부산대학교 도서관

Background: Among persons with stage B heart failure (HF) (subclinical cardiac dysfunction), diabetes is associated with markedly increased risk of progression to clinical HF. Whether stage B HF indicates greater risk for other cardiovascular disease (CVD) outcomes in the presence of diabetes is unknown.Methods: We included ARIC Visit 5 (2011-13) participants without clinical HF who met criteria for stage A (HF risk factors) or stage B (subclinical cardiac dysfunction by echocardiogram or elevated cardiac biomarkers) HF. Across HF stages A and B, we calculated incidence rates and their differences and used Cox models to estimate hazard ratios for overall mortality, CVD mortality, coronary heart disease (CHD), and HF associated with controlled diabetes (HbA1c <7%) and uncontrolled diabetes (HbA1c ≥ 7%), compared to no diabetes.Results: 4,774 participants (mean age 75.4, 58.3% women, 20.2% black) were followed for a median 7.3 years, with 867 deaths, 237 CVD deaths, 228 CHD events, and 470 HF events. There were significant additive interactions (increased absolute risk) associated with uncontrolled diabetes (vs. no diabetes) for total mortality, CVD death, CHD, and HF for stage B, but not stage A (Table). The incidence rate differences (per 1000 person-years) associated with uncontrolled diabetes (vs. no diabetes) were greater in stage B vs stage A for all outcomes (Table). In multivariable adjusted models, uncontrolled diabetes (vs. no diabetes) was associated with statistically significant hazard ratios (increased relative risk) for all CVD outcomes in stage B, but did not have significant associations with any CVD outcomes in stage A (Table).Conclusion: In stage B HF, diabetes is associated with global CVD risk. Intensive preventive efforts to avert various forms of CVD may be indicated for those with diabetes and subclinical cardiac dysfunction.