development of a targeted guide that assessed knowledge, attitudes, and beliefs among treated and untreated HCV study participants. Interview guides explored study participant-level treatment barriers, including stigma, insurance challenges, and health literacy, as well as facilitators such as strategies to improve treatment linkage. Interviews were conducted on Zoom by trained interviewers, audio-recorded, transcribed verbatim, and stored securely on the USC OneDrive. Data were deidentified to keep the study participants’ information confidential. Participants could use pseudonyms to protect their privacy and received a $ 100 electronic gift card upon completion. Data analysis The quantitative analysis is presented with descriptive statistics, utilizing frequencies and percentages. Data were analyzed using SAS Software Version 9.4. For the qualitative part of the analysis, an inductive coding approach was employed to analyze interviews with untreated and treated study participants [ 11 , 12 ]. Thematic analysis was conducted through iterative coding of interview transcripts from study participant groups using Dedoose Version 9.2.22, a cloud-based qualitative analysis platform. Codes were developed collaboratively through repeated immersion in the data, with themes refined through comparative analysis across participant narratives. Ethical Considerations The study received USC Institutional Review Board (IRB) approval (UP-24-00296). All interview participants provided verbal informed consent before participation. Results From October 2024 to January 2025, LA County DPH case managers contacted 344 people with a reported HCV-positive test result. Among them, 168 (49%) were already treated for Hepatitis C, and 176 had not received any treatment. Table Ⅰ indicates that 54% of the study participants faced barriers to Hepatitis C treatment [ 13 ]. The most reported barriers to treatment were personal barriers, namely that it was not a personal health priority to start treatment, followed by issues with the medical provider, such as incomplete follow-up after initial visit. Lack of insurance and inadequate access to medical care were also barriers to HCV treatment [ 13 ]. We completed individual interviews with untreated study participants (n = 7) and treated study participants (n = 3). Of the untreated study participants, three were Spanish speakers, and four were English speakers. All three treated study participants were English speakers. Hepatitis C Treatment Barriers Faced by Untreated English and Spanish-Speaking Study Participants A total of twelve parent codes/themes were created for untreated study participant narratives (n = 7), and of those, barriers to linkage-to-cure include (1) the high cost of getting treated, (2) language barriers, (3) transportation to get to a medical provider, (4) lack of information, and (5) limited ability to navigate the healthcare system. Cost barriers were most commonly cited, especially among the Spanish-speaking participants. Participants mentioned the high cost of insurance and personal or family financial instability that prevented them from initiating or continuing HCV treatment. Language barriers were also substantial concerns. “Since I don’t speak 100% English, I was treated at the hospital in Los Angeles and one doctor was a liver doctor, the other one was a hepatitis doctor, the other one was a cirrhosis doctor, and I didn’t understand very well what they were telling me. And the medications were in English, and so I withdrew a little bit and I didn’t want to take care of myself anymore because I didn’t understand anything. Now I just changed… to another primary care doctor who explains it well in Spanish and in 20 minutes, he explained the hepatitis C.” (Untreated Spanish-speaking Study Participant #1) Lack of information emerged as a significant theme across interviews, indicating that insufficient or unclear information about Hepatitis C and treatment options is a common experience. This theme reflects healthcare providers’ failure to adequately explain Hepatitis C, its implications, and available treatments. The prevalence of this theme highlights a critical gap in community-level and patient education and the absence of health communication that may be contributing to treatment avoidance or delay. This knowledge gap emerged as a significant barrier to treatment engagement among the interviewed participants. “ I hadn’t heard so much about [HCV at the time of my diagnosis]… I don’t really know all that stuff about Hepatitis, what causes it or what is up with that. ” (Untreated Spanish-Speaking Study Participant #2) “ Okay, all right, ‘cause I feel like a real dummy right now… I didn’t get this information [previously, but] even [the] little bit you’ve given me [during the interview], it makes sense. ” (Untreated English-speaking Study Participant #5) Frustration with navigating the healthcare system emerged as another prominent theme, particularly among Spanish-speaking participants. This theme reflects feelings of dissatisfaction or annoyance regarding healthcare experiences. It also captures broader discontent with the quality of care provided. “ I tried [to get treatment] before, but at least 3 or 4 times, and [they] all have been unsuccessful because of the blood draw process… I was an IV drug user, so I have collapsed veins… For test, [they need] sometimes two tests, not just one. I remember at one clinic, they were successful, albeit after a few tries, you know, of poking me with a needle. But the second [visit] was unsuccessful. And they needed that second blood test in order to prescribe medicine to treat it. And that second blood draw wasn’t successful. ” (Untreated English-speaking Study Participant #3) Spanish-speaking untreated participants appear to experience heightened frustration with their healthcare experiences, suggesting potential language-related or cultural barriers in provider-patient relationships. This frustration may further discourage engagement with the healthcare system for Hepatitis C treatment. Participants described experiences where they felt dismissed, not taken seriously, or treated impersonally by healthcare providers. These negative interactions appeared to create lasting impressions that discouraged future treatment-seeking behavior. Facilitators of Hepatitis C Treatment Among Untreated English and Spanish-Speaking Study Participants Hepatitis C treatment facilitators among untreated community members include (1) high motivation to seek treatment and (2) the importance of support systems. The motivation to seek treatment captures the internal and external drivers encouraging patients to pursue care for their HCV infection. The motivation theme was particularly prominent among Spanish-speaking study participants. “Because, well yes, I have [HCV which] is going to make me sick in the future or I can pass [it] on to someone else. I think it is good to [seek treatment].” (Untreated Spanish-speaking Study Participant #2) Having a support system was important among participants. This theme encompasses the role of personal, family, and other social networks in influencing treatment decisions. Desire for provider support/guidance was most frequent, familial support and clinician trust were also commonly discussed, and religious support was the least mentioned. The distribution of support system codes showed interesting patterns across language groups. Familial support was more evenly distributed across both language groups, indicating that family influence on treatment decisions is important regardless of language or cultural background. Spanish-speaking participants more frequently mentioned the desire for provider support/guidance, suggesting that Spanish-speaking untreated individuals may particularly value and need additional guidance from healthcare providers. “ I’ve been involved with the NA [Narcotics Anonymous] community. So that’s kind of like my support system, you know. We’re kind of open with each other, so there’s no judgment there, you know… they know my defects. We know each other’s, you know, defects and stuff. So that’s our support system. And I have some family, too, that understands what I’m going through. ” (Untreated English-speaking Study Participant #3) Hepatitis C Treatment Barriers Faced by Treated English-Speaking Study Participants Among treated English-speaking study participants (n = 3), several treatment barriers emerged that prevented them from accessing timely HCV treatment. A total of six parent codes were created for treated study participant narratives, and of those, participants described four major barriers to HCV treatment that disrupted their treatment journey: (1) homelessness, (2) incarceration, (3) drug addiction, and (4) long wait times to see a provider. For Treated English-speaking Study Participant #1, these challenges were deeply interconnected. He explained, “ Yeah, I bet I was homeless. I was in and out of jail… These are kind of all of the, you know, the consequences of drug addiction, you know, which is how I got the Hep C [through] sharing needles. ” His experience illustrates how overlapping life circumstances made it difficult to prioritize health or engage in care. Treated English-speaking Study Participant #4 encountered structural barriers, such as delays in the referral process. “ I find Hepatitis C, and my primary doctor referred me for [a] specialist. It took so long time to meet me ,” she shared, expressing frustration that “ to start my medication, I took 2 months to meet the doctor. ” Her case underscores how even patients ready to begin treatment can face delays caused by fragmented care coordination and long waits for specialist access. These barriers, whether rooted in social instability or healthcare system delays, significantly influenced access to timely and consistent Hepatitis C treatment. Facilitators of Hepatitis C Treatment Among Treated English-Speaking Study Participants Despite their challenges, participants identified clear facilitators that helped them engage with care. These included (1) family support, (2) provider trust, (3) insurance coverage, (4) understanding the benefits of Hepatitis C treatment, and (5) the desire to avoid stigmatization. Treated English-speaking Study Participant #1 emphasized how his wife helped keep him accountable. “She was always telling me, you know, ‘Did you take your meds?’