Obesity’s Disparate Impact on COVID-19 Outcomes in Asian American Patients with Cancer

Obesity’s Disparate Impact on COVID-19 Outcomes in Asian American Patients with Cancer | medRxiv /* */ /* */ <!-- <!-- /*! * yepnope1.5.4 * (c) WTFPL, GPLv2 */ (function(a,b,c){function d(a){return"[object Function]"==o.call(a)}function e(a){return"string"==typeof a}function f(){}function g(a){return!a||"loaded"==a||"complete"==a||"uninitialized"==a}function h(){var a=p.shift();q=1,a?a.t?m(function(){("c"==a.t?B.injectCss:B.injectJs)(a.s,0,a.a,a.x,a.e,1)},0):(a(),h()):q=0}function i(a,c,d,e,f,i,j){function k(b){if(!o&&g(l.readyState)&&(u.r=o=1,!q&&h(),l.onload=l.onreadystatechange=null,b)){"img"!=a&&m(function(){t.removeChild(l)},50);for(var d in y[c])y[c].hasOwnProperty(d)&&y[c][d].onload()}}var j=j||B.errorTimeout,l=b.createElement(a),o=0,r=0,u={t:d,s:c,e:f,a:i,x:j};1===y[c]&&(r=1,y[c]=[]),"object"==a?l.data=c:(l.src=c,l.type=a),l.width=l.height="0",l.onerror=l.onload=l.onreadystatechange=function(){k.call(this,r)},p.splice(e,0,u),"img"!=a&&(r||2===y[c]?(t.insertBefore(l,s?null:n),m(k,j)):y[c].push(l))}function j(a,b,c,d,f){return q=0,b=b||"j",e(a)?i("c"==b?v:u,a,b,this.i++,c,d,f):(p.splice(this.i++,0,a),1==p.length&&h()),this}function k(){var a=B;return a.loader={load:j,i:0},a}var l=b.documentElement,m=a.setTimeout,n=b.getElementsByTagName("script")[0],o={}.toString,p=[],q=0,r="MozAppearance"in l.style,s=r&&!!b.createRange().compareNode,t=s?l:n.parentNode,l=a.opera&&"[object Opera]"==o.call(a.opera),l=!!b.attachEvent&&!l,u=r?"object":l?"script":"img",v=l?"script":u,w=Array.isArray||function(a){return"[object Array]"==o.call(a)},x=[],y={},z={timeout:function(a,b){return b.length&&(a.timeout=b[0]),a}},A,B;B=function(a){function b(a){var a=a.split("!"),b=x.length,c=a.pop(),d=a.length,c={url:c,origUrl:c,prefixes:a},e,f,g;for(f=0;f<d;f++)g=a[f].split("="),(e=z[g.shift()])&&(c=e(c,g));for(f=0;f<b;f++)c=x[f](c);return c}function g(a,e,f,g,h){var i=b(a),j=i.autoCallback;i.url.split(".").pop().split("?").shift(),i.bypass||(e&&(e=d(e)?e:e[a]||e[g]||e[a.split("/").pop().split("?")[0]]),i.instead?i.instead(a,e,f,g,h):(y[i.url]?i.noexec=!0:y[i.url]=1,f.load(i.url,i.forceCSS||!i.forceJS&&"css"==i.url.split(".").pop().split("?").shift()?"c":c,i.noexec,i.attrs,i.timeout),(d(e)||d(j))&&f.load(function(){k(),e&&e(i.origUrl,h,g),j&&j(i.origUrl,h,g),y[i.url]=2})))}function h(a,b){function c(a,c){if(a){if(e(a))c||(j=function(){var a=[].slice.call(arguments);k.apply(this,a),l()}),g(a,j,b,0,h);else if(Object(a)===a)for(n in m=function(){var b=0,c;for(c in a)a.hasOwnProperty(c)&&b++;return b}(),a)a.hasOwnProperty(n)&&(!c&&!--m&&(d(j)?j=function(){var a=[].slice.call(arguments);k.apply(this,a),l()}:j[n]=function(a){return function(){var b=[].slice.call(arguments);a&&a.apply(this,b),l()}}(k[n])),g(a[n],j,b,n,h))}else!c&&l()}var h=!!a.test,i=a.load||a.both,j=a.callback||f,k=j,l=a.complete||f,m,n;c(h?a.yep:a.nope,!!i),i&&c(i)}var i,j,l=this.yepnope.loader;if(e(a))g(a,0,l,0);else if(w(a))for(i=0;i (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];var j=d.createElement(s);var dl=l!='dataLayer'?'&l='+l:'';j.src='//www.googletagmanager.com/gtm.js?id='+i+dl;j.type='text/javascript';j.async=true;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-P4HH5NV'); Skip to main content Home About Submit ALERTS / RSS Search for this keyword Advanced Search Obesity’s Disparate Impact on COVID-19 Outcomes in Asian American Patients with Cancer View ORCID Profile Ryan H. Nguyen , Pankil K. Shah , Sanjay Mishra , Julie Fu , Sonya Reid , Jessica E. Hawley , View ORCID Profile Clara Hwang , Sunny R.K. Singh , Na Tosha Gatson , Narjust Florez , David Chism , Oscar K. Serrano , Babar Bashir , View ORCID Profile Gayathri Nagaraj , Rana R. Mckay , Brandon Hayes-Lattin , View ORCID Profile Vadim S Koshkin , Jared D. Acoba , Olga Zamulko , Christoper L. Geiger , Jeremy L. Warner , Dimpy P. Shah , Neeta K. Venepalli the COVID-19 and Cancer Consortium doi: https://doi.org/10.1101/2025.05.14.25327577 Ryan H. Nguyen 1 University of Illinois at Chicago DO Find this author on Google Scholar Find this author on PubMed Search for this author on this site ORCID record for Ryan H. Nguyen For