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Evaluating Patient Experience in a Rural-Serving Nephrology Clinic: Psychometric assessment of the consideRATE questions and assessment of care experience | 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 Evaluating Patient Experience in a Rural-Serving Nephrology Clinic: Psychometric assessment of the consideRATE questions and assessment of care experience View ORCID Profile Joseph P. Nano , Anji Zhu , Rhea Sachdeva , Ann M. O’Hare , Annika Milliman , Clay A. Block , Glyn Elwyn , JoAnna K. Leyenaar , Lorraine Gerraughty , Meredith A. MacMartin , Nicholas M. Fuller , Steven L. Bernstein , Vanessa L. Junkins , Catherine H. Saunders doi: https://doi.org/10.1101/2025.04.27.25326517 Joseph P. Nano 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MS MPH Find this author on Google Scholar Find this author on PubMed Search for this author on this site ORCID record for Joseph P. Nano Anji Zhu 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA MPH Find this author on Google Scholar Find this author on PubMed Search for this author on this site Rhea Sachdeva 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA MPH Find this author on Google Scholar Find this author on PubMed Search for this author on this site Ann M. O’Hare 3 University of Washington , Seattle, WA, USA MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Annika Milliman 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA Find this author on Google Scholar Find this author on PubMed Search for this author on this site Clay A. Block 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MD MS Find this author on Google Scholar Find this author on PubMed Search for this author on this site Glyn Elwyn 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MD PhD Find this author on Google Scholar Find this author on PubMed Search for this author on this site JoAnna K. Leyenaar 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MD PhD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Lorraine Gerraughty 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MHA RN Find this author on Google Scholar Find this author on PubMed Search for this author on this site Meredith A. MacMartin 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MD MS Find this author on Google Scholar Find this author on PubMed Search for this author on this site Nicholas M. Fuller 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA Find this author on Google Scholar Find this author on PubMed Search for this author on this site Steven L. Bernstein 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MD Find this author on Google Scholar Find this author on PubMed Search for this author on this site Vanessa L. Junkins 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA MBA RN Find this author on Google Scholar Find this author on PubMed Search for this author on this site Catherine H. Saunders 1 Dartmouth Geisel School of Medicine , Hanover, NH, USA 2 Dartmouth Hitchcock Medical Center , Lebanon, NH, USA PhD MPH Find this author on Google Scholar Find this author on PubMed Search for this author on this site For correspondence: catherinehylassaunders{at}gmail.com Abstract Full Text Info/History Metrics Data/Code Preview PDF Abstract Background The illness experiences of people with kidney disease are not systematically ascertained as part of clinical care. We conducted the first real-world psychometric evaluation of the conside RATE questions among patients with kidney disease and assessed healthcare experiences in a rural hospital setting. Methods We conducted a cross-sectional survey with a sample of patients with kidney disease and their care partners. Our survey consisted of demographic questions, conside RATE (8-items) to measure healthcare experience, and CANHELP-Lite (21-items) as a reference for conside RATE psychometric assessment. We scored conside RATE as continuous (range: 1-4) and top-box (score=4). We conducted internal reliability (Cronbach’s alpha) and validity (convergent and discriminant using Pearson’s correlation) tests. We compared mean conside RATE scores between paired subgroups using t-tests. We examined the relationship between rurality and healthcare experience using a multivariable linear regression model and rural-urban commuting area codes. Results We recruited 163 participants, including 52 who lived in rural areas. The mean conside RATE score was 3.65 (SD=0.42), and the top-box score was 35% (n=59). Internal consistency for conside RATE was 0.86. We demonstrated convergent validity (continuous: r=0.5, p<0.001 and top-box: r=0.3, p0.05 and top-box: r=0.1, p>0.05). Subgroup analyses revealed no significant differences in overall conside RATE scores by rurality status, state of residence, travel time, and gender. After adjustment for demographics, lower continuous mean conside RATE scores were significantly associated with longer travel time to the clinic (p<0.01), religious affiliation (p<0.05), and age over 55 years (p<0.01). We found no significant association between total conside RATE score and rurality. Conclusion We found validity in the first real-world psychometric assessment of conside RATE among people with kidney disease and found associations between healthcare experience and various demographic variables. Background With population growth and aging, patients with serious illnesses, such as cancer, heart disease, and chronic kidney disease (CKD), have unmet needs that affect the quality of their care and their experiences of illness and care. 1 , 2 Approximately 35.5 million adults in the United States (US) (more than 1 in 7 US adults) and over 700 million people globally (10% of the world population) are affected by CKD. 3 , 4 CKD is a costly, resource intensive disease to manage. 