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Effectiveness of three models for comprehensive cardiovascular disease risk reduction

      Abstract

      Cost and accessibility contribute to low participation rates in phase 2 cardiac rehabilitation programs in the United States. In this study, we compared the clinical effectiveness of 2 less costly and potentially more accessible approaches to cardiovascular risk reduction with that of a contemporary phase 2 cardiac rehabilitation program. Low- or moderate-risk patients (n = 155) with coronary artery disease (CAD) were randomly assigned to 12 weeks of participation in a contemporary phase 2 cardiac rehabilitation program (n = 52), a physician supervised, nurse–case-managed cardiovascular risk reduction program (n = 54), or a community-based cardiovascular risk reduction program administered by exercise physiologists guided by a computerized participant management system based on national clinical guidelines (n = 49). In all, 142 patients (91.6%) completed testing at baseline and after 12 weeks of intervention. For patients with abnormal (i.e., not at the goal level) baseline values, statistically significant (p ≤0.05) improvements were observed with all 3 interventions for multiple CAD risk factors. No statistically significant risk factor differences were observed among the 3 programs. For patients with a baseline maximal oxygen uptake <7 metabolic equivalents, cardiorespiratory fitness increased to a greater degree in patients in the cardiac rehabilitation program and the community-based program versus the physician-supervised, nurse– case-managed program. These data have important implications for cost containment and increasing accessibility to clinically effective comprehensive cardiovascular risk reduction services in low- or moderate-risk patients with CAD.
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