correspondence: Rnguye8{at}uic.edu ShahP1{at}uthscsa.edu Pankil K. Shah 2 University of Texas Health San Antonio MD, PhD Find this author on Google Scholar Find this author on PubMed Search for this author on this site For correspondence: Rnguye8{at}uic.edu ShahP1{at}uthscsa.edu Sanjay Mishra 3 Vanderbilt University Medical Center 4 Lifespan Cancer Institute 5 Brown University PhD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Julie Fu 6 Mass General Hospital Emerson Cancer Center MD, MA Find this author on Google Scholar Find this author on PubMed Search for this author on this site Sonya Reid 3 Vanderbilt University Medical Center MD, MPH Find this author on Google Scholar Find this author on PubMed Search for this author on this site Jessica E. Hawley 7 University of Washington MD, MS Find this author on Google Scholar Find this author on PubMed Search for this author on this site Clara Hwang 8 Henry Ford Cancer Institute MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site ORCID record for Clara Hwang Sunny R.K. Singh 8 Henry Ford Cancer Institute 9 University of Arkansas for Medical Sciences MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Na Tosha Gatson 10 Geisinger Health System 11 Banner MD Anderson Cancer Center MD, PhD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Narjust Florez 12 Dana Farber Cancer Center MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site David Chism 13 Thompson Cancer Survival Center MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Oscar K. Serrano 14 Hartford HealthCare Cancer Institute MD, MBA Find this author on Google Scholar Find this author on PubMed Search for this author on this site Babar Bashir 15 Sidney Kimmel Cancer Center at Thomas Jefferson University MD, MS Find this author on Google Scholar Find this author on PubMed Search for this author on this site Gayathri Nagaraj 16 Loma Linda University Cancer Center MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site ORCID record for Gayathri Nagaraj Rana R. Mckay 17 University of California, San Diego Find this author on Google Scholar Find this author on PubMed Search for this author on this site Brandon Hayes-Lattin 18 Knight Cancer Institute at Oregon Health and Science University MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Vadim S Koshkin 19 University of California San Francisco Find this author on Google Scholar Find this author on PubMed Search for this author on this site ORCID record for Vadim S Koshkin Jared D. Acoba 20 University of Hawaii Find this author on Google Scholar Find this author on PubMed Search for this author on this site Olga Zamulko 21 University of Cincinnati Cancer Center MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Christoper L. Geiger 22 University of Colorado School of Medicine MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Jeremy L. Warner 3 Vanderbilt University Medical Center 4 Lifespan Cancer Institute 5 Brown University MD, MS Find this author on Google Scholar Find this author on PubMed Search for this author on this site Dimpy P. Shah 2 University of Texas Health San Antonio MD, PhD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Neeta K. Venepalli 23 University of North Carolina at Chapel Hill School of Medicine MD, MBA Find this author on Google Scholar Find this author on PubMed Search for this author on this site Abstract Full Text Info/History Metrics Data/Code Preview PDF Abstract Data on COVID-19 outcomes in Asian Americans and Pacific Islanders (AAPI) are lacking. We analyzed data from 6,244 patients from the COVID-19 and Cancer Consortium, including 6.0% AAPI patients, to examine disparities in outcomes following acute COVID-19. Despite AAPI patients having lower median BMI than non-Hispanic White (NHW) patients and higher diabetes rates, both groups showed similar 30-day mortality and COVID-19 outcomes. In multivariable analyses, morbid obesity (BMI >35 kg/m 2 ) in AAPI patients was associated with significantly higher 30-day mortality (OR 4.96; 95% CI 1.78 – 13.88) and COVID-19 severity (OR 2.6; 95% CI 1.26 – 5.35); underscoring the differential impact of obesity in AAPI patients. Introduction Asian Americans and Pacific Islanders (AAPI) comprise one of the fastest-growing racial and ethnic groups in the US 1 . Yet, there is a paucity of published data on COVID-19-specific outcomes in this population. 