Abstract
Abstract Background Heart failure (HF) is the leading cause of readmission and hospitalization. Purpose This study examined the associations and clinical utilities of genetic, sociodemographic, lifestyle, laboratory, and clinical risk factors on HF aggravation. Methods Data were from 5,345 UK Biobank middle-aged adults with established HF at enrolment. We performed Cox proportional hazard regression analyses to investigate the associations related to HF admission after enrolment utilizing 24 variables encompassing sociodemographic, clinical, lifestyle, and laboratory data. To assess the impact of genetic factors, we additionally adjusted each polygenic risk score (PRS) for the three medical histories: hypertension, atrial fibrillation (AF), and coronary heart disease (CHD), where the hazard ratios were statistically significant. Results Over a median follow-up of 11.5 [10.9-12.2] years, 247 (4.6%) HF admission events occurred. Among the 24 variables, statistically significant hazard ratios were observed for 10 variables, with hypertension (3.31, 2.19-5.02), AF (2.06, 1.53-2.75), current smoking (1.63, 1.09-2.46), and coronary heart disease (1.58, 1.17-2.13) showing the highest hazard ratios, while female gender (0.65, 0.46-0.91) exhibited the smallest hazard ratio. After adjusting for each PRS individually, HTN PRS (HR 1.06, 0.94-1.21) and AF PRS (HR 1.02, 0.90-1.16) were not statistically significant, whereas CHD PRS (HR 1.15, 1.02-1.31) showed significance in relation to HF admission. In the HF admission prediction model, the C index was 0.859 (0.838-0.880) with clinical variables, and it marginally increased to 0.864 (0.843-0.885) when all factors, including the genetic factor, were applied. Conclusions Sociodemographic, clinical, laboratory, lifestyle, and genetic factors are each associated with HF aggravation with male gender, hypertension, AF, low eGFR, cigarette smoking, and CHD PRS.
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