… She wanted me to get healthy... because obviously she loves me, and she loves our family.” Her encouragement made adherence feel like a shared responsibility rooted in love and concern. The birth of a child also served as a powerful motivator. The same treated participant described how fatherhood shifted his perspective: “ Once that happened, and then the birth of my son happened shortly after that. It just gave me this new lease on life, and was just like, hey man… you’re not getting younger. You need to get healthier. You need to be there. You need to be around for your kids.” He also reflected on the impact of provider communication. “If they say this is a good idea, then I’m gonna do it,” he said, underscoring how confidence in his care team helped him move forward with treatment. Insurance played a critical role. Treated English-speaking Study Participant #1 shared, “I’m just on Medi-Cal, you know, regular medical insurance, and they covered it fully... everything was from the specialist to my GP... It was very easy... one of the easier things I had to do.” For him, comprehensive Medi-Cal coverage eliminated financial stress and simplified care access. After completing treatment, participants described the benefits of treatment, specifically the improvements to both their physical health and sense of self. Treated English-speaking Study Participant #4 said the medication allowed her to return to her normal routine. “ [I’ve] improved. I am back for the normal life ,” she said. “ I’m active now, I can do everything. ” She associated recovery with regaining control over daily life and being able to care for her family again. Treated English-speaking Study Participant #1 described a deep emotional shift. “ It made me feel like a real adult... I’m being responsible for my kids. I’m being responsible for my wife. I’m doing all these things, you know, after living a life of risk taking behavior that led to me getting a hep C. ” For him, treatment wasn’t just about eliminating the virus. It was about rebuilding a stable and purposeful life. Participants also expressed that the stigma associated with Hepatitis C shaped their sense of urgency to pursue care. Treated English-speaking Study Participant #1 recalled avoiding physical contact, saying, “I can’t shake your hand right now... Well, I’m bleeding... what does that mean?” This discomfort reflected internalized judgment from others, even when the risk was low. The desire to eliminate ongoing stigmatization and embarrassment motivated them to seek treatment. Discussion This mixed-methods study allowed for an in-depth exploration of barriers and facilitators to Hepatitis C treatment. A comparison of quantitative survey data and qualitative interview themes reveals critical areas of convergence and nuance regarding patient experience. This study highlights the complex interplay of linguistic, socioeconomic, and systemic factors that must be addressed to positively influence treatment engagement and outcomes. Linguistic Factors Linguistic factors include barriers such as limited English proficiency. Quantitative responses indicated that personal and provider-specific barriers were the most significant barriers to care. Qualitative interviews expanded on this, identifying language barriers and frustration navigating the healthcare system as the specific drivers of negative provider interactions. While quantitative data show that people are highly motivated to seek treatment, qualitative themes suggest this motivation is often stifled by a lack of linguistic and cultural sensitivity. For instance, limited English proficiency is a barrier to Hepatitis C treatment among migrant populations. Spanish-speaking immigrants often report that a lack of translated materials and culturally sensitive services prevents them from understanding their risk or the benefits of newer treatments [ 14 ]. This is supported by a 2023 study of California safety-net clinics, which showed that nearly one in five Spanish-language calls ended with the scheduler hanging up or stating that no Spanish-speaking assistance was available [ 15 ]. Our findings that Spanish-speaking participants frequently experienced heightened frustration and a greater need for provider guidance aligned with prior evidence showing that personalized outreach in Spanish, such as for colorectal cancer [ 16 ], can significantly improve adherence and potentially bridge the Hepatitis C treatment gap. Socioeconomic Factors Social support systems, financial instability, insurance status, housing security, and the impact of stigma significantly shape the landscape of Hepatitis C treatment engagement and continuation. This study’s findings emphasize the importance of social facilitators. Untreated study participants were highly motivated to seek treatment and cure their infection. This indicates an opportunity for healthcare providers to leverage motivation and convert it into treatment-seeking behavior. Outreach strategies should highlight the benefits of treatment to their health, i.e., the decreased likelihood of liver cancer, and the opportunity to protect loved ones from infection, which may convince people to get treatment. Evon et al. [ 17 ] identified several facilitators of treatment, including better future quality of life and achieving an HCV-uninfected status. Highlighting these comprehensive benefits in patient education and counseling could serve as powerful motivators for treatment initiation. Amoako et al. [ 18 ] reported that family, especially having children, shifts the perspective on patient health and acts as a facilitator of Hepatitis C treatment. This facilitation is driven by a sense of familial duty, where pursuing treatment is viewed as a way to fulfill one’s responsibilities to loved ones and ensure the well-being of the entire household [ 19 ]. Since family support played a crucial role in treatment decisions for treated study participants, outreach and education efforts should encourage the inclusion of family members in treatment discussions. However, those social motivators can be undermined by the harsh realities of economic instability. Participants highlighted that being underinsured or uninsured, and overall financial instability, created significant challenges to initiating or continuing their care. These findings suggest that for many participants, the inability to navigate the costs associated with healthcare is a major deterrent to treatment engagement. Addressing these economic hurdles is essential for moving beyond diagnosis to treatment initiation. The treatment journey is further complicated for those experiencing social instability, such as homelessness or incarceration. For participants facing those challenges, often in tandem with drug addiction, Hepatitis C care is frequently sidelined by the more immediate demands of basic survival and the consequences of the legal system. Furthermore, qualitative insights revealed that while stigma can act as a motivator for some seeking to eliminate a source of judgment [ 18 ], it remains a deterrent among immigrant populations [ 20 ]. To address those barriers, providers should work closely with patient navigators, strengthen harm reduction practices, utilize mobile clinics for the unhoused, ensure treatment continuity for people re-entering the community from incarceration, and policies should reflect up-to-date staff training on building trust and cultural sensitivity when working with people with Hepatitis C. Systemic Factors Systemic factors included structural barriers within the healthcare system, such as insurance restrictions and treatment prior authorization requirements, and challenges in navigating complex care pathways. Insurance barriers were identified as obstacles in both the survey and interview data. Even with insurance (private insurance, Medicare, Medicaid), treatment initiation was low. Research shows that those with Medicaid face longer waiting times for care than those with private coverage, suggesting that insurance type and status are critical determinants of timely Hepatitis C treatment [ 21 ]. This is further evidenced by findings from LA County, where 69% of Hepatitis C-infected residents remained untreated, with the highest lack of treatment observed among those with no insurance or public insurance. While California removed prior authorization for California’s Medicaid program in 2024, Medicaid beneficiaries remain disproportionately disadvantaged due to high rates of co-occurring challenges like housing instability and substance use disorders. Consequently, Hepatitis C treatment initiation remains a significant challenge unless prior authorization is eliminated from all insurance types and underlying social determinants of health are addressed [ 22 ]. Implications for Clinical Practice and Policy Our findings have important implications for clinical practice and public health policy in LA County. Healthcare systems must prioritize patient navigation and care coordination services, comprehensive language support services, including professional medical interpretation, and culturally tailored patient education materials. Culturally competent healthcare staff is also important. Addressing negative healthcare experiences through improved provider communication and patient-centered care approaches could enhance treatment engagement and reduce healthcare system avoidance. Policy interventions focused on expanding insurance coverage, reducing treatment costs, and eliminating prior authorization requirements could significantly improve access to Hepatitis C treatment. By understanding specific local barriers, we can more effectively inform and strengthen local Hepatitis C elimination efforts, such as the LA County Viral Hepatitis Action Plan [ 23 ]. Limitations The small sample size may limit the generalizability of our findings to the broader population of LA County. Future research should include larger, more diverse samples to better understand the full spectrum of barriers and facilitators affecting Hepatitis C treatment engagement. While the inclusion of Spanish-speaking participants represents a significant strength of this study - reflecting a critical demographic within LA County - this focus may not fully capture the experiences of other linguistic minorities in the region, necessitating future research into diverse immigrant and refugee communities to develop a more comprehensive understanding of the linguistic and cultural factors affecting HCV treatment. Declarations Funding disclosure statement: Project activities were partially supported by the USC and the Southern California Clinical and Translational Science Institute, Grant # UL1TR001855 (received by JDK, DS). