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Full-Text Articles in Rheumatology
Factors Associated With Participant Attrition In A Longitudinal, Survey-Based Rheumatic Disease Databank, Kathryn A. Grafel
Factors Associated With Participant Attrition In A Longitudinal, Survey-Based Rheumatic Disease Databank, Kathryn A. Grafel
Capstone Experience
Introduction: Participant attrition is a problem common to many longitudinal studies, and when it occurs nonrandomly, it can impact the study’s validity and generalizability. Identifying factors associated with attrition can help to detect bias and aid in developing targeted interventions to reduce attrition. Methods: Logistic regression and Cox proportional hazards regression models were constructed separately for patients with rheumatoid arthritis, systemic lupus erythematosus, and other rheumatic diseases who participated in the FORWARD study between 1998 and 2018. Results: Patient characteristics associated with attrition included male sex, younger age, non-White race, and less education, each of which was identified in multiple …