Examining Patient Outcome Quality Indicators Based on Wait Time From Referral to Entry Into Cardiac Rehabilitation

PURPOSE: The purpose of this study was to examine whether meeting the Canadian Cardiovascular Society (CCS) ≤60-day wait time from cardiac rehabilitation (CR) referral to enrollment is associated with CCS patient-level quality indicator outcomes. METHODS: This pilot observational study consisted of 69 participants entering CR separated into 2 groups based on wait time (≤60-day, n = 45; >60-day, n = 24). Data were collected at baseline, and 1, 4 (CR completion), 6, and 12 months after baseline. Quality indicators for achieving a 0.5 peak metabolic equivalent (MET) improvement at CR completion, physical activity of 150 min/wk of moderate-vigorous physical activity, and CR adherence were assessed. Depressive symptoms were assessed with the Patient Health Questionnaire. RESULTS: Sixty participants completed the study (≤60-day, n = 40; >60-day, n = 20). In the ≤60-day group, 92% of participants achieved the 0.5 MET improvement upon CR completion; whereas 60% of the >60-day group met this criteria (P ≤ .05). For the 150 min/wk of moderate-vigorous physical activity and CR adherence, both groups were not significantly different at any time. Elevated depressive symptoms were initially observed in 45% of participants in the ≤60-day group and 35% in the >60-day group (NS) and decreased to 8% in the ≤60-day group compared with 30% in the >60-day group at 12 months (P ≤ .05). CONCLUSIONS: Meeting the CCS 60-day acceptable wait time is associated with improvements in METs and depressive symptoms, but not with physical activity or CR adherence. A larger observational study is warranted to explore patient-level CCS quality indicators during and after CR.