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Wi, Chung‐Il

https://orcid.org/0000-0001-8938-2997

Mayo Clinic

Mayo Clinic

Citations 57

The Association Between Patient-Reported Social Risks and the HOUSES Index: A Rural-Urban Comparison
Sosso, Jessica , Wi, Chung‐Il , Jegen, Dominika , Matthews, Marc R. , Maxson, Julie, Bernard, Matthew , Foss, Randy , Hidaka, Brandon H. , Passmore, Rachael , Garrison, Gregory M. , Sosso, Jessica L , Wi, Chung-Ii , Jegen, Dominika A , Matthews, Marc, Stacey, Stephen K , Foss, Randy , Hidaka, Brandon , Passmore, Rachael , Garrison, Gregory M , Thacher, Thomas D , Matthews, Marc R , Fischer, Karen M., Thacher, Tom D.

Journal of Primary Care & Community Health | September 2, 2025 | Volume: 16 | Issue: No issue available | Pages: No page available

10.1177/21501319251369673 Get It

Introduction/Objectives: Little is known about the prevalence of patient-reported social risk factors and the use of the HOUSES Index, a simple, reliable method of assessing socioeconomic status (SES) based on publicly available housing data, in a predominantly rural, primary care population. Methods: We conducted a cross-sectional analysis of adult patients paneled to family medicine clinicians in a US Midwest health system as of December 31, 2022. Patients’ listed address determined HOUSES Index as quartile rank (Q1 lowest SES) and rural/urban status. Social risk data including housing, food, transportation, finances, and violence were collected from health record questionnaires. A mixed effect model was used to assess associations between social risk, HOUSES Index, and rurality. Results: Of the 352 355 patients included, rural patients were more likely than urban patients to report all social risk factors and had lower SES as measured by HOUSES quartiles. In the mixed effects analysis, HOUSES quartile was independently predictive of reporting an at-risk social risk factor (Q1 vs Q4 OR = 2.27, 95% CI = 2.19-2.37), but rurality was not (OR = 1.02, 95% CI = 0.97-1.07) after adjusting for HOUSES. Conclusions: The increased prevalence of social risk factors among rural residents is largely explained by individual SES measured by HOUSES Index.
Re: “the challenges of measuring socioeconomic inequality in pharmacoepidemiology studies”
Wi, Chung‐Il , Shim, Dale, Juhn, Young J. , Wi, Chung-Ii

American Journal of Epidemiology | August 15, 2025 | Volume: 194 | Issue: 11 | Pages: 3394-3395

10.1093/aje/kwaf170 Get It

Socioeconomic Disparities in Preemptive Kidney Transplant Rates in Children
Kizilbash, Sarah J. , Wi, Chung‐Il , Roy, Madison, McKinney, Warren T. , Amaral, Sandra , Riad, Samy , Juhn, Young J. , Kizilbash, Sarah , Wi, Chung-Ii , Juhn, Young, Riad, Samy M. , McKinney, Warren , Amaral, Sandra G.

