Objective To examine a relationship between statin intensity and heart failure (HF) incidence in diabetes.
Research design and methods We performed a retrospective cohort study of patients with type 2 diabetes (n=600; age, 66.3 years; men, 68%). Patients were categorized into three groups by baseline statin treatments—moderate-intensity, low-intensity, or no statin—and the independent association between the statin category and HF hospitalization during follow-up was examined.
Results Over the course of the median 6-year follow-up, 17.7% of the patients were hospitalized for HF. Cox regression analysis revealed a significant association between the baseline statin category and HF incidence (p=0.002), independently of age, sex, hypertension, B-type natriuretic peptide, glycated hemoglobin, estimated glomerular filtration rate, and low-density lipoprotein (LDL) cholesterol levels. The moderate-intensity statin group had a significantly lower risk for HF than the low-intensity statin group with an adjusted HR of 0.31 (95% CI 0.13 to 0.65, p=0.0014). Interestingly, among patients with prevalent coronary artery diseases (CAD) and with baseline LDL controlled to less than 100 mg/dL, the frequency of HF was still significantly lower in the moderate-intensity group than in the low-intensity group or the no statin group. The effect of baseline statin category on HF was independent of incident CAD events during follow-up.
Conclusions In type 2 diabetes, moderate-intensity statins, in comparison to low-intensity or no statin, were associated with lower HF incidence independently of LDL levels or of CAD events.
- Heart Failure
- Cardiovascular Disease Risk
- Coronary Artery Disease
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