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Data Availability Statement The quantitative table generated during the study is available in the Figshare repository. This can be accessed via DOI: 10.6084/m9.figshare.31476604 . For peer review purposes, the data can be accessed privately at: https://figshare.com/s/59c89223502c841d7f42 . References Manns MP, Buti M, Gane E, et al. Hepatitis C virus infection. Nat Rev Dis Primers. 2017;3(1):1–19. 10.1038/nrdp.2017.6 . Stroffolini T, Stroffolini G. Prevalence and modes of transmission of hepatitis C virus infection: a historical worldwide review. Viruses. 2024;16(7):1115. 10.3390/v16071115 . Saab S, Le L, Saggi S, Sundaram V, Tong MJ. Toward the elimination of hepatitis C in the United States. Hepatology. 2018;67(6):2449–59. 10.1002/hep.29685 . Los Angeles County Department of Public Health. Viral Hepatitis | ACDC. Accessed February 24. 2026. http://ph.lacounty.gov/acd/diseases/hepatitis/home.htm Hernandez-Tamayo C, Stafylis C, Bhardwaj L, et al. Determinants of hepatitis C virus treatment completion among Los Angeles County residents. BMC Infect Dis. 2025;25(1):1364. 10.1186/s12879-025-11524-y . Hepatitis C. State of Medicaid Access Report Card - California. State of Hep C. Published 2025. Accessed February 24, 2026. https://stateofhepc.org/wp-content/uploads/2025/12/California-Nov-2025_Clean.pdf Harris M, Rhodes T. Hepatitis C treatment access and uptake for people who inject drugs: a review mapping the role of social factors. Harm Reduct J. 2013;10:1–11. 10.1186/1477-7517-10-7 . Stafylis C, Hernandez-Tamayo C, Bhardwaj L, et al. Project HCV Connect: using a county surveillance registry to link hepatitis C virus-infected residents to cure - Los Angeles County, April 2023 to March 2024. J Public Health Manag Pract. 2025;31(4):610–3. 10.1097/PHH.0000000000002139 . Saunders B, Sim J, Kingstone T, et al. Saturation in qualitative research: exploring its conceptualization and operationalization. Qual Quant. 2018;52(4):1893–907. 10.1007/s11135-017-0574-8 . Champion VL, Skinner CS. The health belief model. In: Glanz K, Rimer BK, Viswanath K, editors. Health Behavior and Health Education: Theory, Research, and Practice. 4th ed. Jossey-Bass; 2008. pp. 45–65. Fleming CJE. Qualitative methods for the quantitatively inclined. Center for Engaged Learning. Published July 18, 2023. Accessed February 24, 2026. https://www.centerforengagedlearning.org/qualitative-methods-for-the-quantitatively-inclined/ Maietta R, Mihas P, Swartout K, Petruzzelli J, Hamilton A. Sort and sift, think and shift: let the data be your guide, an applied approach to working with, learning from, and privileging qualitative data. Qual Rep. 2021;26(6):2045–60. 10.46743/2160-3715/2021.5013 . Handa S, Sudeep N, Albers L et al. Demographic Characteristics of Hepatitis C Linkage-to-Cure Contacts (n = 344) with HCV RNA-Positive Test Result, Los Angeles County, October 2024 to January 2025 . Figshare; 2026. 10.6084/m9.figshare.31476604 . Available from: https://figshare.com/s/59c89223502c841d7f42 Escobedo LE, Cervantes L, Havranek E. Barriers in healthcare for Latinx patients with limited English proficiency - A narrative review. J Gen Intern Med. 2023;38(5):1264–71. 10.1007/s11606-022-07995-3 . Martín-Hidalgo Birnbaum M. Study reveals that language-based discrimination limits access to mental health services. Association of Health Care Journalists. Published December 13, 2023. Accessed February 24, 2026. https://healthjournalism.org/blog/2023/12/study-reveals-that-language-based-discrimination-limits-access-to-mental-health-services Greene M, Pew T, Ozbay AB, et al. S512 impact of Spanish language outreach on multi-target stool DNA test adherence in a Spanish-speaking population in a federally qualified health center. Am J Gastroenterol. 2024;119(10S). 10.14309/01.ajg.0001031416.71677.5e . Evon DM, Golin CE, Bonner JE, Grodensky C, Velloza J. Adherence during antiviral treatment regimens for chronic hepatitis C: a qualitative study of patient-reported facilitators and barriers. J Clin Gastroenterol. 2015;49(5):e41–50. 10.1097/MCG.0000000000000151 . Amoako A, Ortiz-Paredes D, Engler K, Lebouché B, Klein MB. Patient and provider perceived barriers and facilitators to direct acting antiviral hepatitis C treatment among priority populations in high income countries: A knowledge synthesis. Int J Drug Policy. 2021;96:103247. 10.1016/j.drugpo.2021.103247 . Davila YR, Reifsnider E, Pecina I. Familismo: influence on Hispanic health behaviors. Appl Nurs Res. 2011;24(4):e67–72. 10.1016/j.apnr.2009.12.003 . Mortazhejri S, Thomas IM, Patey AM, et al. Perceptions about hepatitis C and barriers and enablers to screening and treatment among Egyptian immigrants to Canada: a theory-informed qualitative study. Int J Equity Health. 2025;24(1):203. 10.1186/s12939-025-02582-4 . Thompson WW, Symum H, Sandul A, et al. Vital Signs: hepatitis C treatment among insured adults - United States, 2019–2020. MMWR Morb Mortal Wkly Rep. 2022;71(32):1011–7. 10.15585/mmwr.mm7132e1 . Lopez H, Klausner JD, Stafylis C, Re. Racial and sociodemographic disparities in hepatitis C treatment at an urban academic medical center, 2018–2023. Open Forum Infect Dis. 2025;13(1). 10.1093/ofid/ofaf720 . Los Angeles County Department of Public Health. Los Angeles County viral hepatitis action plan. Published 2022. Accessed February 24. 2026. http://ph.lacounty.gov/acd/diseases/hepatitis/docs/LACViralHepActionPlan.pdf Tables Table Ⅰ. Demographic Characteristics of Hepatitis C Linkage-to-Cure Contacts (n=344) with HCV RNA-Positive Test Result, Los Angeles County, October 2024 to January 2025 Characteristics Residents (n=344) Sex Male 232 (67%) Age 18-29 years old 30-44 years old 45-64 years old 65+ years old 7 (2%) 60 (17%) 147 (43%) 130 (38%) Race/Ethnicity Asian Hispanic/Latino Black White Native American/Pacific Islander Multirace Other or Unknown 10 (3%) 98 (28%) 64 (19%) 95 (28%) 1 (0%) 1 (0%) 74 (22%) Health Insurance Private Insurance Medicare Medicaid/Medi-Cal Other Public-sponsored insurance None or Unknown Insurance Decline to Answer 72 (21%) 32 (9%) 92 (27%) 17 (5%) 24 (7%) 107 (31%) Treatment Status Treated 168 (49%) Interest in receiving treatment 214 (62%) Did you experience any barriers accessing/attempting to access treatment for Hepatitis C (n=197) Yes No Decline to answer 106 (54%) 65 (33%) 26 (13%) Specific Barriers to Treatment (n=91) Personal Not feeling any symptoms of infection Not a personal health priority to start treatment Concerned about treatment side effects Incarceration Other health priorities Incomplete follow-up Unaware of treatment options 39 (43%) 9 12 4 3 6 3 2 Insurance ( Underinsured/uninsured for treatment) 12 (13%) Provider-Specific Provider did not recommend treatment Incomplete follow-up after initial visit Wrong lab results 28 (31%) 12 15 1 Access to Medical Care I don’t have access to a doctor or a specialist who can treat Hepatitis C infection Lack of transportation Other 12 (13%) 7 2 3 Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9025931","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":604581446,"identity":"b6905ee2-815b-4daf-8eaf-760445810ed7","order_by":0,"name":"Shikha Handa","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAv0lEQVRIiWNgGAWjYDACCcZmZgaGAwz8EC4zCVokG4jXwsAM1mJwgFgt8rObm40Lau7IG99If/iBocI6sYGQFoM7B5uTZxx7ZrjtRo6xBMOZdCK0SCQ2H+ZhO8wI1MLGwNh2mLAW+RkgLf8O22+ekf6MgfEfEVoYbiQ2J/MCDd8gkWDGwNhAhBYDoBZj3r7DyTPOvDGWSDiWbkyEw9IfS/N8O2zb3w4MsQ811rKEHYYCEkhTPgpGwSgYBaMAFwAAXCpCKSSI4bgAAAAASUVORK5CYII=","orcid":"https://orcid.org/0009-0007-7136-1881","institution":"University of Southern California","correspondingAuthor":true,"prefix":"","firstName":"Shikha","middleName":"","lastName":"Handa","suffix":""},{"id":604581447,"identity":"9886ff57-ea09-4b33-a6a8-f6391fb97111","order_by":1,"name":"Nathan Sudeep","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Nathan","middleName":"","lastName":"Sudeep","suffix":""},{"id":604581448,"identity":"57c62c58-7b8a-417f-a257-cba88ebd646e","order_by":2,"name":"Larisa Albers","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Larisa","middleName":"","lastName":"Albers","suffix":""},{"id":604581449,"identity":"0bcb946d-2e8e-40cb-9f9d-6c5ecf240029","order_by":3,"name":"Monica Pattarroyo","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Monica","middleName":"","lastName":"Pattarroyo","suffix":""},{"id":604581450,"identity":"eb98fae2-0d15-4dc7-a43d-e81a3c81713e","order_by":4,"name":"Juan Vasquez","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Juan","middleName":"","lastName":"Vasquez","suffix":""},{"id":604581451,"identity":"c41bd1dc-1653-4885-a43c-89ae8fc6d2f4","order_by":5,"name":"Roberto E. Montgomerie","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Roberto","middleName":"E.","lastName":"Montgomerie","suffix":""},{"id":604581452,"identity":"1a15a67e-c565-46bc-a194-b4ec6e206e17","order_by":6,"name":"Ryan M. Nguyen","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Ryan","middleName":"M.","lastName":"Nguyen","suffix":""},{"id":604581453,"identity":"c612298a-f2eb-4baa-a7e9-bf132ae42984","order_by":7,"name":"Kendall Dimson","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Kendall","middleName":"","lastName":"Dimson","suffix":""},{"id":604581454,"identity":"31496a62-1c84-4d8a-aea7-071dd33e1772","order_by":8,"name":"Deena Afana","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Deena","middleName":"","lastName":"Afana","suffix":""},{"id":604581455,"identity":"2733fcdc-e474-405b-8d4d-aa82977fb321","order_by":9,"name":"Chrysovalantis Stafylis","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Chrysovalantis","middleName":"","lastName":"Stafylis","suffix":""},{"id":604581456,"identity":"6566dfb9-8f15-4e5d-ba95-9c50a4b0eb6a","order_by":10,"name":"Jeffrey D. Klausner","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Jeffrey","middleName":"D.","lastName":"Klausner","suffix":""},{"id":604581457,"identity":"b72790c1-9925-4e8b-8abb-389661d3f6c2","order_by":11,"name":"Daniel Soto","email":"","orcid":"","institution":"University of Southern California","correspondingAuthor":false,"prefix":"","firstName":"Daniel","middleName":"","lastName":"Soto","suffix":""}],"badges":[],"createdAt":"2026-03-04 05:16:41","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9025931/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9025931/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":108490930,"identity":"1d641dae-a484-4e28-9202-5cc241035be6","added_by":"auto","created_at":"2026-05-05 09:50:09","extension":"pdf","order_by":0,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":257426,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9025931/v1/defd4578-18c7-4574-a3e7-3ae7b4273d3d.pdf"}],"financialInterests":"","formattedTitle":"Barriers and Facilitators to Hepatitis C Virus Treatment in Los Angeles County","fulltext":[{"header":"Background","content":"\u003cp\u003eChronic Hepatitis C virus (HCV) infection is an asymptomatic infectious disease that affects the liver. Globally, Hepatitis C is a major cause of liver transplants [\u003cspan class=\"CitationRef\"\u003e1\u003c/span\u003e]. Hepatitis C is primarily a result of blood-to-blood transmission, spread by needles shared during intravenous drug usage [\u003cspan class=\"CitationRef\"\u003e2\u003c/span\u003e]. Without treatment, HCV-infected individuals can develop liver failure, liver cancer, cirrhosis, and die prematurely [\u003cspan class=\"CitationRef\"\u003e1\u003c/span\u003e]. HCV infection can be cured with eight to 12 weeks of daily oral treatment with the use of direct-acting antiviral medication.