Kidney360 | April 7, 2025 | Volume: 6 | Issue: 7 | Pages: 1188-1197

10.34067/kid.0000000802 Get It

Key Points Pediatric preemptive kidney transplantation rates in the United States vary by socioeconomic status (SES). The HOUsing-based index of SES, an individual-level SES measure derived from residential addresses, effectively predicts pediatric preemptive kidney transplant rates. Background Preemptive kidney transplantation in children is associated with better patient and graft survival compared with transplants after dialysis. However, preemptive kidney transplantation rates in children remain low. This study aimed to evaluate the effect of socioeconomic status (SES) on preemptive transplantation in children. Methods Our study included 173 Minnesota-resident pediatric kidney transplant recipients (younger than 18 years) transplanted at the University of Minnesota from 2010 to 2020. Using the HOUsing-based index of SES (HOUSES) index, a validated, individual SES measure based on housing units categorized into quartiles (Q1: lower SES; Q2–Q4: higher SES), we applied mixed-effects multivariable logistic models to examine the effects of HOUSES on preemptive kidney transplants and pretransplant dialysis duration. Results Of 173 pediatric kidney transplant recipients, 46 (26.6%) received a preemptive transplant, and of 109 recipients with dialysis duration data, 39 (35.8%) received dialysis for >1 year. After adjusting for age at kidney failure, sex, donor type, insurance type, and underlying cause of kidney failure, we observed significantly lower odds of preemptive transplantation among Q1 recipients compared with Q2–4 recipients (adjusted odds ratio, 0.31; 95% confidence interval, 0.11 to 0.90; P = 0.03). Conclusions Using the HOUSES index, we found significant socioeconomic disparities in preemptive kidney transplantation rates among children.
Decentralized subject recruitment for a prospective community surveillance system: The influence of social determinants of health on inclusion of minorities in research
Wi, Chung I., Pignolo, Robert J. , Bosch, Wendelyn , King, Katherine C. , Ryu, Euijung , Natoli, Traci L., Ihrke, Kathy, Spiten, Matthew J., Speiser, Lisa , Juhn, Young J. , Pignolo, Robert, Natoli, Traci, Spiten, Matthew, Juhn, Y J , Takahashi, Paul Y. , Wi, Chung‐Il , King, Katherine, Hidaka, Brandon H.

Journal of Clinical and Translational Science | March 27, 2025 | Volume: 9 | Issue: 1 | Pages: No page available

10.1017/cts.2025.18 Get It

Abstract Background/Objective: Decentralized research has many advantages; however, little is known about the representativeness of a source population in decentralized studies. We recruited participants aged 18-64 years from four states from June to December 2022 for a prospective cohort study to assess viral epidemiology. Our aim was to determine the association between age, gender, race/ethnicity, rurality, and socioeconomic status (SES) on study participation in a decentralized prospective cohort study. Methods: We consented 9,286 participants from 231,099 (4.0%) adults with the mean age of 45.6 years (±12.0). We used an electronic decentralized approach for recruitment. Consented participants were more likely to be non-Hispanic White, female, older, urban residents, have more health conditions, and possessed higher socioeconomic status (SES) compared to those non-consented. Results: We observed an interaction between SES and race-ethnicity on the odds of consent (P = 0.006). Specifically, SES did not affect non-Hispanic white participation rates(OR 1.24 95% CI 1.16 – 1.32] for the highest SES quartile compared to those with the lowest SES quartile) as much as it did participants combined across the other races (OR 1.73; 95% CI 1.45 – 2.98]) Conclusion: The relationship between SES and consent rates might be disproportionately greater in historically disadvantaged groups, compared to non-Hispanic White. It suggests that instead of focusing on enrollment of specific minority groups in research, there is value in future research exploring and addressing the diversity of barriers to trials within minority groups. Our study highlights that decentralized studies need to address social determinants of health, especially in under-resourced populations.
267 Impact of individual socioeconomic status on rural health disparities in chronic disease prevalence and control
Wi, Chung‐Il

Journal of Clinical and Translational Science | March 25, 2025 | Volume: 9 | Issue: s1 | Pages: 83-83

