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KMID : 0338420240390010095
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The Korean Journal of Internal Medicine
2024 Volume.39 No. 1 p.95 ~ p.109
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Sex differences in clinical characteristics and long-term outcome in patients with heart failure: data from the KorAHF registry
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Kim Hyue-Mee
Kim Hack-Lyoung
Kim Myung-A
Lee Hae-Young
Park Jin-Joo
Choi Dong-Ju
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Abstract
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Background/Aims: Sex differences in the prognosis of heart failure (HF) have yielded inconsistent results, and data from Asian populations are even rare. This study aimed to investigate sex differences in clinical characteristics and long-term prognosis among Korean patients with HF.
Methods: A total of 5,625 Korean patients hospitalized for acute HF were analyzed using a prospective multi-center registry database. Baseline clinical characteristics and long-term outcomes including HF readmission and death were compared between sexes.
Results: Women were older than men and had worse symptoms with higher N-terminal pro B-type natriuretic peptide levels.
Women had a significantly higher proportion of HF with preserved ejection fraction (HFpEF). There were no significant differences in in-hospital mortality and rate of guideline-directed medical therapies in men and women. During median follow- up of 3.4 years, cardiovascular death (adjusted hazard ratio [HR], 1.38; 95% confidence interval [CI], 1.07?1.78; p = 0.014), and composite outcomes of death and HF readmission (adjusted HR, 1.13; 95% CI, 1.01?1.27; p = 0.030) were significantly higher in men than women. When evaluating heart failure with reduced ejection fraction (HFrEF) and HFpEF separately, men were an independent risk factor of cardiovascular death in patients with HFrEF. Clinical outcome was not different between sexes in HFpEF.
Conclusions: In the Korean multi-center registry, despite having better clinical characteristics, men exhibited a higher risk of all-cause mortality and readmission for HF. The main cause of these disparities was the higher cardiovascular mortality rate observed in men compared to women with HFrEF.
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KEYWORD
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Heart failure, Mortality, Prognosis, Sex difference, Women
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