\u003c/p\u003e\n\u003ch3\u003eHepatitis C Virus in Los Angeles County\u003c/h3\u003e\n\u003cp\u003eMore than five million Americans, or around two percent of the American adult population, have anti-HCV antibodies, suggesting prior or current infection [\u003cspan class=\"CitationRef\"\u003e3\u003c/span\u003e]. In Los Angeles (LA) County, California, 27,678 people were diagnosed with HCV between 2019 and 2023, but only 30% of people reported knowledge of HCV treatment [\u003cspan class=\"CitationRef\"\u003e4\u003c/span\u003e]. Treatment completion rates remain low, with only 32% of people completing HCV treatment [\u003cspan class=\"CitationRef\"\u003e5\u003c/span\u003e]. Notably, non-White minority groups, particularly Hispanic, Latino, or Black, had the lowest percentages of reported treatment completion [\u003cspan class=\"CitationRef\"\u003e5\u003c/span\u003e].\u003c/p\u003e \u003cp\u003eRecent policy changes in Medi-Cal, such as the removal of prior authorization and prescriber restrictions for HCV treatment [\u003cspan class=\"CitationRef\"\u003e6\u003c/span\u003e], were intended to improve access. However, significant obstacles remain, including structural issues in the healthcare system, provider-related practices, and patient-level factors such as stigma [\u003cspan class=\"CitationRef\"\u003e7\u003c/span\u003e]. In particular, gaps remain in understanding the unique experiences of Spanish-speaking Latinx individuals, who represent a significant proportion of the untreated population. Therefore, this study aimed to identify and describe the barriers and facilitators to HCV treatment among LA County residents.\u003c/p\u003e "},{"header":"Methods","content":"\u003cp\u003eA mixed-methods study was conducted from October 2024 to January 2025.\u003c/p\u003e\u003ch3\u003eParticipants and recruitment\u003c/h3\u003e\u003cp\u003eIn collaboration with the LA County Department of Public Health (DPH), the University of Southern California (USC) established a linkage-to-cure program that uses the LA County DPH’s HCV surveillance registry [\u003cspan class=\"CitationRef\"\u003e8\u003c/span\u003e]. As part of the linkage-to-cure program, DPH case managers contact LA County residents who have a reported HCV-RNA-positive test result. Case managers provide HCV education and assess whether residents are aware of their diagnosis, have taken steps toward treatment, and are interested in linkage-to-cure services. Interested residents are linked to HCV treatment with their primary care provider, community health clinics or a telehealth program [\u003cspan class=\"CitationRef\"\u003e8\u003c/span\u003e].\u003c/p\u003e\u003cp\u003eFor the purposes of this study, we extracted and analyzed de-identified programmatic data to evaluate the obstacles of program participants during the analysis period. In addition, a subset of those contacted were invited to participate in a 30- to 60-minute semi-structured qualitative interview if (1) they had a confirmed HCV-RNA-positive result, (2) were LA County residents, and (3) were 18 years old or older. Ten people met the inclusion criteria and were interviewed. Relying on Saunders et al. [\u003cspan class=\"CitationRef\"\u003e9\u003c/span\u003e], we felt ten participants were enough to reach thematic saturation. Interviews were conducted in English and Spanish.\u003c/p\u003e\n\u003ch3\u003eData collection\u003c/h3\u003e\n\u003cp\u003eFor the quantitative analysis, anonymous data were extracted from the linkage-to-cure program between October 2024 and January 2025. Data extracted included demographics (sex, age group, race/ethnicity), health insurance type, treatment status, willingness to receive treatment, and specific reported HCV barriers to treatment.\u003c/p\u003e \u003cp\u003eInterview guides were developed using the Transtheoretical Model and Health Belief Model, which served as a starting point to help determine the reasons for wanting to test and manage HCV [\u003cspan citationid=\"CR10\" class=\"CitationRef\"\u003e10\u003c/span\u003e]. Interview guides were tailored to treated and untreated HCV study participants. Questions about treatment journey and medication adherence were asked to treated study participants, but not to untreated study participants. This allowed for the development of a targeted guide that assessed knowledge, attitudes, and beliefs among treated and untreated HCV study participants. Interview guides explored study participant-level treatment barriers, including stigma, insurance challenges, and health literacy, as well as facilitators such as strategies to improve treatment linkage. Interviews were conducted on Zoom by trained interviewers, audio-recorded, transcribed verbatim, and stored securely on the USC OneDrive. Data were deidentified to keep the study participants\u0026rsquo; information confidential. Participants could use pseudonyms to protect their privacy and received a \u003cspan\u003e$\u003c/span\u003e100 electronic gift card upon completion.\u003c/p\u003e \u003cdiv id=\"Sec6\" class=\"Section2\"\u003e \u003ch2\u003eData analysis\u003c/h2\u003e \u003cp\u003eThe quantitative analysis is presented with descriptive statistics, utilizing frequencies and percentages. Data were analyzed using SAS Software Version 9.4. For the qualitative part of the analysis, an inductive coding approach was employed to analyze interviews with untreated and treated study participants [\u003cspan citationid=\"CR11\" class=\"CitationRef\"\u003e11\u003c/span\u003e, \u003cspan citationid=\"CR12\" class=\"CitationRef\"\u003e12\u003c/span\u003e]. Thematic analysis was conducted through iterative coding of interview transcripts from study participant groups using Dedoose Version 9.2.22, a cloud-based qualitative analysis platform. Codes were developed collaboratively through repeated immersion in the data, with themes refined through comparative analysis across participant narratives.\u003c/p\u003e \u003c/div\u003e\n\u003ch3\u003eEthical Considerations\u003c/h3\u003e\n\u003cp\u003e The study received USC Institutional Review Board (IRB) approval (UP-24-00296). All interview participants provided verbal informed consent before participation.\u003c/p\u003e"},{"header":"Results","content":"\u003cp\u003eFrom October 2024 to January 2025, LA County DPH case managers contacted 344 people with a reported HCV-positive test result. Among them, 168 (49%) were already treated for Hepatitis C, and 176 had not received any treatment. Table Ⅰ indicates that 54% of the study participants faced barriers to Hepatitis C treatment [\u003cspan citationid=\"CR13\" class=\"CitationRef\"\u003e13\u003c/span\u003e]. The most reported barriers to treatment were personal barriers, namely that it was not a personal health priority to start treatment, followed by issues with the medical provider, such as incomplete follow-up after initial visit. Lack of insurance and inadequate access to medical care were also barriers to HCV treatment [\u003cspan citationid=\"CR13\" class=\"CitationRef\"\u003e13\u003c/span\u003e].\u003c/p\u003e \u003cp\u003eWe completed individual interviews with untreated study participants (n\u0026thinsp;=\u0026thinsp;7) and treated study participants (n\u0026thinsp;=\u0026thinsp;3). Of the untreated study participants, three were Spanish speakers, and four were English speakers. All three treated study participants were English speakers.\u003c/p\u003e\n\u003ch3\u003eHepatitis C Treatment Barriers Faced by Untreated English and Spanish-Speaking Study Participants\u003c/h3\u003e\n\u003cp\u003eA total of twelve parent codes/themes were created for untreated study participant narratives (n\u0026thinsp;=\u0026thinsp;7), and of those, barriers to linkage-to-cure include (1) the high cost of getting treated, (2) language barriers, (3) transportation to get to a medical provider, (4) lack of information, and (5) limited ability to navigate the healthcare system.\u003c/p\u003e \u003cp\u003eCost barriers were most commonly cited, especially among the Spanish-speaking participants. Participants mentioned the high cost of insurance and personal or family financial instability that prevented them from initiating or continuing HCV treatment. Language barriers were also substantial concerns.\u003cdiv class=\"BlockQuote\"\u003e\u003cp\u003e \u003cem\u003e\u0026ldquo;Since I don\u0026rsquo;t speak 100% English, I was treated at the hospital in Los Angeles and one doctor was a liver doctor, the other one was a hepatitis doctor, the other one was a cirrhosis doctor, and I didn\u0026rsquo;t understand very well what they were telling me. And the medications were in English, and so I withdrew a little bit and I didn\u0026rsquo;t want to take care of myself anymore because I didn\u0026rsquo;t understand anything. Now I just changed\u0026hellip; to another primary care doctor who explains it well in Spanish and in 20 minutes, he explained the hepatitis C.