4 In 2019, treatment for Medicare beneficiaries with CKD cost $87.2 billion even without including the costs for dialysis or transplant. 4 CKD is often a silent disease until advanced stages when patients experience a variety of symptoms that affect their health-related quality of life. 5 , 6 Furthermore, patients with kidney disease, along with their care partners, may face many barriers to receiving healthcare services particularly in rural areas, such as frequent follow-up appointments, long-distance travel, and the financial burden associated with treatments and related expenses. 7 , 8 This population is often underrepresented in research, with most studies focusing on urban-rural settings outside of the United States. 9 , 10 As a result, less is known about the healthcare experiences and needs of rural patients with CKD. Patient-reported experience measures (PREMs) provide a means to capture objective accounts of patients’ experiences and their satisfaction with care. 11 – 13 PREMs are increasingly utilized to monitor experiences in various populations because they provide valuable insights into the patient’s perspective on their health, treatment, and overall well-being. 11 , 12 This is important because better patient experience has been linked to improved clinical outcomes, including greater adherence to treatment, reduced hospital readmissions, and higher quality of care. 14 Furthermore, increased patient engagement can empower patients to self manage conditions and positively impact clinical and financial outcomes by improving clinical care benchmarks and reducing costly resource utilization. The conside RATE questions, a measure of serious illness care experience, provide meaningful measurement of patient-reported experiences and can help to identify opportunities to improve the experience of patients and care partners, across the illness trajectory. 15 Unlike other measures (e.g., the CANHELP Lite measure), the conside RATE questions are a novel, patient-centered tool with a short completion time. 15 – 19 This tool was validated in both a simulated online setting and among patients with cancer. 16 , 19 Furthermore, the conside RATE questions have the potential to enhance routine care for patients with kidney disease through providing valuable real-time feedback to care teams, helping to inform and improve care delivery. 15 , 19 , 20 There are significant gaps in the literature regarding the association between rurality and patient experience. For example, while several studies have investigated patient experiences in rural and urban areas, the findings have been inconsistent. 21 – 24 Furthermore, the real-world psychometric properties of the conside RATE questions in non-cancer clinical settings and populations—such as patients with kidney disease—remain unknown. To address these gaps, we conducted a study to examine the association between rurality and patient experience in a rural-serving clinic in the US. This is also the first real-world assessment of the psychometric properties of conside RATE in a population with kidney disease. We hypothesized that healthcare experience will vary across rurality status due to geographic isolation, limited financial resources, and lower socioeconomic status. Materials and Methods Design We conducted a single-time point cross-sectional survey among a convenience sample of patients and their care partners attending a single nephrology clinic at Dartmouth-Hitchcock Medical Center (DHMC), located in Lebanon, NH. DHMC is a tertiary care center located in rural Northern New England, and is also New Hampshire’s only academic medical center. The Dartmouth Health Institutional Review Board (IRB) approved this study in May 2023 [IRB ID: 02000560]. We reported results using the Checklist for Reporting of Survey Studies (CROSS). Participants We included patients or care partners visiting the nephrology clinic at Dartmouth-Hitchcock Medical Center in Lebanon, New Hampshire, which serves a largely rural population. Participants were required to be older than 18, be able to read English, and provide written informed consent to participate in the study. Some participant responses were excluded from the final analysis due to interruptions in completing the measures in the waiting room of the nephrology clinic. Survey validation Using Qualtrics, an online survey platform, we designed a 15-minute survey consisting of 51 questions. The survey included a demographic survey, the conside RATE questions, and the CANHELP Lite questionnaire. 18 We designed the survey and analytic plan based on a previously conducted online validation study, which assessed reliability and (convergent, discriminative, and divergent) validity. 16 Before distributing the survey to participants, we piloted the survey with members of our team to ensure it was functioning well and to identify and address any technical, design or clarity issues. Survey elements Demographic Survey Our survey consisted of demographic questions (checkbox), such as identity (patient or accompanying care partner), age, race, gender, ethnicity, disease stage (eGFR), rurality, and list of comorbidities (self-reported by respondents) ( Table 1 ). View this table: View inline View popup Table 1. Psychometric tests using overall instrument scoring 1 The consideRATE questions The conside RATE is an 8-item self-reported measure of serious illness care experiences for patients and their care partners that can be administered in various clinical settings, such as outpatient, inpatient, and home care. 15 The first seven questions are scored on a four-point Likert-like scale (1 = very bad, 2 = bad, good = 3, and 4 = very good) and the last question is an open-ended question. We excluded an optional ninth-item regarding desired anonymity as it was inappropriate in a research versus quality improvement context. CANHELP Lite CANHELP Lite (Canadian Health Care Evaluation Project) is a 21-item patient-facing and validated measure of serious illness care experience that is scored on a five-point Likert scale (1 = Not at all, 2 = Not very, 3 = Somewhat, 4 = Very, and 5 = Completely). 