2 Immunocompromised patients, including those with cancer, are at higher risk of COVID-19 infection and severe disease. 3 This novel study examines clinical characteristics and factors associated with disparate outcomes in AAPI patients compared to NHW patients with cancer and COVID-19. Methods Study Population and Data Sources The COVID-19 and Cancer Consortium (CCC19) registry captures rapid, systematic, and detailed clinical characteristics, course of illness, and outcomes of COVID-19 among patients with cancer. In this registry-based, retrospective cohort study, we examined all reports of laboratory-confirmed SARS-CoV-2 infection submitted to the CCC19 registry between March 17, 2020, and December 31, 2021, for US residents with current or past diagnosis of cancer and Non-Hispanic AAPI or Non-Hispanic White (NHW) race and ethnicity. We described demographics, comorbidities, tumor characteristics, and baseline severity of infection, stratified by AAPI and NHW groups. We also assessed outcomes such as 30-day mortality rate, mechanical ventilation use (MV), intensive care unit admission (ICU), and hospitalization and a 5-level ordinal scale of COVID-19 severity based on the patient’s most severe disease status: (1) none of the complications listed here, (2) hospital admission, (3) intensive care unit admission, (4), mechanical ventilation use, and (5) death from any cause. All clinical outcomes were all-cause in adult patients with cancer and laboratory-confirmed SARS-CoV-2. Using multiple imputations (m=10) to account for missingness of less than 5% in independent variables, we built unadjusted, minimally adjusted, and fully adjusted logistic regression models to estimate the association of the prior selected demographic and clinical variables on 30-day all-cause mortality and the ordinal severity outcome. The e-value-based sensitivity analysis was used to assess the potential effect of unmeasured confounding 4 . The analysis was conducted using R version 4.4.0 (2024). This study ( NCT04354701 ) was approved by the Vanderbilt University Medical Center institutional review board and participating sites. A list of participating sites and the data dictionary are available at www.ccc19.org . Results Patient characteristics From 6244 patients included in the analysis, 372 (6.0%) were AAPI, and 5872 (94.0%) were NHW ( table 1 ). The median (IQR) age at COVID-19 diagnosis was 64 (53-73) for AAPI and 67 (57-77) for NHW. Female sex was 55.6% for AAPI and 51.1% for NHW. At the time of COVID-19 diagnosis, AAPI had lower rate of comorbidities, including pulmonary (14.5% vs 21.1%), cardiovascular (21.8% vs. 33.4%), and lower BMI measured as kg/m 2 (median 25.1 vs 28.1) and smoking history (current or former smoker 30.4% vs. 49.0%) while having higher rates of diabetes (32.0% vs. 22.9%) compared with NHW. Tumor type, cancer status, type of cancer treatment, and timing of systemic therapy relative to COVID-19 diagnosis were similar between the two groups. AAPI were primarily located in the US West (44.6%) and Northeast (32.3%) regions in urban (42.5%) and suburban (34.9%) areas. View this table: View inline View popup Table 1. Baseline characteristics of AAPI and NHW with cancer diagnosed with COVID-19. AAPI = Asian American and Pacific Islander, NHW = non-Hispanic White, BMI = body mass index, ECOG PS = eastern cooperative oncology group performance status, US = United States. COVID-19 Related Clinical Outcomes, Complications, Interventions Clinical outcomes for 30-day mortality (11.0% vs 11.8%), mechanical ventilation [MV] (6.7% vs 8.4%), hospitalization (56.7% vs 53.2%), and ICU admission (14.0% vs 14.7%) were not statistically different between AAPI and NHW (supplementary figure 1). Consistent with the unadjusted and minimally adjusted models, the fully adjusted models showed that AAPI race and morbid obesity had a significant interaction effect that increased the odds of both 30-day mortality (OR, 4.96, 95% CI, 1.78-13.88) and COVID-19 severity (OR, 2.6, 95% CI, 