\u0026rdquo;\u003c/em\u003e (Untreated Spanish-speaking Study Participant #1)\u003c/p\u003e\u003c/div\u003e\u003c/p\u003e \u003cp\u003eLack of information emerged as a significant theme across interviews, indicating that insufficient or unclear information about Hepatitis C and treatment options is a common experience. This theme reflects healthcare providers\u0026rsquo; failure to adequately explain Hepatitis C, its implications, and available treatments. The prevalence of this theme highlights a critical gap in community-level and patient education and the absence of health communication that may be contributing to treatment avoidance or delay. This knowledge gap emerged as a significant barrier to treatment engagement among the interviewed participants.\u003cdiv class=\"BlockQuote\"\u003e\u003cp\u003e\u0026ldquo;\u003cem\u003eI hadn\u0026rsquo;t heard so much about [HCV at the time of my diagnosis]\u0026hellip; I don\u0026rsquo;t really know all that stuff about Hepatitis, what causes it or what is up with that.\u003c/em\u003e\u0026rdquo; (Untreated Spanish-Speaking Study Participant #2)\u003c/p\u003e\u003cp\u003e\u0026ldquo;\u003cem\u003eOkay, all right, \u0026lsquo;cause I feel like a real dummy right now\u0026hellip; I didn\u0026rsquo;t get this information [previously, but] even [the] little bit you\u0026rsquo;ve given me [during the interview], it makes sense.\u003c/em\u003e\u0026rdquo; (Untreated English-speaking Study Participant #5)\u003c/p\u003e\u003c/div\u003e\u003c/p\u003e \u003cp\u003eFrustration with navigating the healthcare system emerged as another prominent theme, particularly among Spanish-speaking participants. This theme reflects feelings of dissatisfaction or annoyance regarding healthcare experiences. It also captures broader discontent with the quality of care provided.\u003cdiv class=\"BlockQuote\"\u003e\u003cp\u003e\u0026ldquo;\u003cem\u003eI tried [to get treatment] before, but at least 3 or 4 times, and [they] all have been unsuccessful because of the blood draw process\u0026hellip; I was an IV drug user, so I have collapsed veins\u0026hellip; For test, [they need] sometimes two tests, not just one. I remember at one clinic, they were successful, albeit after a few tries, you know, of poking me with a needle. But the second [visit] was unsuccessful. And they needed that second blood test in order to prescribe medicine to treat it. And that second blood draw wasn\u0026rsquo;t successful.\u003c/em\u003e\u0026rdquo; (Untreated English-speaking Study Participant #3)\u003c/p\u003e\u003c/div\u003e\u003c/p\u003e \u003cp\u003e Spanish-speaking untreated participants appear to experience heightened frustration with their healthcare experiences, suggesting potential language-related or cultural barriers in provider-patient relationships. This frustration may further discourage engagement with the healthcare system for Hepatitis C treatment. Participants described experiences where they felt dismissed, not taken seriously, or treated impersonally by healthcare providers. These negative interactions appeared to create lasting impressions that discouraged future treatment-seeking behavior.\u003c/p\u003e\n\u003ch3\u003eFacilitators of Hepatitis C Treatment Among Untreated English and Spanish-Speaking Study Participants\u003c/h3\u003e\n\u003cp\u003eHepatitis C treatment facilitators among untreated community members include (1) high motivation to seek treatment and (2) the importance of support systems.\u003c/p\u003e \u003cp\u003eThe motivation to seek treatment captures the internal and external drivers encouraging patients to pursue care for their HCV infection. The motivation theme was particularly prominent among Spanish-speaking study participants.\u003cdiv class=\"BlockQuote\"\u003e\u003cp\u003e\u003cem\u003e\u0026ldquo;Because, well yes, I have [HCV which] is going to make me sick in the future or I can pass [it] on to someone else. I think it is good to [seek treatment].\u0026rdquo;\u003c/em\u003e (Untreated Spanish-speaking Study Participant #2)\u003c/p\u003e\u003c/div\u003e\u003c/p\u003e \u003cp\u003eHaving a support system was important among participants. This theme encompasses the role of personal, family, and other social networks in influencing treatment decisions. Desire for provider support/guidance was most frequent, familial support and clinician trust were also commonly discussed, and religious support was the least mentioned. The distribution of support system codes showed interesting patterns across language groups. Familial support was more evenly distributed across both language groups, indicating that family influence on treatment decisions is important regardless of language or cultural background. Spanish-speaking participants more frequently mentioned the desire for provider support/guidance, suggesting that Spanish-speaking untreated individuals may particularly value and need additional guidance from healthcare providers.\u003cdiv class=\"BlockQuote\"\u003e\u003cp\u003e\u0026ldquo;\u003cem\u003eI\u0026rsquo;ve been involved with the NA [Narcotics Anonymous] community. So that\u0026rsquo;s kind of like my support system, you know. We\u0026rsquo;re kind of open with each other, so there\u0026rsquo;s no judgment there, you know\u0026hellip; they know my defects. We know each other\u0026rsquo;s, you know, defects and stuff. So that\u0026rsquo;s our support system. And I have some family, too, that understands what I\u0026rsquo;m going through.\u003c/em\u003e\u0026rdquo; (Untreated English-speaking Study Participant #3)\u003c/p\u003e\u003c/div\u003e\u003c/p\u003e \u003cdiv id=\"Sec11\" class=\"Section2\"\u003e \u003ch2\u003eHepatitis C Treatment Barriers Faced by Treated English-Speaking Study Participants\u003c/h2\u003e \u003cp\u003eAmong treated English-speaking study participants (n\u0026thinsp;=\u0026thinsp;3), several treatment barriers emerged that prevented them from accessing timely HCV treatment. A total of six parent codes were created for treated study participant narratives, and of those, participants described four major barriers to HCV treatment that disrupted their treatment journey: (1) homelessness, (2) incarceration, (3) drug addiction, and (4) long wait times to see a provider.\u003c/p\u003e \u003cp\u003e For Treated English-speaking Study Participant #1, these challenges were deeply interconnected. He explained, \u0026ldquo;\u003cem\u003eYeah, I bet I was homeless. I was in and out of jail\u0026hellip; These are kind of all of the, you know, the consequences of drug addiction, you know, which is how I got the Hep C [through] sharing needles.\u003c/em\u003e\u0026rdquo; His experience illustrates how overlapping life circumstances made it difficult to prioritize health or engage in care.\u003c/p\u003e \u003cp\u003eTreated English-speaking Study Participant #4 encountered structural barriers, such as delays in the referral process. \u0026ldquo;\u003cem\u003eI find Hepatitis C, and my primary doctor referred me for [a] specialist. It took so long time to meet me\u003c/em\u003e,\u0026rdquo; she shared, expressing frustration that \u0026ldquo;\u003cem\u003eto start my medication, I took 2 months to meet the doctor.\u003c/em\u003e\u0026rdquo; Her case underscores how even patients ready to begin treatment can face delays caused by fragmented care coordination and long waits for specialist access.\u003c/p\u003e \u003cp\u003eThese barriers, whether rooted in social instability or healthcare system delays, significantly influenced access to timely and consistent Hepatitis C treatment.\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec12\" class=\"Section2\"\u003e \u003ch2\u003eFacilitators of Hepatitis C Treatment Among Treated English-Speaking Study Participants\u003c/h2\u003e \u003cp\u003e Despite their challenges, participants identified clear facilitators that helped them engage with care. These included (1) family support, (2) provider trust, (3) insurance coverage, (4) understanding the benefits of Hepatitis C treatment, and (5) the desire to avoid stigmatization.\u003c/p\u003e \u003cp\u003eTreated English-speaking Study Participant #1 emphasized how his wife helped keep him accountable. \u003cem\u003e\u0026ldquo;She was always telling me, you know, \u0026lsquo;Did you take your meds?\u0026rsquo;\u0026hellip; She wanted me to get healthy... because obviously she loves me, and she loves our family.\u0026rdquo;\u003c/em\u003e Her encouragement made adherence feel like a shared responsibility rooted in love and concern. The birth of a child also served as a powerful motivator. The same treated participant described how fatherhood shifted his perspective: \u0026ldquo;\u003cem\u003eOnce that happened, and then the birth of my son happened shortly after that. It just gave me this new lease on life, and was just like, hey man\u0026hellip; you\u0026rsquo;re not getting younger. You need to get healthier. You need to be there. You need to be around for your kids.\u0026rdquo;\u003c/em\u003e\u003c/p\u003e \u003cp\u003eHe also reflected on the impact of provider communication. \u003cem\u003e\u0026ldquo;If they say this is a good idea, then I\u0026rsquo;m gonna do it,\u0026rdquo;\u003c/em\u003e he said, underscoring how confidence in his care team helped him move forward with treatment.\u003c/p\u003e \u003cp\u003eInsurance played a critical role. Treated English-speaking Study Participant #1 shared, \u003cem\u003e\u0026ldquo;I\u0026rsquo;m just on Medi-Cal, you know, regular medical insurance, and they covered it fully... everything was from the specialist to my GP... It was very easy... one of the easier things I had to do.\u0026rdquo;\u003c/em\u003e For him, comprehensive Medi-Cal coverage eliminated financial stress and simplified care access.\u003c/p\u003e \u003cp\u003eAfter completing treatment, participants described the benefits of treatment, specifically the improvements to both their physical health and sense of self. Treated English-speaking Study Participant #4 said the medication allowed her to return to her normal routine. \u0026ldquo;\u003cem\u003e[I\u0026rsquo;ve] improved. I am back for the normal life\u003c/em\u003e,\u0026rdquo; she said. \u0026ldquo;\u003cem\u003eI\u0026rsquo;m active now, I can do everything.\u003c/em\u003e\u0026rdquo; She associated recovery with regaining control over daily life and being able to care for her family again. Treated English-speaking Study Participant #1 described a deep emotional shift. \u0026ldquo;\u003cem\u003eIt made me feel like a real adult... I\u0026rsquo;m being responsible for my kids. I\u0026rsquo;m being responsible for my wife. I\u0026rsquo;m doing all these things, you know, after living a life of risk taking behavior that led to me getting a hep C.