18 We selected CANHELP Lite for consistency as we used this instrument in two previous consideRATE validation studies for cancer patients and older adults. We conducted the previous two validation studies of consideRATE, in older adults, and cancer patients, using this instrument. 16 , 19 We used CANHELP Lite as a continuous measure for the psychometric assessment of conside RATE given the similarity in response options. Procedures Between February 2024 and October 2024, we recruited patients with kidney disease and care partners or family members who accompanied patients. Using convenience sampling, we randomly approached participants after they checked in at the nephrology clinic main desk. Our recruitment team explained the purpose of the study, answered questions, and obtained verbal and written consent before providing the survey. Statistical analysis We used Microsoft Excel to perform data cleaning and conducted statistical analyses using R-Studio statistical software (version 1.3.959, 2009–2020 R-Studio, PBC). In the first phase of analysis, we used simple descriptive statistics to summarize the demographics of the sample. In the second phase of analysis, we validated our conside RATE measure in the kidney disease population by testing reliability, convergent validity, and discriminant validity. We defined weak correlation as less than r=0.3, moderate between r=0.3 to r=0.7, and strong correlation as at least r=0.7. 25 Third, we fitted a multivariable regression model to identify predictors of healthcare experience using conside RATE for healthcare experience, Rural-Urban Commuting Area (RUCA) codes, and other demographic variables. We assigned RUCA codes to participants based on their residential ZIP codes, allowing us to assess the impact of rurality on healthcare experiences. We classified rurality based on the Rural Urban Commuting Area four-tier classification schema: Metropolitan area, Micropolitan area, Small town area, and Rural area. 26 The model was adjusted for key demographic characteristics such as age, gender, race/ethnicity, education, and travel time to the clinic. We set the significance level at α = 0.05 and did not adjust for multiple comparisons, as this was an exploratory analysis. Fourth, we conducted a content analysis of participants’ responses to the conside RATE open-ended question. Psychometric assessment of consideRATE I. Overall Instrument Scoring We used two scoring approaches to test the convergent validity of the conside RATE questions that were performed in previous studies: continuous scoring and top-box scoring. For the continuous scoring approach, we used the original conside RATE four-point and CANHELP Lite five-point scales and calculated mean scores for both measures across all items (seven-items for conside RATE and 21-items for CANHELP Lite). Then we compared the mean score of conside RATE with the mean score of CANHELP Lite for each participant. II. Top-box Scoring For top-box scoring, we dichotomized the conside RATE overall mean score (1 = “very good”; 0 = “good” or “bad” or “very bad”). We compared the top-box dichotomized conside RATE overall mean score with the original continuous CANHELP Lite scoring using a point-biserial correlation test. III. Item-by-item Scoring To perform item-by-item convergent validity tests, we used a similar approach that we performed in a previous validation study, in which we conducted Pearson’s correlation tests on the matched individual items using the conside RATE scale to items on the CANHELP Lite scale. 19 For discriminant validity tests, we identified a measure that is conceptually distinct from the serious illness experience measured in conside RATE, the validated Single-item Health Literacy (SILs) measure. 27 – 30 This instrument asks “How confident are you in filling out medical forms by yourself?” and offers the following response options: “Extremely”, “Quite a bit”, “Somewhat”, “A little bit”, “Not at all.” We selected SILs because it does not directly address conside RATE constructs and does not overlap conceptually with any of the seven conside RATE questions. We conducted Pearson’s correlation tests between the conside RATE scale and SILs measure. We expected moderate to strong significant correlations for convergent validity and weak correlations to no correlation for discriminant validity. 25 IV. Reliability We conducted a reliability test on the conside RATE questions using the Cronbach alpha reliability test. We considered “good” internal consistency for Cronbach’s alpha score to be 0.7 or higher. 