1.26-5.35) outcomes ( table 2 ). The E-value-based sensitivity analysis for the 30-day mortality outcome showed that an unadjusted factor would need to be associated with both mortality and being morbidly obese AAPI with an OR of at least 2.95 to attenuate the significance of the observed association. Similarly, the E-value-based sensitivity analysis for the ordinal severity outcome showed that an unadjusted factor would need to be associated with both severity and being morbidly obese AAPI with an OR of at least 1.84 to attenuate the significance of the observed association. Most documented associations in the CCC19 cohort have been smaller than the reported E-value. In the stratified models, morbid obesity was associated with significantly higher 30-day mortality among AAPI patients (OR, 7.25, 95% CI, 2.28 - 22.99), but it was not associated with higher mortality among NHW patients (OR, 0.92, 95% CI, 0.71 - 1.19) ( Figure 1 ) 5 . Similarly, morbid obesity was also associated with significantly higher COVID-19 severity among AAPI patients (OR, 3.35, 95% CI, 1.55 - 7.2); however, not among NHW patients (OR, 0.92, 95% CI, 0.94 - 1.25). ( Figure 1 ) View this table: View inline View popup Download powerpoint Table 2: Multivariable regression models of AAPI and NHW with cancer diagnosed with COVID-19. AAPI = Asian American and Pacific Islander, NHW = Non-Hispanic White. Download figure Open in new tab Figure 1: Forest plot of model coefficients for 30-day mortality and ordinal severity scale stratified by race Discussion This retrospective cohort study is unique in evaluating COVID-19 illness and outcomes in the context of AAPI patients with cancer. Despite lower rates of comorbidities in AAPI patients, we found similar rates of COVID-19 clinical outcomes among the overall population of AAPI and NHW patients. However, morbid obesity had significant interaction with race and AAPI patients with morbid obesity experiencing significantly worse COVID-19 severity and 30-day mortality; while NHW patients with morbid obesity did not. The scarcity of AAPI-specific data highlights the need for further research to comprehend unique risks and vulnerabilities in this fast-growing demographic. Cancer is the primary cause of death for both male and female AAPI individuals, while heart disease is the leading cause for all other major racial and ethnic groups in the US. 6 , 7 Several factors contribute to cancer-related disparities among Asian Americans, including differences in infections, exposure to carcinogens, tumor biology 8 , and lower cancer screening rates 6 . This is despite Asian Americans having higher median household incomes, reduced poverty rates, and greater college education levels compared to the general US population. 1 Data equity challenges also exist, stemming from the underreporting of AAPI individuals in health records due to inadequate collection and reporting of race and ethnicity. This issue is exacerbated by the aggregation of all Asian ethnic groups into a single race category or “other race.” 9 There is a dearth of AAPI-specific data related to COVID-19 outcomes. Early COVID-19 pandemic reports from San Francisco and New York showed higher than expected infection rates and higher mortality in AAPI compared to NHW individuals. 10 , 11 National reports have suggested similar findings of higher mortality from COVID-19 among Asian Americans, but have been limited by lower proportions of Asian Americans in the databases compared to their relative U.S. population. 12 The American Heart Association registry reported AAPI patients hospitalized with COVID-19 were significantly younger than NHW, due to higher rates of obesity and diabetes. 13 Our study showed that AAPI patients with cancer were more likely to reside in urban settings and Western and Northeastern regions, be ‘never smokers’, and have fewer comorbidities except for diabetes. Although rates of obesity are lower in the AAPI population compared to other racial groups, the rates are rising, especially in 2nd and 3rd generations. 