\u003c/em\u003e\u0026rdquo; For him, treatment wasn\u0026rsquo;t just about eliminating the virus. It was about rebuilding a stable and purposeful life.\u003c/p\u003e \u003cp\u003e Participants also expressed that the stigma associated with Hepatitis C shaped their sense of urgency to pursue care. Treated English-speaking Study Participant #1 recalled avoiding physical contact, saying, \u003cem\u003e\u0026ldquo;I can\u0026rsquo;t shake your hand right now... Well, I\u0026rsquo;m bleeding... what does that mean?\u0026rdquo;\u003c/em\u003e This discomfort reflected internalized judgment from others, even when the risk was low. The desire to eliminate ongoing stigmatization and embarrassment motivated them to seek treatment.\u003c/p\u003e \u003c/div\u003e"},{"header":"Discussion","content":"\u003cp\u003eThis mixed-methods study allowed for an in-depth exploration of barriers and facilitators to Hepatitis C treatment. A comparison of quantitative survey data and qualitative interview themes reveals critical areas of convergence and nuance regarding patient experience. This study highlights the complex interplay of linguistic, socioeconomic, and systemic factors that must be addressed to positively influence treatment engagement and outcomes.\u003c/p\u003e \u003cdiv id=\"Sec14\" class=\"Section2\"\u003e \u003ch2\u003eLinguistic Factors\u003c/h2\u003e \u003cp\u003eLinguistic factors include barriers such as limited English proficiency. Quantitative responses indicated that personal and provider-specific barriers were the most significant barriers to care. Qualitative interviews expanded on this, identifying language barriers and frustration navigating the healthcare system as the specific drivers of negative provider interactions. While quantitative data show that people are highly motivated to seek treatment, qualitative themes suggest this motivation is often stifled by a lack of linguistic and cultural sensitivity. For instance, limited English proficiency is a barrier to Hepatitis C treatment among migrant populations. Spanish-speaking immigrants often report that a lack of translated materials and culturally sensitive services prevents them from understanding their risk or the benefits of newer treatments [\u003cspan citationid=\"CR14\" class=\"CitationRef\"\u003e14\u003c/span\u003e]. This is supported by a 2023 study of California safety-net clinics, which showed that nearly one in five Spanish-language calls ended with the scheduler hanging up or stating that no Spanish-speaking assistance was available [\u003cspan citationid=\"CR15\" class=\"CitationRef\"\u003e15\u003c/span\u003e]. Our findings that Spanish-speaking participants frequently experienced heightened frustration and a greater need for provider guidance aligned with prior evidence showing that personalized outreach in Spanish, such as for colorectal cancer [\u003cspan citationid=\"CR16\" class=\"CitationRef\"\u003e16\u003c/span\u003e], can significantly improve adherence and potentially bridge the Hepatitis C treatment gap.\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec15\" class=\"Section2\"\u003e \u003ch2\u003eSocioeconomic Factors\u003c/h2\u003e \u003cp\u003eSocial support systems, financial instability, insurance status, housing security, and the impact of stigma significantly shape the landscape of Hepatitis C treatment engagement and continuation. This study\u0026rsquo;s findings emphasize the importance of social facilitators. Untreated study participants were highly motivated to seek treatment and cure their infection. This indicates an opportunity for healthcare providers to leverage motivation and convert it into treatment-seeking behavior. Outreach strategies should highlight the benefits of treatment to their health, i.e., the decreased likelihood of liver cancer, and the opportunity to protect loved ones from infection, which may convince people to get treatment. Evon et al. [\u003cspan citationid=\"CR17\" class=\"CitationRef\"\u003e17\u003c/span\u003e] identified several facilitators of treatment, including better future quality of life and achieving an HCV-uninfected status. Highlighting these comprehensive benefits in patient education and counseling could serve as powerful motivators for treatment initiation. Amoako et al. [\u003cspan citationid=\"CR18\" class=\"CitationRef\"\u003e18\u003c/span\u003e] reported that family, especially having children, shifts the perspective on patient health and acts as a facilitator of Hepatitis C treatment. This facilitation is driven by a sense of familial duty, where pursuing treatment is viewed as a way to fulfill one\u0026rsquo;s responsibilities to loved ones and ensure the well-being of the entire household [\u003cspan citationid=\"CR19\" class=\"CitationRef\"\u003e19\u003c/span\u003e]. Since family support played a crucial role in treatment decisions for treated study participants, outreach and education efforts should encourage the inclusion of family members in treatment discussions.\u003c/p\u003e \u003cp\u003eHowever, those social motivators can be undermined by the harsh realities of economic instability. Participants highlighted that being underinsured or uninsured, and overall financial instability, created significant challenges to initiating or continuing their care. These findings suggest that for many participants, the inability to navigate the costs associated with healthcare is a major deterrent to treatment engagement. Addressing these economic hurdles is essential for moving beyond diagnosis to treatment initiation.\u003c/p\u003e \u003cp\u003eThe treatment journey is further complicated for those experiencing social instability, such as homelessness or incarceration. For participants facing those challenges, often in tandem with drug addiction, Hepatitis C care is frequently sidelined by the more immediate demands of basic survival and the consequences of the legal system. Furthermore, qualitative insights revealed that while stigma can act as a motivator for some seeking to eliminate a source of judgment [\u003cspan citationid=\"CR18\" class=\"CitationRef\"\u003e18\u003c/span\u003e], it remains a deterrent among immigrant populations [\u003cspan citationid=\"CR20\" class=\"CitationRef\"\u003e20\u003c/span\u003e]. To address those barriers, providers should work closely with patient navigators, strengthen harm reduction practices, utilize mobile clinics for the unhoused, ensure treatment continuity for people re-entering the community from incarceration, and policies should reflect up-to-date staff training on building trust and cultural sensitivity when working with people with Hepatitis C.\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec16\" class=\"Section2\"\u003e \u003ch2\u003eSystemic Factors\u003c/h2\u003e \u003cp\u003eSystemic factors included structural barriers within the healthcare system, such as insurance restrictions and treatment prior authorization requirements, and challenges in navigating complex care pathways. Insurance barriers were identified as obstacles in both the survey and interview data. Even with insurance (private insurance, Medicare, Medicaid), treatment initiation was low. Research shows that those with Medicaid face longer waiting times for care than those with private coverage, suggesting that insurance type and status are critical determinants of timely Hepatitis C treatment [\u003cspan citationid=\"CR21\" class=\"CitationRef\"\u003e21\u003c/span\u003e]. This is further evidenced by findings from LA County, where 69% of Hepatitis C-infected residents remained untreated, with the highest lack of treatment observed among those with no insurance or public insurance. While California removed prior authorization for California\u0026rsquo;s Medicaid program in 2024, Medicaid beneficiaries remain disproportionately disadvantaged due to high rates of co-occurring challenges like housing instability and substance use disorders. Consequently, Hepatitis C treatment initiation remains a significant challenge unless prior authorization is eliminated from all insurance types and underlying social determinants of health are addressed [\u003cspan citationid=\"CR22\" class=\"CitationRef\"\u003e22\u003c/span\u003e].\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec17\" class=\"Section2\"\u003e \u003ch2\u003eImplications for Clinical Practice and Policy\u003c/h2\u003e \u003cp\u003eOur findings have important implications for clinical practice and public health policy in LA County. Healthcare systems must prioritize patient navigation and care coordination services, comprehensive language support services, including professional medical interpretation, and culturally tailored patient education materials. Culturally competent healthcare staff is also important. Addressing negative healthcare experiences through improved provider communication and patient-centered care approaches could enhance treatment engagement and reduce healthcare system avoidance. Policy interventions focused on expanding insurance coverage, reducing treatment costs, and eliminating prior authorization requirements could significantly improve access to Hepatitis C treatment. By understanding specific local barriers, we can more effectively inform and strengthen local Hepatitis C elimination efforts, such as the LA County Viral Hepatitis Action Plan [\u003cspan citationid=\"CR23\" class=\"CitationRef\"\u003e23\u003c/span\u003e].\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec18\" class=\"Section2\"\u003e \u003ch2\u003eLimitations\u003c/h2\u003e \u003cp\u003eThe small sample size may limit the generalizability of our findings to the broader population of LA County. Future research should include larger, more diverse samples to better understand the full spectrum of barriers and facilitators affecting Hepatitis C treatment engagement. While the inclusion of Spanish-speaking participants represents a significant strength of this study - reflecting a critical demographic within LA County - this focus may not fully capture the experiences of other linguistic minorities in the region, necessitating future research into diverse immigrant and refugee communities to develop a more comprehensive understanding of the linguistic and cultural factors affecting HCV treatment.