Original article Psychometric validation of the Cardiac Rehabilitation Barriers Scale

Objective: The purpose of this study was to investigate the factor structure and psychometric proper-ties of the Cardiac Rehabilitation Barriers Scale (CRBS). Design, setting, and participants: In total, 2636 cardiac inpatients from 11 hospitals completed a survey. One year later, participants completed a follow-up survey, which included the CRBS. A subsample of patients also completed a third survey which included the CRBS, the Cardiac Rehabilitation Enrolment Obstacles scale, and the Beliefs About Cardiac Rehabilitation scale three weeks later. The CRBS asked participants to rate 21 cardiac rehabilitation barriers on a five-point Likert scale regardless of cardiac rehabilitation referral or enrolment. Results: Maximum likelihood factor analysis with oblique rotation resulted in a four-factor solution: perceived need/healthcare factors (eigenvalue 6.13, Cronbach’s a .89), logistical factors (eigen-value 5.83, Cronbach’s a .88), work/time conflicts (eigenvalue 3.78, Cronbach’s a .71), and comor-bidities/functional status (eigenvalue 4.85, Cronbach’s a .83). Mean total perceived barriers were significantly greater among non-enrollees than cardiac rehabilitation enrollees (P<.001). Convergent validity with the Beliefs About Cardiac Rehabilitation and Cardiac Rehabilitation Enrolment Obstacle