31 Subgroup analysis We used t-tests to compare mean conside RATE scores between four paired subgroups based on state of residence (New Hampshire vs. Vermont), reason for visit (CKD vs transplant patient or other), participant’s identity (patient vs. care partner), travel time (less than 60 minutes vs at least 60 minutes), and Rurality status (rural area vs non-rural residing area). We selected these characteristics for subgroup analysis because they were the most commonly reported across participants. Characteristics with very few responses (e.g., for state, we excluded Maine = 2 and New York = 1) were excluded from subgroup comparisons to avoid unreliable estimates. Multivariable Regression Model We investigated predictors of healthcare experience by exploring factors associated with participants’ healthcare experience as measured by the conside RATE tool using two approaches: (1) using the total conside RATE score as the dependent variable and (2) using the conside RATE score per item as the dependent variable (e.g., “Physical problems” item, “Emotional problems” item, “What matters most” item, “Surroundings” item). First, we used a linear regression model for the continuous total conside RATE score. Second, given that the conside RATE measure consists of seven items, each capturing a distinct aspect of the patient healthcare experience, we conducted a series of linear regression models across each item to investigate associations between each item with various demographic and clinical characteristics. We selected covariates by known associations between healthcare experience and rurality based on previous literature conducted outside of the United States. 21 , 22 , 24 We investigated whether “distance traveled” is a confounding variable for the association between healthcare experience and independent variables before including it as a covariate. 32 , 33 We checked for multicollinearity of the model using Variance Inflation Factor (VIF). We found the adjusted generalized standard error inflation factor (aGSIF) across variables to range between 1.06 and 1.16, which shows that the model’s coefficient estimates are stable and reliable. ConsideRATE: Open-ended question We conducted a qualitative content analysis to examine participants’ responses to the conside RATE open-ended question in our survey. Two researchers (AZ and RS) read responses and captured key concepts independently. Using an inductive approach, both researchers applied categorical codes to extract meaning from the text. We synthesized and refined codes into broader categories. We reviewed categories to ensure they were consistent with the coded data and accurately represented the overall dataset. Differences in interpretation were resolved by discussion. Results Descriptive Statistics We approached 312 potential participants and 256 participants agreed to participate. A total of 163 (52%) of those approached had time to provide informed consent and complete the survey ( conside RATE mean score = 3.65, SD = 0.42). Of these, 111 (68%) reported that they reside in non-rural areas (mean score = 3.68, SD = 0.40) and 52 (32%) in rural areas (mean score = 3.61, SD = 0.41) ( Table 1 ) ( Supplementary 1 ). Approximately 45% (n = 69) reported visiting nephrology clinics for a “chronic kidney disease” appointment, 13% (n = 20) for “transplant or follow up”, and 42% (n = 64) “other” (e.g., first appointment, referral). Most study participants were patients (n=128, 79%) and the remainder were family members or care partners (n=30, 18%). Approximately half of the participants were female (n=93, 57%) and most identified as white or Caucasian (n=156, 96%) ( Table 1 ) and non-Hispanic (n=161, 99%). Over half of the participants (n=85, 52%) were aged between 55–74 years, (n=29, 18%) 75+ years, with a minority (n=8, 5%) aged 18–34 years old. Among participants who reported residing in rural areas, approximately 20% reported traveling 31 to 60 minutes for care, while 6% traveled longer than 60 minutes ( Table 1 ). Psychometric assessment of consideRATE Overall instrument: Convergent validity Among all participants, we found a statistically significant moderate correlation (r=0.5; p <0.001) between the overall continuous scores of the conside RATE questions and CANHELP Lite, indicating adequate convergent validity ( Table 2 ). For top-box scoring among all participants, we found a statistically significant moderate correlation (r pb =0.3; p <0.001) between the overall top-box scoring of the conside RATE questions and the CANHELP Lite continuous scores, indicating adequate convergent validity ( Table 2 ). In subgroup analyses, we found moderate to strong correlations between conside RATE scores and CANHELP Lite scores in patients, care partners, those with low-income, those with low educational attainment, those residing in rural areas, those visiting for CKD appointments, and those identified as transplant patients. These correlations indicate strong convergent validity for continuously-scored conside RATE for these select groups (r range: 0.6 to 0.8, p<0.001) and top-box (r range: 0.4 to 0.6, p<0.01) ( Table 2 ) scores. View this table: View inline View popup Download powerpoint Table 2. Psychometric tests using overall instrument scoring 1 Item-by-item scoring: Convergent and Discriminant Validity Among all participants, we found moderate statistically significant correlations ranging from r=0.3 ( p <0.001) to 0.5 ( p <0.001) across all individual matched conside RATE continuous scoring and CANHELP Lite items, indicating moderate convergent validity ( Table 3 ). For top-box scoring among all participants, we found moderate statistically significant correlations ranging from r pb =0.3 ( p <0.001) to r pb =0.5 ( p <0.001) across all individual questions, indicating convergent validity for all items ( Table 3 ). For discriminant validity, we found no significant correlation between conside RATE healthcare items and the demographic literacy item for continuous conside RATE (r range: r=0.07 to r=0.07, p>0.05) and top-box conside RATE (r range: r=0.001 to r=0.147, p>0.05) ( Table 3 ). We found a significant correlation with low Pearson’s correlation coefficient between conside RATE and the demographic literacy question across a few items for continuous conside RATE (r=0.2, p<0.05) and top-box conside RATE (r range: r=0.1 to 0.2, p<0.05) ( Table 3 ). View this table: View inline View popup Table 3. Matching consideRATE questions with CANHELP Lite and