Abstract 9748: Association of Home-Based Cardiac Rehabilitation With Hospitalization Among a Diverse Cohort of Women With Cardiovascular Disease: A Propensity Score-Matched Study

Abstract

Prior studies have demonstrated that home-based cardiac rehabilitation (HBCR) has similar outcomes compared to center-based cardiac rehabilitation (CBCR), however these studies have enrolled few women. The purpose of this study was to compare 12-month hospitalization rates among women who participated in HBCR and CBCR within an integrated health system in Southern California. Using a retrospective cohort design, we evaluated women referred to HBCR and CBCR in Kaiser Permanente Southern California from April 1, 2018, to April 30, 2019. HBCR involved home-based exercise for 8 weeks complemented by a smartwatch exercise monitor and telephone support. CBCR involved center-based exercise sessions three times per week for a total of 36 sessions. Attendance of ≥1 session defined participation. After propensity score matching for age, race, Charlson score, referral reason, BMI, smoking history, atrial fibrillation, hypertension, prior MI, prior stroke, and history of hospitalization in the year prior to cardiac rehabilitation start, hospitalization rates at 12 months were compared among HBCR and CBCR groups. Among 754 women who participated during the study period, 382 participated in HBCR and 372 participated in CBCR. Baseline demographics are presented in Table 1. After propensity score matching, women who participated in HBCR had similar hospitalization rates at 12 months, 17.0% (95% CI: [13.2%, 20.8%]) compared to women who participated in CBCR, 16.4% (95% CI: [12.1%, 20.8%]) (Figure 1). In a propensity-matched, racially diverse population of women with cardiovascular disease, 12-month hospitalization rates were similar between women who participated in HBCR and CBCR.