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Differential item functioning of the CAHPS® In-Center Hemodialysis Survey.

ABSTRACT: PURPOSE:End-stage renal disease patients' experience of care is an integral part of the assessment of the quality of the care provided at hemodialysis centers and is needed to promote patient choice, quality improvement, and accountability. The purpose of this study is to evaluate the In-Center Hemodialysis Consumer Assessment of Healthcare Providers and Systems (ICH-CAHPS®) survey and its equivalence in different age, gender, race, and education subgroups. METHODS:The ICH-CAHPS survey was administered to 1454 patients from 32 dialysis facilities. For the characteristics compared, the sample had 756 participants younger than 65 years old, 739 men, 516 Black, 567 White, and 970 with less than high school diploma. Three different patient experience constructs were studied including nephrologist's communication and caring, quality of care and operations, and providing information to patients. We used item response theory analysis to examine the possibility of differential item functioning (DIF) by patient age, gender, race, and education separately after controlling for the other DIF characteristics and additional confounding variables including survey mode, mental, and general health status as well as duration on dialysis. RESULTS:The three constructs studied were unidimensional and no major DIF was observed on the composites. Some non-equivalences were observed when confounders were not controlled for, suggesting that such covariates can be important factors in understanding the possibility of disparity in patients' experience. CONCLUSIONS:The ICH-CAHPS is a promising survey to elicit hemodialysis patients' experience that has good psychometric properties and provides a standardized tool for assessing age, gender, race, or education disparity.

SUBMITTER: Setodji CM

PROVIDER: S-EPMC6810787 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Differential item functioning of the CAHPS® In-Center Hemodialysis Survey.

Setodji Claude M CM Peipert John D JD Hays Ron D RD

Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation 20190726 11

<h4>Purpose</h4>End-stage renal disease patients' experience of care is an integral part of the assessment of the quality of the care provided at hemodialysis centers and is needed to promote patient choice, quality improvement, and accountability. The purpose of this study is to evaluate the In-Center Hemodialysis Consumer Assessment of Healthcare Providers and Systems (ICH-CAHPS®) survey and its equivalence in different age, gender, race, and education subgroups.<h4>Methods</h4>The ICH-CAHPS s ...[more]

PMID: 31350653

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Project description:Rationale & Objective:The In-Center Hemodialysis Consumer Assessment of Healthcare Providers and Systems (ICH CAHPS) survey, introduced into the End-Stage Renal Disease Quality Incentive Program, is the only patient-reported outcome currently used for value-based reimbursement in dialysis. Current response rates are ?30% and differences in long-term clinical outcomes between survey responders and nonresponders are unknown. Study Design:Retrospective cohort study. Setting & Participants:Patients from all Dialysis Clinic Incorporated facilities from across the United States who met survey eligibility (aged ?18 years and had been treated at their facility for at least 3 months). Exposures:Patient-level demographic, clinical, and treatment-related characteristics. Outcomes:Mortality, all-cause hospitalization, and kidney transplantation. Analytical Approach:Time-to-event analyses using competing-risks models. Sensitivity analyses performed after multiple imputation for missing covariate data. Results:Among 10,395 eligible patients, 3,794 (36%) responded to the survey. During a median follow-up of 33 months, 4,588 patients died, 7,638 patients were hospitalized at least once, and 789 patients received a transplant. In multivariable models, survey response was associated with lower mortality (subdistribution hazard ratio [sHR], 0.80; 95% CI, 0.75-0.86) and hospitalization (sHR, 0.94; 95% CI, 0.89-0.99) and higher likelihood for a kidney transplant (sHR, 1.27; 95% CI, 1.10-1.46). Results were consistent across sensitivity analyses after multiple imputation for missing covariates. Limitations:Small amount of missing covariate data, baseline covariate data assigned at the first month of the 3-month survey administration period, reasons for nonresponse unknown. Conclusions:Response to the ICH CAHPS survey is associated with lower risk for mortality and hospitalization and higher likelihood for kidney transplantation. These findings suggest that survey responders are healthier than nonresponders, emphasizing the need for caution when interpreting facility-level survey results to inform quality improvement and public policy efforts and the critical need to better capture patient-reported outcomes from more vulnerable patients.

Dataset Information

Differential item functioning of the CAHPS® In-Center Hemodialysis Survey.

Publications

Differential item functioning of the CAHPS® In-Center Hemodialysis Survey.

Similar Datasets

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