demographic questions for convergent and discriminant validity 1 Reliability The conside RATE questions demonstrated reliability with an internal consistency of 0.9 ( Table 2 ). Subgroup analysis We found no significant difference in overall conside RATE scores between the following subgroups: participants who resided in rural areas and non-rural areas (p=0.362), participants from New Hampshire and Vermont (p = 0.269), patient and care partners (p = 0.307), male and female groups (p = 0.254), CKD stage and transplant or follow-up group (p = 0.199), and those who traveled less than 60 minutes and those who traveled at least 60 minutes (p = 0.080) ( Table 6 ). Multivariable Regression Model Total conside RATE score The multivariable regression analysis revealed that residing in “rural areas” was not significantly associated with total conside RATE score compared to those residing in “metropolitan areas.” The crude and adjusted coefficients were -0.04 (p-value = 0.758) and -0.07 (p-value = 0.153), respectively. We found a positive association between the total conside RATE score and participants who were “55-74 years old” (crude coefficient: 0.43, p<0.001 and adjusted coefficient: 0.49, p<0.05) and “at least 75 years old”, compared to those aged “18-34 years” ( Table 4 ). Also, we found a positive association between the total conside RATE score and those who “traveled 31-60 minutes” and “longer than 60 minutes” for their appointment (crude coefficient: 0.27, p<0.05 and adjusted coefficient: 0.27, p<0.05), compared to those who traveled “less than 30 minutes” ( Table 4 ). We found a weak negative association between the total conside RATE score and those who reported being “moderately religious” (crude coefficient: -0.23, p>0.05 and adjusted coefficient: -0.27, p<0.05) compared to those who reported being “slightly religious” ( Table 4 ). View this table: View inline View popup Table 4. Multivariable linear regression analysis: Association between overall mean consideRATE and demographic variables Conside RATE score per item The multivariable linear regression models across each of the seven conside RATE items revealed significant associations between three total conside RATE score items (the conside RATE “Plans” item, the “Surroundings” item, and the “What matters most” item) and various demographic and clinical characteristics ( Supplementary 2 ). First, we found a weak negative association between the total conside RATE score for the “plans” item and those who have a “high school diploma or less” (crude coefficient: -0.17, p>0.05 and adjusted coefficient: -0.29, p<0.05), compared to those who have an undergraduate degree ( Supplementary 2 ). Second, we found a weak negative association between the total conside RATE score for the “Surroundings” item for patients (crude coefficient: -0.164, p>0.05 and adjusted coefficient: -0.33, p<0.05), compared to “care partners” ( Supplementary 2 ). Third, we also found a weak negative association between the total conside RATE score for the “What matters most” item for patients (crude coefficient: -0.164, p>0.05 and adjusted coefficient: -0.33, p<0.05), compared to “care partners” ( Supplementary 2 ). consideRATE Open-ended Question A total of 23 patients and care partners provided free-text responses to the conside RATE open-ended questions, which underwent screening (by AZ and RS) to identify common patterns and categories, which consisted of positive and negative experiences among patients and care partners. Among the responses, 8 were negative, 10 were positive, and 5 were deemed irrelevant because the participants answered “no” or their responses indicated it was their first visit and they had insufficient information to answer the questions ( Table 5 ). Any discrepancies in screening were resolved through discussion among the research team, including senior author CHS. Using a qualitative content analysis approach, AZ and RS conducted an open coding approach of the responses, which were then categorized into five categories: Caring, Scheduling, Personalization, Quality, and Collaboration ( Table 5 ). View this table: View inline View popup Download powerpoint Table 5. Content analysis based on participants’ response to the consideRATE open-ended question (N = 23). View this table: View inline View popup Download powerpoint Table 6. Measuring mean consideRATE scores across subgroups Participants exclusively reported negative experiences in the categories Caring (n=2), Personalization (n=3), and Scheduling (n=3). We found issues like delayed appointments and lack of follow-up in scheduling frustrated patients and care partners. Likewise, patients and care partners reported a lack of compassion and effort by the care teams to get to know the patient individually as negative experiences. Conversely, participants only recorded positive experiences in the categories Collaboration (n=2) and Quality (n=5). Participants expressed strong trust in the quality of care at Dartmouth, as well as both Dartmouth’s interdepartmental collaboration and external collaboration with doctors in Northern New England. Positive experiences were also noted in the Caring (n=2) and Personalization (n=1) categories. We found that patients emphasized feeling valued when care teams attentively listened to participants and provided them with individualized, patient-centered care. Discussion Summary of results This is the first real-world use of the conside RATE questions in a nephrology clinic among patients with kidney disease and their accompanying care partners. The conside RATE questions demonstrated reliability with strong internal consistency in addition to convergent and discriminant validity. For subgroup analysis, we found no significant difference