10.1017/cts.2024.910 Get It

Objectives/Goals: Rural disparities in chronic disease burden are well documented. However, the impact of individual socioeconomic status on these rural disparities in prevalence and control status of chronic diseases remains less understood. We aim to assess the association of prevalence and control status of chronic diseases among adults with rurality and socioeconomic status (SES). Methods/Study Population: The Expanded Rochester Epidemiology Project medical records linkage system identified prevalence of asthma, diabetes, hypertension, and mood disorder using ICD codes between 2014 and 2019 among adults in 27 Upper Midwest counties. Uncontrolled status was defined by presence of ED visit or hospitalization with corresponding ICD-9/10 codes. SES was measured by HOUSES index, a validated individual-level SES measure, and rural status was defined by primary Rural Urban Commuting Area codes of 4–10. Hierarchical logistic regression models were used to examine the association of rurality with prevalence and control status of the four chronic diseases, adjusting for age, sex, race/ethnicity, and presence of general medical exam extracted by CPT codes (Model 1) and additionally SES measured by HOUSES (Model 2). Results/Anticipated Results: Among 455,802 adults, 42.8% were rural residents and 87.4% were Non-Hispanic White. Model 1 (without HOUSES) showed higher prevalence and lower control rates of chronic diseases in rural residents, except for asthma. In Model 2, accounting for SES, urban residents were more likely to have an uncontrolled mood disorder, hypertension, and diabetes, and there were no differences in prevalence of chronic diseases that existed between rural and urban residents. Lower SES measured by HOUSES was consistently and significantly associated with higher prevalence and uncontrolled status of chronic diseases (p-value Discussion/Significance of Impact: Patient’s SES explains rural disparities in prevalence (null association with rurality once SES is accounted) and changes the directionality of association for uncontrolled status in Upper Midwest, highlighting the importance of considering SES in rural disparities research.
Socioeconomic Inequities in Preemptive Kidney Transplantation and Graft Survival: An Innovative Approach to Identifying Disparities in Kidney Transplantation
Kizilbash, Sarah J. , Roy, Madison, Ryu, Euijung , Matas, Arthur J., Juhn, Young J. , Garovic, Vesna, Juhn, Young, Kizilbash, Sarah , Wi, Chung‐Il , Garovic, Vesna D. , Riad, Samy , Schinstock, Carrie A.

Transplantation Direct | December 19, 2024 | Volume: 11 | Issue: 1 | Pages: e1734

10.1097/txd.0000000000001734 Get It

Background. The limitations of conventional measures of socioeconomic status (SES) limit our ability to elucidate the role of SES as a key element of social determinants of health in kidney transplantation. This study’s objective was to use an innovative SES measure, the HOUsing-based SES measure (HOUSES) index, to examine the effects of social determinants of health on access to and outcomes of kidney transplantation. Methods. Our study included residents of Minnesota (age older than 18 y) who underwent kidney transplantation at a single center between 2010 and 2020. SES was determined using the HOUSES index, categorized into quartiles (Q1 for lower, Q2–Q4 for higher SES). We used mixed-effects multivariable logistic and Cox models to examine the effects of HOUSES on preemptive transplants, pretransplant dialysis duration, and death-censored graft loss, adjusting for covariates. Results. Among 1975 eligible patients, 29.4% received preemptive transplants, 34.9% underwent pretransplant dialysis for >3 y, and 15.1% experienced death-censored graft loss for a median follow-up of 7.15 (interquartile range, 4.25–11.38) y. Lower SES recipients (Q1) demonstrated decreased preemptive transplant likelihood (adjusted odds ratio [aOR]: 0.74; 95% confidence interval [CI], 0.57-0.97; P = 0.03), longer dialysis duration (>3 y; aOR: 1.43; 95% CI, 1.01-2.03; P = 0.046), and higher death-censored graft loss (adjusted hazard ratio 1.36; 95% CI, 1.02-1.12; P = 0.036) versus higher SES recipients (Q2–Q4). Conclusions. We observed significant socioeconomic disparities in kidney transplant access, dialysis duration, and graft survival. The HOUSES index may be a promising tool for individual-based targeted interventions as it identifies SES on an individual rather than an area-level basis.
Impact of Family Structure on Adolescent Depression Outcomes in a Collaborative Care Program
Lynch, Brian , Lewis, Charles P. , Voort, Jennifer L. Vande , Nandakumar, Aiswarya Laks, Brennan, RoxAnne, Cole, Kristin , Rackley, Sandra , Wi, Chung‐Il , Romanowicz, Magdalena , Mara, Kristin C. , Lynch, Brian A , Brennan, RoxAnne M, Rackley, Sandra J, Wi, Chung-Ii , Mara, Kristin C , Croarkin, Paul E.

