Health Insurance Status and Control of Diabetes and Coronary Artery Disease Risk Factors on Enrollment Into the Bypass Angioplasty Revascularization Investigation 2 Diabetes (BARI 2D) Trial

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PURPOSE: The purpose of this study was to examine measures of chronic disease severity and treatment according to insurance status in a clinical trial setting. METHODS: Baseline insurance status of 776 patients with type 2 diabetes and stable coronary artery disease (CAD) enrolled in the United States in the Bypass Angioplasty Revascularization Investigation 2 Diabetes (BARI 2D) trial was analyzed with regard to measures of metabolic and cardiovascular risk factor control. RESULTS: Compared with patients with private or public insurance, the uninsured were younger, more often female, and less often white non-Hispanic. Uninsured patients had the greatest burden of CAD. Patients with public insurance were treated with the greatest number of medications, had the greatest self-reported functional status, and the lowest mean glycosylated hemoglobin and low-density lipoprotein (LDL) cholesterol values. Overall, for 5 measured risk factor targets, the mean number above goal was 2.49 ± 1.18. After adjustment for demographic and clinical variables, insurance status was not associated with a difference in risk factor control. CONCLUSIONS: In the BARI 2D trial, we did not observe a difference in baseline cardiovascular risk factor control according to insurance status. An important observation, however, was that risk factor control overall was suboptimal, which highlights the difficulty in treating type 2 diabetes and CAD irrespective of insurance status.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.