14 Importantly, while we observed similar rates of 30-day mortality, hospitalizations, mechanical ventilation, and ICU admissions in AAPI and NHW patients, we noted morbid obesity in AAPI patients to significantly increase the risk of 30-day mortality and COVID-19 severity. These results suggest that morbid obesity may be associated with worse clinical consequences in AAPI patients. AAPI patients have equivalent rates of type 2 diabetes and metabolic syndrome at lower BMI cutoffs compared to NHW patients, suggesting that the burden of obesity-related disease in AAPI populations may be underreported. 15 Several organizations including the WHO recommend lower BMI cutoffs for obesity in Asian populations (BMI >25 or >27.5) to account for this increased risk. 16 We analyzed clinical outcomes for NHW and AAPI patients by varying BMI cut-offs (25, 30, 35) and found the subgroup of AAPI patients with BMI >35 had the highest rates of 30-day mortality, hospitalization, ICU admission, and mechanical ventilation. Etiologies for the increased amount of obesity related complications such as diabetes among AAPI patients include decreased physical activity, high carbohydrate intake, acculturation with higher rates of obesity and diabetes among successive generations in the US. 16 Within AAPI grouping, some studies have reported heterogeneity in diabetes-related mortality, with Filipino patients experiencing the greatest burden. 17 Additionally, when adjusted for age, BMI, and total fat mass, Chinese and South Asian patients have significantly more visceral adipose tissue than White counterparts. 18 Additionally, obesity is recognized as a risk factor for hospitalization and death due to COVID-19 in the general population. 19 While the exact reasons for the differential impact of obesity in AAPI compared to NHW patients remain unclear, our results highlight the importance of considering race- and ethnicity-specific factors when addressing health disparities. This study is, to our knowledge, the largest cohort of AAPI patients with COVID-19 and cancer. Other strengths include representation from academic and community cancer centers across the US, and systematically collected granular data on characteristics, presentations, and outcomes of patients with cancer and COVID-19. Limitations include incomplete documentation of race and ethnicity in the electronic health records from which these data are derived, including a lack of subcategorization of race and ethnicity beyond Office of Management and Budget minimums. Cases for CCC19 were entered by self-selecting cancer centers and may not represent the broader population, however the distribution of sites throughout the country makes this the largest report of AAPI patients with cancer and COVID-19. Lastly, CCC19 does not collect detailed data on social determinants of health given the lack of these data in electronic health records. Further research is necessary on the specific cultural and social determinants of health factors which account for the differences in AAPI subgroups. Conclusions Despite similar clinical outcomes related to COVID-19, morbid obesity was associated with substantially worse outcomes for AAPI patients compared to NHW patients. Additional investigation is required to uncover unique mechanisms driving the disparate impact of obesity in AAPI communities and to bridge the gaps in health data collection and reporting for this critically understudied population. Data Availability Data from the CCC19 is available in aggregate, de-identified format at https://ccc19.org/data.html https://ccc19.org/data.html Acknowledgement We thank all members of the CCC19 steering committee: Toni K Choueiri, MD; Dimitrios Farmakiotis, MD, FACP, FIDSA; Narjust Florez, MD; Corrie A. Painter, PhD; Solange Peters, MD, PhD; Petros Grivas, MD, PhD; Gilberto de Lima Lopes Jr, MD, MBA, FAMS, FASCO; Sonya A. Reid, MD, MPH; Dimpy P. Shah, MD, PhD; Michael Thompson, MD, PhD, FASCO; Jeremy L. Warner, MD, MS, FAMIA, FASCO; for their invaluable guidance of the CCC19 consortium. Footnotes ↵ † Co-first authors ↵ ‡ Co-last authors Research support: REDCap is developed and supported by the Vanderbilt Institute for Clinical and Translational Research (grant UL1 TR000445 from the National Center for Advancing Translational Sciences, National Institutes of