\u003c/p\u003e \u003c/div\u003e"},{"header":"Declarations","content":"\u003ch2\u003eFunding\u003c/h2\u003e \u003cp\u003edisclosure statement: Project activities were partially supported by the USC and the Southern California Clinical and Translational Science Institute, Grant # UL1TR001855 (received by JDK, DS). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.\u003c/p\u003e\u003ch2\u003eData Availability Statement\u003c/h2\u003e \u003cp\u003eThe quantitative table generated during the study is available in the Figshare repository. This can be accessed via DOI: \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.6084/m9.figshare.31476604\u003c/span\u003e\u003cspan address=\"10.6084/m9.figshare.31476604\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e. For peer review purposes, the data can be accessed privately at: \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003ehttps://figshare.com/s/59c89223502c841d7f42\u003c/span\u003e\u003cspan address=\"https://figshare.com/s/59c89223502c841d7f42\" targettype=\"URL\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/p\u003e"},{"header":"References","content":"\u003col\u003e\u003cli\u003e\u003cspan\u003eManns MP, Buti M, Gane E, et al. Hepatitis C virus infection. Nat Rev Dis Primers. 2017;3(1):1\u0026ndash;19. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1038/nrdp.2017.6\u003c/span\u003e\u003cspan address=\"10.1038/nrdp.2017.6\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eStroffolini T, Stroffolini G. Prevalence and modes of transmission of hepatitis C virus infection: a historical worldwide review. Viruses. 2024;16(7):1115. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.3390/v16071115\u003c/span\u003e\u003cspan address=\"10.3390/v16071115\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eSaab S, Le L, Saggi S, Sundaram V, Tong MJ. Toward the elimination of hepatitis C in the United States. Hepatology. 2018;67(6):2449\u0026ndash;59. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1002/hep.29685\u003c/span\u003e\u003cspan address=\"10.1002/hep.29685\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eLos Angeles County Department of Public Health. Viral Hepatitis | ACDC. Accessed February 24. 2026. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003ehttp://ph.lacounty.gov/acd/diseases/hepatitis/home.htm\u003c/span\u003e\u003cspan address=\"http://ph.lacounty.gov/acd/diseases/hepatitis/home.htm\" targettype=\"URL\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eHernandez-Tamayo C, Stafylis C, Bhardwaj L, et al. Determinants of hepatitis C virus treatment completion among Los Angeles County residents. BMC Infect Dis. 2025;25(1):1364. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1186/s12879-025-11524-y\u003c/span\u003e\u003cspan address=\"10.1186/s12879-025-11524-y\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eHepatitis C. State of Medicaid Access Report Card - California. State of Hep C. Published 2025. Accessed February 24, 2026. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003ehttps://stateofhepc.org/wp-content/uploads/2025/12/California-Nov-2025_Clean.pdf\u003c/span\u003e\u003cspan address=\"https://stateofhepc.org/wp-content/uploads/2025/12/California-Nov-2025_Clean.pdf\" targettype=\"URL\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eHarris M, Rhodes T. Hepatitis C treatment access and uptake for people who inject drugs: a review mapping the role of social factors. Harm Reduct J. 2013;10:1\u0026ndash;11. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1186/1477-7517-10-7\u003c/span\u003e\u003cspan address=\"10.1186/1477-7517-10-7\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eStafylis C, Hernandez-Tamayo C, Bhardwaj L, et al. Project HCV Connect: using a county surveillance registry to link hepatitis C virus-infected residents to cure - Los Angeles County, April 2023 to March 2024. J Public Health Manag Pract. 2025;31(4):610\u0026ndash;3. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1097/PHH.0000000000002139\u003c/span\u003e\u003cspan address=\"10.1097/PHH.0000000000002139\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eSaunders B, Sim J, Kingstone T, et al. Saturation in qualitative research: exploring its conceptualization and operationalization. Qual Quant. 2018;52(4):1893\u0026ndash;907. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1007/s11135-017-0574-8\u003c/span\u003e\u003cspan address=\"10.1007/s11135-017-0574-8\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eChampion VL, Skinner CS. The health belief model. In: Glanz K, Rimer BK, Viswanath K, editors. Health Behavior and Health Education: Theory, Research, and Practice. 4th ed. Jossey-Bass; 2008. pp. 45\u0026ndash;65.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eFleming CJE. Qualitative methods for the quantitatively inclined. Center for Engaged Learning. Published July 18, 2023. Accessed February 24, 2026. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003ehttps://www.centerforengagedlearning.org/qualitative-methods-for-the-quantitatively-inclined/\u003c/span\u003e\u003cspan address=\"https://www.centerforengagedlearning.org/qualitative-methods-for-the-quantitatively-inclined/\" targettype=\"URL\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eMaietta R, Mihas P, Swartout K, Petruzzelli J, Hamilton A. Sort and sift, think and shift: let the data be your guide, an applied approach to working with, learning from, and privileging qualitative data. Qual Rep. 2021;26(6):2045\u0026ndash;60. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.46743/2160-3715/2021.5013\u003c/span\u003e\u003cspan address=\"10.46743/2160-3715/2021.5013\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eHanda S, Sudeep N, Albers L et al. \u003cem\u003eDemographic Characteristics of Hepatitis C Linkage-to-Cure Contacts (n\u0026thinsp;=\u0026thinsp;344) with HCV RNA-Positive Test Result, Los Angeles County, October 2024 to January 2025\u003c/em\u003e. Figshare; 2026. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.6084/m9.figshare.31476604\u003c/span\u003e\u003cspan address=\"10.6084/m9.figshare.31476604\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e. Available from: \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003ehttps://figshare.com/s/59c89223502c841d7f42\u003c/span\u003e\u003cspan address=\"https://figshare.com/s/59c89223502c841d7f42\" targettype=\"URL\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eEscobedo LE, Cervantes L, Havranek E. Barriers in healthcare for Latinx patients with limited English proficiency - A narrative review. J Gen Intern Med. 2023;38(5):1264\u0026ndash;71. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1007/s11606-022-07995-3\u003c/span\u003e\u003cspan address=\"10.1007/s11606-022-07995-3\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eMart\u0026iacute;n-Hidalgo Birnbaum M. Study reveals that language-based discrimination limits access to mental health services. Association of Health Care Journalists. Published December 13, 2023. Accessed February 24, 2026. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003ehttps://healthjournalism.org/blog/2023/12/study-reveals-that-language-based-discrimination-limits-access-to-mental-health-services\u003c/span\u003e\u003cspan address=\"https://healthjournalism.org/blog/2023/12/study-reveals-that-language-based-discrimination-limits-access-to-mental-health-services\" targettype=\"URL\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eGreene M, Pew T, Ozbay AB, et al. S512 impact of Spanish language outreach on multi-target stool DNA test adherence in a Spanish-speaking population in a federally qualified health center. Am J Gastroenterol. 2024;119(10S). \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.14309/01.ajg.0001031416.71677.5e\u003c/span\u003e\u003cspan address=\"10.14309/01.ajg.0001031416.71677.5e\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eEvon DM, Golin CE, Bonner JE, Grodensky C, Velloza J. Adherence during antiviral treatment regimens for chronic hepatitis C: a qualitative study of patient-reported facilitators and barriers. J Clin Gastroenterol. 2015;49(5):e41\u0026ndash;50. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1097/MCG.0000000000000151\u003c/span\u003e\u003cspan address=\"10.1097/MCG.0000000000000151\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eAmoako A, Ortiz-Paredes D, Engler K, Lebouch\u0026eacute; B, Klein MB. Patient and provider perceived barriers and facilitators to direct acting antiviral hepatitis C treatment among priority populations in high income countries: A knowledge synthesis. Int J Drug Policy. 2021;96:103247. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1016/j.drugpo.2021.103247\u003c/span\u003e\u003cspan address=\"10.1016/j.drugpo.2021.103247\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eDavila YR, Reifsnider E, Pecina I. Familismo: influence on Hispanic health behaviors. Appl Nurs Res. 2011;24(4):e67\u0026ndash;72. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1016/j.apnr.2009.12.003\u003c/span\u003e\u003cspan address=\"10.1016/j.apnr.2009.12.003\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eMortazhejri S, Thomas IM, Patey AM, et al. Perceptions about hepatitis C and barriers and enablers to screening and treatment among Egyptian immigrants to Canada: a theory-informed qualitative study. Int J Equity Health. 2025;24(1):203. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1186/s12939-025-02582-4\u003c/span\u003e\u003cspan address=\"10.1186/s12939-025-02582-4\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eThompson WW, Symum H, Sandul A, et al. Vital Signs: hepatitis C treatment among insured adults - United States, 2019\u0026ndash;2020. MMWR Morb Mortal Wkly Rep. 2022;71(32):1011\u0026ndash;7. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.15585/mmwr.mm7132e1\u003c/span\u003e\u003cspan address=\"10.15585/mmwr.mm7132e1\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eLopez H, Klausner JD, Stafylis C, Re. Racial and sociodemographic disparities in hepatitis C treatment at an urban academic medical center, 2018\u0026ndash;2023. Open Forum Infect Dis. 2025;13(1). \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003e10.1093/ofid/ofaf720\u003c/span\u003e\u003cspan address=\"10.1093/ofid/ofaf720\" targettype=\"DOI\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e.