in mean conside RATE scores across state residence, rurality status, gender, type of visit, responders,reason for visit, and distance traveled. Our multivariable linear regression model revealed significant associations between healthcare experience measured by conside RATE and several demographic variables. For instance, longer distance traveled and higher age were associated with higher conside RATE scores. People who were moderately religious, however, were likely to have lower consideRATE scores. Surprisingly, we found no significant association between healthcare experience measured by conside RATE and rurality measured with RUCA codes. For two conside RATE items, “What matters most” and “Surroundings”, we found that patients tend to rate (1) their healthcare providers’ attention to patients’ surroundings and (2) healthcare providers’ respect for them significantly lower compared to care partners. For the “Plans” conside RATE item, we found that participants who had a “high school degree or less” tended to rate healthcare providers’ communication about the next steps significantly lower compared to participants who had at least an undergraduate degree. Results in context When we used the conside RATE questions in an outpatient nephrology context, our results were consistent with previous conside RATE psychometric studies from several other populations. 16 , 19 The results in this real-world setting demonstrated strong psychometric properties, but they were less robust than in our online test with simulated patients. 16 This makes sense, as the real-world context of a nephrology clinic introduces more variability and complexity than a controlled online simulation. For psychometric tests, our convergent validity, discriminant validity, and reliability tests in this nephrology clinical context were consistent with our findings in an outpatient cancer population, another real-world assessment. 19 The association between rurality and patient experience has been inconsistent in previous studies. 22 , 24 Our results contribute to this uncertainty in the literature by demonstrating that there is no significant (1) association between rurality and healthcare experience and (2) there is no significant difference in mean conside RATE scores between participants who live in a rural area compared to participants who live in a non-rural area. This lack of significant difference could be due to several factors. First, it is possible that healthcare services in this region, including access to care, have improved, reducing the disparities in healthcare experience that might have existed in the past. The expansion of telehealth services since the pandemic may have improved care at the hospitals and clinics that are left. Furthermore, Dartmouth-Hitchcock Medical Center, New Hampshire’s only Level 1 trauma center and a leading academic medical center in Northern New England, is situated in a rural area and provides high-quality care to rural patients that are nearby. Second, the majority of participants in this nephrology clinic reported “good” or “very good” when responding to conside RATE items. The homogeneity of responses (with a predominance of high scores) could imply that healthcare experiences across both rural and non-rural areas are perceived similarly, especially in areas where healthcare quality is generally high or where improvements in healthcare delivery have been consistent across regions. In such cases, rural-urban differences in healthcare experience may not be substantial enough to reveal significant differences in the conside RATE scores. Perhaps physical access and proximity to services is less important to patients than other aspects of their care. Implications The conside RATE questions fill an important gap in the literature for assessing patient care experiences in chronic disease management, particularly in nephrology. CKD, for example, is a complex, lifelong condition that requires ongoing medical care, regular monitoring, and multidisciplinary support. In this context, it is critical to capture not only clinical outcomes but also the subjective experiences of patients, which can influence their engagement in treatment plans and overall sense of well-being. The conside RATE questions offer a unique approach by focusing on what matters most to patients in real-time healthcare interactions, making it particularly useful in chronic care settings where patient engagement and trust are essential. 34 , 35 Our study has implications for multiple stakeholders in the care of patients with kidney disease. This measure allows patients to quickly and practically communicate elements of their experience to their clinicians, which can then inform management decisions with clinicians. With this measure, health systems can better track patient experience and implement policy changes to better facilitate quality patient care experiences. Our conside RATE assessment revealed several key factors that may influence patient experience and could be addressed in nephrology clinics. For example, the significant difference observed in the “plans” item, where participants with a “high school diploma or less” rated their communication about next steps with healthcare providers lower than those with an undergraduate degree, perhaps demonstrates the importance of tailored communication strategies for patients and family members with serious illness, including those with CKD. 36 This finding suggests that educational level may influence how effectively patients engage with their healthcare providers regarding their treatment plans. Furthermore, healthcare providers may need to adapt their communication style and ensure that patients with lower educational backgrounds receive