Journal of Primary Care & Community Health | October 21, 2024 | Volume: 15 | Issue: No issue available | Pages: No page available

10.1177/21501319241291790 Get It

Introduction/Objectives: We aimed to investigate the effect of family structure on depression program outcomes for adolescents enrolled in a depression-focused, primary care-based collaborative care program. Methods: This was a retrospective study of primary care patients ages 12 to 18 years seen at a Midwestern academic center with data obtained by medical record review. We used logistic regression models to assess the effect of family structure on program graduation and achievement of a single Patient Health Questionnaire 9–Modified for Adolescents (PHQ-9M) score <5 at any time while enrolled. Results: Adolescents were divided into 2 groups, Both Parents in Household (n = 179) and Parents Not Together (n = 161). The Both Parents in Household group had higher rates of graduation (38.0% vs 23.6%, P = .005) and achieving single PHQ-9M scores <5 (64.1% vs 46.2%, P = .002) than the Parents Not Together group. Discussion: Youth residing with both parents had higher rates of successful outcomes in a depression-focused collaborative care program.
Incidence of Respiratory Syncytial Virus in Community-Dwelling Adults Aged 18–64 Years Over 2 Seasons, 2022–2024, in a North American Community
Bosch, Wendelyn , Speiser, Lisa , Wi, Chung‐Il , King, Katherine S. , Natoli, Traci L., Ihrke, Kathy, Spiten, Matthew J., Binnicker, Matthew J. , Yao, Joseph D. , Takahashi, Paul Y. , Pignolo, Robert J. , Foss, Randy , Pirçon, Jean‐Yves , Saeedi, Pouya , Oujaa, Mohamed, Juhn, Young J. , Speiser, Lisa J , Ihrke, Kathy D, Hidaka, Brandon , Foss, Randy , Juhn, Y J , King, Katherine , Takahashi, Paul , Wi, Chung-Ii , Hidaka, Brandon H.

Open Forum Infectious Diseases | October 11, 2024 | Volume: 11 | Issue: 10 | Pages: No page available

10.1093/ofid/ofae597 Get It

Abstract Background The incidence of respiratory syncytial virus (RSV)–acute respiratory infection (ARI) in community-dwelling adults after the Omicron variant of the COVID-19 pandemic is unknown. Our aim was to assess the incidence of RSV-ARI in adults aged 18 to 64 years over 2 consecutive RSV seasons (October–April 2022–2024) in 4 US states. Methods This community-based prospective cohort study comprised 7501 participants in Minnesota, Wisconsin, Florida, and Arizona. We calculated RSV-ARI and RSV–lower respiratory tract disease (LRTD) incidence and attack rates. We reported unadjusted incidence by age group, gender, race and ethnicity, Charlson Comorbidity Index, socioeconomic status, residential state, and rural/urban setting. Results Seasons 1 and 2 had 2250 and 2377 ARI episodes, respectively, with an RSV-ARI positivity rate of 5.5% for season 1 and 5.8% for season 2 among those tested. In season 1, the overall incidence of RSV-ARI was 27.71 (95% CI, 22.82–33.34) per 1000 person-years (1.49% attack rate). Almost half (49.0%) had RSV-LRTD, with an incidence of 13.53 (95% CI, 10.19–17.61) per 1000 person-years (0.73% attack rate). In season 2, the RSV-ARI and RSV-LRTD incidence rates were 26.39 (95% CI, 21.73–31.75) per 1000 person-years (1.51% attack rate) and 12.43 (95% CI, 9.31–16.26) per 1000 person-years (0.72% attack rate). RSV-ARI incidence peaked in November 2022 and December 2023. Conclusions Our observations suggest that RSV-ARI incidence and seasonal pattern are shifting to prepandemic RSV epidemiology.
Evaluating the Association Between Sociodemographic and Health Variables With Baseline Concussion Testing in Young Athletes
Kreitner, Liga , Crowley, Eric M., Weaver, Amy L. , Soma, David , Crowley, Eric, Kreitner, Liga A , Wi, Chung‐Il

Orthopaedic Journal of Sports Medicine | December 11, 2023 | Volume: 11 | Issue: 12 | Pages: No page available