\u003c/span\u003e\u003c/li\u003e \u003cli\u003e\u003cspan\u003eLos Angeles County Department of Public Health. Los Angeles County viral hepatitis action plan. Published 2022. Accessed February 24. 2026. \u003cspan class=\"ExternalRef\"\u003e\u003cspan class=\"RefSource\"\u003ehttp://ph.lacounty.gov/acd/diseases/hepatitis/docs/LACViralHepActionPlan.pdf\u003c/span\u003e\u003cspan address=\"http://ph.lacounty.gov/acd/diseases/hepatitis/docs/LACViralHepActionPlan.pdf\" targettype=\"URL\" class=\"RefTarget\"\u003e\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/li\u003e\u003c/ol\u003e"},{"header":"Tables","content":"\u003cp\u003e\u003cstrong\u003eTable Ⅰ. Demographic Characteristics of Hepatitis C Linkage-to-Cure Contacts (n=344) with HCV RNA-Positive Test Result, Los Angeles County, October 2024 to January 2025\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"624\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eCharacteristics\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eResidents (n=344)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eSex\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Male\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e232 (67%)\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eAge\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; 18-29 years old\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; 30-44 years old\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; 45-64 years old\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; 65+ years old\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e7 (2%)\u003c/p\u003e\n \u003cp\u003e60 (17%)\u003c/p\u003e\n \u003cp\u003e147 (43%)\u003c/p\u003e\n \u003cp\u003e130 (38%)\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eRace/Ethnicity\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Asian\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Hispanic/Latino\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Black\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; White\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Native American/Pacific Islander\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Multirace\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Other or Unknown\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e10 (3%)\u003c/p\u003e\n \u003cp\u003e98 (28%)\u003c/p\u003e\n \u003cp\u003e64 (19%)\u003c/p\u003e\n \u003cp\u003e95 (28%)\u003c/p\u003e\n \u003cp\u003e1 (0%)\u003c/p\u003e\n \u003cp\u003e1 (0%)\u003c/p\u003e\n \u003cp\u003e74 (22%)\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eHealth Insurance\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003ePrivate Insurance\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Medicare\u0026nbsp;\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Medicaid/Medi-Cal\u0026nbsp;\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Other Public-sponsored insurance\u0026nbsp;\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003eNone or Unknown Insurance\u0026nbsp;\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Decline to Answer\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e72 (21%)\u003c/p\u003e\n \u003cp\u003e32 (9%)\u003c/p\u003e\n \u003cp\u003e92 (27%)\u003c/p\u003e\n \u003cp\u003e17 (5%)\u003c/p\u003e\n \u003cp\u003e24 (7%)\u003c/p\u003e\n \u003cp\u003e107 (31%)\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eTreatment Status\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Treated\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e168 (49%)\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eInterest in receiving treatment\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e214 (62%)\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eDid you experience any barriers accessing/attempting to access treatment for Hepatitis C (n=197)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;\u003c/strong\u003eYes\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; No\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Decline to answer\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e106 (54%)\u003c/p\u003e\n \u003cp\u003e65 (33%)\u003c/p\u003e\n \u003cp\u003e26 (13%)\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eSpecific Barriers to Treatment (n=91)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003e\u0026nbsp;Personal\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Not feeling any symptoms of infection\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Not a personal health priority to start treatment\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Concerned about treatment side effects\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Incarceration\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Other health priorities\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Incomplete follow-up\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Unaware of treatment options\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e39 (43%)\u003c/p\u003e\n \u003cp\u003e9\u003c/p\u003e\n \u003cp\u003e12\u003c/p\u003e\n \u003cp\u003e4\u003c/p\u003e\n \u003cp\u003e3\u003c/p\u003e\n \u003cp\u003e6\u003c/p\u003e\n \u003cp\u003e3\u003c/p\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eInsurance (\u003c/strong\u003eUnderinsured/uninsured for treatment)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e12 (13%)\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eProvider-Specific\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Provider did not recommend treatment\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Incomplete follow-up after initial visit\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Wrong lab results\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e28 (31%)\u003c/p\u003e\n \u003cp\u003e12\u003c/p\u003e\n \u003cp\u003e15\u003c/p\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd valign=\"top\" style=\"width: 329px;\"\u003e\n \u003cp\u003e\u003cstrong\u003eAccess to Medical Care\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; I don\u0026rsquo;t have access to a doctor or a specialist who can treat Hepatitis C infection\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Lack of transportation\u003c/p\u003e\n \u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; Other\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd valign=\"top\" style=\"width: 295px;\"\u003e\n \u003cp\u003e12 (13%)\u003c/p\u003e\n \u003cp\u003e7\u003c/p\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003cp\u003e3\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e"}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":true,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":false,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-9025931/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-9025931/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eDiagnosed but untreated chronic Hepatitis C virus (HCV) infection is a major public health problem in Los Angeles (LA) County, particularly among underserved and minority groups. This mixed-methods study (October 2024-January 2025) used de-identified programmatic data from 344 case-residents in a linkage-to-cure program and conducted thematic analysis of semi-structured interviews with ten participants (seven untreated, three treated) from the linkage-to-cure program. By integrating these quantitative and qualitative findings, the study identified community-level and individual barriers and facilitators to HCV treatment. Quantitatively, 54% of case-residents reported barriers, such as personal barriers, provider-specific barriers, insurance barriers, and inadequate access to medical care. Qualitative themes expanded on these findings, identifying homelessness, incarceration, and drug addiction as key personal barriers. Provider-related barriers included language barriers, frustration in navigating the healthcare system, long wait times to see a provider, and participants\u0026rsquo; lack of HCV information. Insurance barriers were characterized by cost barriers and inadequate access to medical care due to a lack of transportation. Facilitators of treatment included personal motivation to seek treatment, family and community-based support systems, trust in their medical provider, adequate insurance coverage, understanding the benefits of HCV treatment, and the desire to avoid stigmatization. Eliminating HCV as a public health problem requires equitable interventions that address individual and system-level barriers. These include implementing language support services, leveraging patient navigation and care coordination services, utilizing mobile clinics for the unhoused, ensuring treatment continuity for people re-entering the community from incarceration, and removing insurance restrictions, such as prior authorization requirements.\u003c/p\u003e","manuscriptTitle":"Barriers and Facilitators to Hepatitis C Virus Treatment in Los Angeles County","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-03-16 17:06:11","doi":"10.21203/rs.3.rs-9025931/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"d1b974db-3dbf-443a-bc02-bae896c4c857","owner":[],"postedDate":"March 16th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-04-27T18:30:39+00:00","versionOfRecord":[],"versionCreatedAt":"2026-03-16 17:06:11","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-9025931","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-9025931","identity":"rs-9025931","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}

Text is read by the "Ask this paper" AI Q&A widget below. Extraction quality varies by source — PMC NXML preserves structure cleanly, OA-HTML may include some navigation residue, and OA-PDF can have broken hyphenation. The publisher copy (via DOI) is the canonical version.

My notes (saved in your browser only)

Ask this paper AI returns verbatim quotes from the full text · source: preprint-html

Answers must be backed by verbatim quotes from this paper's full text. Hallucinated quotes are dropped automatically; if no verbatim passage answers the question, we say so. How this works

Citation neighborhood (no data yet)

We don't have any in-corpus citations linked to this paper yet. This is a recent paper (2026) — citers typically take a year or two to land, and the OpenAlex reference graph may still be filling in.

Source provenance

europepmc
last seen: 2026-05-20T01:45:00.602351+00:00