clear and accessible explanations about their care plans. This includes ensuring that patient education materials are written at appropriate literacy levels, which can help enhance patient healthcare experience and satisfaction. Additionally, the lower ratings of the (1) “what matters most” and (2) “surrounding” conside RATE items suggest that patients may feel that their healthcare providers are not fully attuned to their personal environment, potentially impacting their overall experience of care. These results may suggest the need for healthcare providers to consider patients’ holistic needs, including emotional and environmental factors, in their care delivery. Limitations As a single-center study, one significant limitation is that the population of Northern New England lacks the demographic diversity of other regions of the country. While the conside RATE questions may perform well in the population we studied, they may not be as readily understood by patients from other demographic groups, therefore limiting its generalizability. Another limitation is that roughly 93 participants were excluded from the analysis due to interruptions in completing the measures in the waiting room of the nephrology clinic. There is no clear reason to think that these excluded patients are different from those who were able to complete the measures before being called for their appointment. We note, however, that this limitation will be an important consideration as we design future studies with in-office recruitment. Conclusion We demonstrated the first psychometric assessment of the conside RATE questions in a nephrology clinic. We found that patient experience did not differ by rurality in the population with CKD. Data Availability All data produced in the present study are available upon reasonable request to the authors References 1. ↵ Henson LA , Maddocks M , Evans C , Davidson M , Hicks S , Higginson IJ . Palliative Care and the Management of Common Distressing Symptoms in Advanced Cancer: Pain, Breathlessness, Nausea and Vomiting, and Fatigue . J Clin Oncol . 2020 ; 38 ( 9 ): 905 – 914 . doi: 10.1200/JCO.19.00470 OpenUrl CrossRef PubMed 2. ↵ Francis A , Harhay MN , Ong ACM , et al. Chronic kidney disease and the global public health agenda: an international consensus . Nat Rev Nephrol . 2024 ; 20 ( 7 ): 473 – 485 . doi: 10.1038/s41581-024-00820-6 OpenUrl CrossRef PubMed 3. ↵ Kovesdy CP . Epidemiology of chronic kidney disease: an update 2022 . Kidney Int Suppl . 2022 ; 12 ( 1 ): 7 – 11 . doi: 10.1016/j.kisu.2021.11.003 OpenUrl CrossRef PubMed 4. ↵ CDC . Chronic Kidney Disease in the United States, 2023 . Chronic Kidney Disease . May 21, 2024 . Accessed June 10, 2024. https://www.cdc.gov/kidney-disease/php/data-research/index.html 5. ↵ Hussien H , Apetrii M , Covic A . Health-related quality of life in patients with chronic kidney disease . Expert Rev Pharmacoecon Outcomes Res . 2021 ; 21 ( 1 ): 43 – 54 . doi: 10.1080/14737167.2021.1854091 OpenUrl CrossRef PubMed 6. ↵ Olsen E , van Galen G . Chronic renal failure-causes, clinical findings, treatments and prognosis . Vet Clin North Am Equine Pract . 2022 ; 38 ( 1 ): 25 – 46 . doi: 10.1016/j.cveq.2021.11.003 OpenUrl CrossRef PubMed 7. ↵ Fawad I , Fischer KM , Yeganeh HST , et al. Rurality and patients’ hospital experience: A multisite analysis from a US healthcare system . PLoS One . 2024 ; 19 ( 8 ): e0308564 . doi: 10.1371/journal.pone.0308564 OpenUrl CrossRef PubMed 8. ↵ Franco CM , Lima JG , Giovanella L . Primary healthcare in rural areas: access, organization, and health workforce in an integrative literature review . Cad Saude Publica . 2021 ; 37 ( 7 ): e00310520 . doi: 10.1590/0102-311X00310520 OpenUrl CrossRef PubMed 9. ↵ Wu YL , Wu YC , Akhmetzhanov AR , Wu MY , Lin YF , Lin CC . Urban-rural health disparity among patients with chronic kidney disease: a cross-sectional community-based study from 2012 to 2019 . BMJ Open . 2024 ; 14 ( 7 ): e082959 . doi: 10.1136/bmjopen-2023-082959 OpenUrl Abstract / FREE Full Text 10. ↵ Domislović M , Domislović V , Stevanović R , et al. Chronic kidney disease in rural population . Acta Clin Croat . 2022 ; 61 ( 2 ): 228 – 238 . doi: 10.20471/acc.2022.61.02.09 OpenUrl CrossRef PubMed 11. ↵ Selewski DT , Thompson A , Kovacs S , et al. Patient-Reported Outcomes in Glomerular Disease . Clin J Am Soc Nephrol . 2017 ; 12 ( 1 ): 140 – 148 . doi: 10.2215/CJN.13231215 OpenUrl Abstract / FREE Full Text 12. ↵ Tong A , Oberbauer R , Bellini MI , et al. Patient-Reported Outcomes as Endpoints in Clinical Trials of Kidney Transplantation Interventions . Transpl Int . 2022 ; 35 : 10134 . doi: 10.3389/ti.2022.10134 OpenUrl CrossRef PubMed 13. ↵ Jamieson Gilmore K , Corazza I , Coletta L , Allin S . The uses of Patient Reported Experience Measures in health systems: A systematic narrative review . Health Policy . 2023 ; 128 : 1 – 10 . doi: 10.1016/j.healthpol.2022.07.008 OpenUrl CrossRef PubMed 14. ↵ Becker C , Zumbrunn S , Beck K , et al. Interventions to improve communication at hospital discharge and rates of readmission: A systematic review and meta-analysis: A systematic review and meta-analysis . JAMA Netw Open . 2021 ; 4 ( 8 ): e2119346 . doi: 10.1001/jamanetworkopen.2021.19346 OpenUrl CrossRef 15. ↵ Saunders CH , Durand MA , Scalia P , et al. User-Centered Design of the consideRATE Questions, a Measure of People’s Experiences When They Are Seriously Ill . J Pain Symptom Manage . 2021 ; 61 ( 3 ): 555 – 565 .e5. doi: 10.1016/j.jpainsymman.2020.08.002 OpenUrl CrossRef PubMed 16. ↵ Saunders CH , Durand MA , Kirkland KB , MacMartin MA , Barnato AE , Elwyn G . Psychometric assessment of the consideRATE questions, a new measure of serious illness experience, with an online simulation study . Patient Educ Couns . 