Health). This work was supported in part by Henry Ford Cancer Institute. RHN is a Recipient of the Robert A. Winn Diversity in Clinical Trials Career Development Award, funded by Bristol Myers Squibb Foundation. This study was partly supported by grants from the American Cancer Society and Hope Foundation for Cancer Research (No. MRSG-16-152-01 -CCE to DPS); the National Cancer Institute (grant number P30CA054174 to DPS and PKS); the National Center for Advancing Translational Sciences, National Institutes of Health, through Grant KL2 TR002646 to PKS. This study was partly supported by grants from the National Cancer Institute [grant number P30 CA068485 to Vanderbilt University Medical Center. The funding sources had no role in the writing of the manuscript of the decision to submit it for publication. Competing Interests The authors declare no competing financial interests. References 1. ↵ Budiman A , Ruiz N. Key facts about Asian Americans, a diverse and growing population . Accessed March 30, 2022 , 2022 . https://www.pewresearch.org/fact-tank/2021/04/29/key-facts-about-asian-americans/ 2. ↵ Yi SS , Đoàn LN , Choi JK , et al. 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Your Personal Message CAPTCHA This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. Share Obesity’s Disparate Impact on COVID-19 Outcomes in Asian American Patients with Cancer Ryan H. Nguyen , Pankil K. Shah , Sanjay Mishra , Julie Fu , Sonya Reid , Jessica E. Hawley , Clara Hwang , Sunny R.K. Singh , Na Tosha Gatson , Narjust Florez , David Chism , Oscar K. Serrano , Babar Bashir , Gayathri Nagaraj , Rana R. Mckay , Brandon Hayes-Lattin , Vadim S Koshkin , Jared D. Acoba , Olga Zamulko , Christoper L. Geiger , Jeremy L. Warner , Dimpy P. Shah , Neeta K. Venepalli medRxiv 2025.05.14.25327577; doi: https://doi.org/10.1101/2025.05.14.25327577 Share This Article: Copy Citation Tools Obesity’s Disparate Impact on COVID-19 Outcomes in Asian American Patients with Cancer Ryan H. Nguyen , Pankil K. Shah , Sanjay Mishra , Julie Fu , Sonya Reid , Jessica E. Hawley , Clara Hwang , Sunny R.K. Singh , Na Tosha Gatson , Narjust Florez , David Chism , Oscar K. Serrano , Babar Bashir , Gayathri Nagaraj , Rana R. Mckay , Brandon Hayes-Lattin , Vadim S Koshkin , Jared D. Acoba , Olga Zamulko , Christoper L. Geiger , Jeremy L. Warner , Dimpy P. Shah , Neeta K. Venepalli medRxiv 2025.05.14.25327577; doi: https://doi.org/10.1101/2025.05.14.25327577 Citation Manager Formats BibTeX Bookends EasyBib EndNote (tagged) EndNote 8 (xml) Medlars Mendeley Papers RefWorks Tagged Ref Manager RIS Zotero Tweet Widget Facebook Like Google Plus One Subject Area Oncology Subject Areas All Articles Addiction Medicine (567) Allergy and Immunology (863) Anesthesia (297) Cardiovascular Medicine (4411) Dentistry and Oral Medicine (443) Dermatology (380) Emergency Medicine (606) Endocrinology (including Diabetes Mellitus and Metabolic Disease) (1505) Epidemiology (15205) Forensic Medicine (30) Gastroenterology (1119) Genetic and Genomic Medicine (6574) Geriatric Medicine (666) Health Economics (994) Health Informatics (4511) Health Policy (1365) Health Systems and Quality Improvement (1608) Hematology (537) HIV/AIDS (1263) Infectious Diseases (except HIV/AIDS) (15903) Intensive Care and Critical Care Medicine (1103) Medical Education (620) Medical Ethics (144) Nephrology (666) Neurology (6573) Nursing (345) Nutrition (998) Obstetrics and Gynecology (1139) Occupational and Environmental Health (954) Oncology (3319) Ophthalmology (968) Orthopedics (369) Otolaryngology (420) Pain Medicine (435) Palliative Medicine (129) Pathology (662) Pediatrics (1689) Pharmacology and Therapeutics (691) Primary Care Research (710) Psychiatry and Clinical Psychology (5422) Public and Global Health (9205) Radiology and Imaging (2191) Rehabilitation Medicine and Physical Therapy (1367) Respiratory Medicine (1191) Rheumatology (593) Sexual and Reproductive Health (709) Sports Medicine (529) Surgery (709) Toxicology (99) Transplantation (288) Urology (265) (function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'9feada0b3dd6aa64',t:'MTc3OTI3NDk3Mw=='};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();