10.1177/23259671231214222 Get It

Background: Baseline concussion testing can be helpful to perform when providing concussion care for young athletes. To appropriately interpret these data, it is important to understand how certain factors may affect concussion testing. Purpose: To examine the relationship of sociodemographic and health variables with baseline concussion testing in young athletes. Study Design: Cross-sectional study; Level of evidence, 3. Methods: High school and middle school athletes competing in sports or positions at high risk for concussion (football, soccer, ice hockey, wrestling, lacrosse, and pitchers/catchers in baseball/softball) during the 2020-2021 or 2021-2022 academic years completed annual baseline concussion testing and were included in the study. Baseline data included self-reported demographic and medical information, a graded symptom checklist, the Standardized Assessment of Concussion, and the King-Devick test. A validated measure, HOUSES (HOUsing-based index of SocioEconomic Status), was used to determine participants’ socioeconomic status (SES) by linking personal address information to publicly available property data. Multivariable linear regression models were fit to analyze the relationship of concussion baseline testing to sociodemographic and health variables. Results: Among the eligible 2747 athletes (mean age, 15.4 ± 1.5 years; 73.6% male), the mean Standardized Assessment of Concussion score was 26.7 ± 2.0 and the mean best King-Devick test time was 50.3 ± 10.1 seconds. Higher baseline symptom severity scores were related to lower SES ( P = .002). A lower (ie, poorer) mean Standardized Assessment of Concussion score was significantly associated with the following in the multivariable model: male sex ( P < .001), younger age ( P < .001), Black/African American race ( P = .029), Hispanic ethnicity ( P = .016), previous diagnosis of learning disorder or attention-deficit hyperactivity disorder ( P < .001), and lower SES ( P = .003). A higher (ie, poorer) mean King-Devick test time was related to younger age, previous diagnosis of a learning disorder or attention-deficit hyperactivity disorder, and lower SES (all P < .001). Conclusion: Baseline concussion testing was found to be associated with certain sociodemographic variables and underlying health conditions in high school and middle school athletes.
Application of Innovative Subject Recruitment System for Batch Enrollment: A Pilot Study
Wi, Chung‐Il , Ryu, Euijung , Natoli, Traci L., Miller, Ryan P, Spiten, Matthew J., Pignolo, Robert J. , Juhn, Young J. , King, Katherine S. , Takahashi, Paul Y. , Juhn, Y J , Wi, Chung-Ii , Miller, Ryan P., Borah, Bijan J. , Yao, Xiaoxi , Noseworthy, Peter A.

Journal of Primary Care & Community Health | August 30, 2023 | Volume: 14 | Issue: No issue available | Pages: No page available

10.1177/21501319231194967 Get It

Introduction: Using a digital process that leverages electronic health records (EHRs) can ease many of the challenges presented by the traditional enrollment process for clinical trials. We tested if automated batch enrollment using a technology-enabled subject recruitment system (TESRS) enhances recruitment while preserving representation of research subjects for the study population in our study setting. Methods: An ongoing community-based prospective adult cohort study was used to randomize 600 subjects who were eligible by age and residential address to TESRS (n = 300) and standard mailing method (n = 300), respectively, for 3 months. Then, TESRS was initiated and included automatic identification of patients’ preference for being contacted (online patient portal vs postal mail) from EHRs and automatic sending out of invitation letters followed by completion of a short online survey for checking eligibility and the digital consent process if eligible. We compared (1) median time to consent from invitation sent out per subject and total subjects recruited after a 3-month recruitment period, (2) the estimated study staff’s time, and (3) representation of sociodemographic characteristics (e.g., age, sex, race, SES measured by HOUSES index, and rural residence) between subjects recruited via TESRS and those via traditional mailing methods. Results: Median age of randomized subjects (n = 600) was 63 years with 52.0% female and 89.2% non-Hispanic White. Over a 3-month period, results showed consent rate via TESRS was 13% (39/297) similar to 11% (31/295) via standard mailing. However, recruitment was significantly faster with the TESRS approach (median 7 vs 26 days) given the study staff’s effort. Study staff’s time saved by using TESRS compared to standard mailing approach was estimated at 40 min per subject (equivalent to 200 h for 300 subjects). No significant differences in characteristics of research subjects from the study population were found. Conclusion: Our study demonstrated the utility of TESRS as a subject recruitment digital technology which significantly enhanced the recruitment effort while reducing the study staff burden of recruitment while maintaining the consistency of characteristics of recruited subjects. The strategy and support for implementing and testing TESRS in other study settings should be considered.