Abstract
We investigated isolated and joint effects of early menopause (occurrence before 45 y of age) and high-sensitivity cardiac troponin T elevation (hs-cTnT ≥ 14 ng/L) on heart failure (HF) incidence in postmenopausal women. We included 2,276 postmenopausal women, aged 67-90 years, with hs-cTnT measurements and without prevalent HF from the Atherosclerosis Risk in Communities study Visit 5 (2011-2013). Women were categorized according to early menopause and hs-cTnT group. Cox proportional hazards models were used for analysis. Over a median follow-up of 5.5 years, we observed 104 HF events. The incidence rates of HF were greater in women with hs-cTnT elevation when compared to those without hs-cTnT elevation. In unadjusted analysis, the hazard ratios for incident HF were threefold greater in women with hs-cTnT elevation, with or without early menopause, (3.03 [95% CI, 1.59-5.77]) and (3.29 [95% CI, 2.08-5.21]), respectively, but not significantly greater in women with early menopause without hs-cTnT elevation, when compared to women with neither early menopause nor hs-cTnT elevation at Visit 5. After adjusting for HF risk factors and NT-pro B-type natriuretic peptide, these associations were attenuated and became nonsignificant for women with hs-cTnT elevation, but became stronger and significant for women with early menopause without hs-cTnT elevation (2.39 [95% CI, 1.28-4.46]). Irrespective of early menopause status, hs-cTnT elevation is associated with greater HF incidence but this association is partially explained by HF risk factors. Even in the absence of hs-cTnT elevation, early menopause is significantly associated with HF incidence after accounting for HF risk factors.
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