2022 ; 105 ( 7 ): 2581 – 2589 . doi: 10.1016/j.pec.2022.01.002 OpenUrl CrossRef PubMed 17. Virdun C , Luckett T , Lorenz K , Davidson PM , Phillips J . Dying in the hospital setting: A meta-synthesis identifying the elements of end-of-life care that patients and their families describe as being important . Palliat Med . 2017 ; 31 ( 7 ): 587 – 601 . doi: 10.1177/0269216316673547 OpenUrl CrossRef PubMed 18. ↵ Heyland DK , Jiang X , Day AG , Cohen SR . The Development and Validation of a Shorter Version of the Canadian Health Care Evaluation Project Questionnaire (CANHELP Lite): A Novel Tool to Measure Patient and Family Satisfaction With End-of-Life Care . J Pain Symptom Manage . 2013 ; 46 ( 2 ): 289 – 297 . doi: 10.1016/j.jpainsymman.2012.07.012 OpenUrl CrossRef PubMed 19. ↵ Nano JP , Stevens G , Elwyn G , et al. Using consideRATE to evaluate patient experience in a cancer center: Psychometric and healthcare assessments . medRxiv. Published online January 27 , 2025 :2025.01.24.25321099. doi: 10.1101/2025.01.24.25321099 OpenUrl Abstract / FREE Full Text 20. ↵ Virdun C , Button E , Phillips JL , Yates P , Luckett T . Perspectives of inpatients with palliative care needs, their families, clinicians and key stakeholders on measuring quality of hospital care via patient experience measures: A qualitative study . Palliat Med . 2023 ; 37 ( 10 ): 1498 – 1508 . doi: 10.1177/02692163231209845 OpenUrl CrossRef PubMed 21. ↵ Zhao D , Zhou Z , Shen C , et al. Rural and urban differences in patient experience in China: a coarsened exact matching study from the perspective of residents . BMC Health Serv Res . 2021 ; 21 ( 1 ): 330 . doi: 10.1186/s12913-021-06328-0 OpenUrl CrossRef PubMed 22. ↵ Iqbal I , Thompson L , Wilson P . Patient satisfaction with general practice in urban and rural areas of Scotland . Rural Remote Health . 2021 ; 21 ( 4 ): 6634 . doi: 10.22605/RRH6634 OpenUrl CrossRef PubMed 23. Henning-Smith C , Hernandez A , Neprash H , Lahr M . Differences by rurality in satisfaction with care among Medicare beneficiaries . J Rural Health . 2021 ; 37 ( 1 ): 114 – 123 . doi: 10.1111/jrh.12423 OpenUrl CrossRef PubMed 24. ↵ Kaneko M , Yamada H , Oakada T . Patient experiences in primary care do not differ according to rurality: a cross-sectional study . BMC Prim Care . 2024 ; 25 ( 1 ): 132 . doi: 10.1186/s12875-024-02397-2 OpenUrl CrossRef PubMed 25. ↵ Ratner B . The correlation coefficient: Its values range between +1/−1, or do they? J Target Meas Anal Mark . 2009 ; 17 ( 2 ): 139 – 142 . doi: 10.1057/jt.2009.5 OpenUrl CrossRef 26. ↵ Hailu PCA . Guidelines for Using Rural-Urban Classification Systems for Community Health Assessment . https://doh.wa.gov/sites/default/files/legacy/Documents/1500/RUCAGuide.pdf 27. ↵ Chew LD , Bradley KA , Boyko EJ . Brief questions to identify patients with inadequate health literacy . Fam Med . 2004 ; 36 ( 8 ): 588 – 594 . Accessed January 9, 2025. https://pubmed.ncbi.nlm.nih.gov/15343421/ OpenUrl PubMed Web of Science 28. Chew LD , Griffin JM , Partin MR , et al. Validation of screening questions for limited health literacy in a large VA outpatient population . J Gen Intern Med . 2008 ; 23 ( 5 ): 561 – 566 . doi: 10.1007/s11606-008-0520-5 OpenUrl CrossRef PubMed Web of Science 29. Sigerson L , Cheng C . Scales for measuring user engagement with social network sites: A systematic review of psychometric properties . Comput Human Behav . 2018 ; 83 : 87 – 105 . doi: 10.1016/j.chb.2018.01.023 OpenUrl CrossRef 30. ↵ Morris NS , MacLean CD , Chew LD , Littenberg B . The Single Item Literacy Screener: evaluation of a brief instrument to identify limited reading ability . BMC Fam Pract . 2006 ; 7 ( 1 ): 21 . doi: 10.1186/1471-2296-7-21 OpenUrl CrossRef PubMed 31. ↵ Taber KS . The use of cronbach’s alpha when developing and reporting research instruments in science education . Res Sci Educ . 2018 ; 48 ( 6 ): 1273 – 1296 . doi: 10.1007/s11165-016-9602-2 OpenUrl CrossRef 32. ↵ Caniglia EC , Zash R , Swanson SA , et al. Methodological challenges when studying distance to care as an exposure in health research . Am J Epidemiol . 2019 ; 188 ( 9 ): 1674 – 1681 . doi: 10.1093/aje/kwz121 OpenUrl CrossRef PubMed 33. ↵ Kelly C , Hulme C , Farragher T , Clarke G . Are differences in travel time or distance to healthcare for adults in global north countries associated with an impact on health outcomes? A systematic review . BMJ Open . 2016 ; 6 ( 11 ): e013059 . doi: 10.1136/bmjopen-2016-013059 OpenUrl Abstract / FREE Full Text 34. ↵ Dy SM , Kiley KB , Ast K , et al. Measuring what matters: top-ranked quality indicators for hospice and palliative care from the American Academy of Hospice and Palliative Medicine and Hospice and Palliative Nurses Association . J Pain Symptom Manage . 2015 ; 49 ( 4 ): 773 – 781 . doi: 10.1016/j.jpainsymman.2015.01.012 OpenUrl CrossRef PubMed 35. ↵ Gramling R , Stanek S , Ladwig S , et al. Feeling heard and understood: A patient-reported quality measure for the inpatient palliative care setting . J Pain Symptom Manage . 2016 ; 51 ( 2 ): 150 – 154 . doi: 10.1016/j.jpainsymman.2015.10.018 OpenUrl CrossRef PubMed 36. ↵ Anderson RJ , Bloch S , Armstrong M , Stone PC , Low JT . Communication between healthcare professionals and relatives of patients approaching the end-of-life: A systematic review of qualitative evidence . Palliat Med . 2019 ; 33 ( 8 ): 926 – 941 . doi: 10.1177/0269216319852007 OpenUrl CrossRef PubMed View the discussion thread. Back to top Previous Next Posted April 28, 2025. Download PDF Data/Code Email Thank you for your interest in spreading the word about medRxiv. NOTE: Your email address is requested solely to identify you as the sender of this article. 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