Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT

Introduction: Although the impact of sex on patient outcomes for heart failure (HF) with preserved ejection fraction (HFpEF) has been reported, it is still unclear whether this impact is applicable for elderly patients with HFpEF. This study was conducted as a secondary analysis from a large randomi...

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Main Authors: Jiaxing Sun, Shi Tai, Yanan Guo, Liang Tang, Hui Yang, Xuping Li, Zhenhua Xing, Liyao Fu, Shenghua Zhou
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-10-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2021.721850/full
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author Jiaxing Sun
Shi Tai
Yanan Guo
Liang Tang
Hui Yang
Xuping Li
Zhenhua Xing
Liyao Fu
Shenghua Zhou
author_facet Jiaxing Sun
Shi Tai
Yanan Guo
Liang Tang
Hui Yang
Xuping Li
Zhenhua Xing
Liyao Fu
Shenghua Zhou
author_sort Jiaxing Sun
collection DOAJ
description Introduction: Although the impact of sex on patient outcomes for heart failure (HF) with preserved ejection fraction (HFpEF) has been reported, it is still unclear whether this impact is applicable for elderly patients with HFpEF. This study was conducted as a secondary analysis from a large randomized controlled trial—The Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist Trial (TOPCAT)—to evaluate the impact of sex differences on the baseline characteristics and outcomes of HFpEF patients who were older than 70 years.Methods: Baseline characteristic of elderly patients were compared between men and women. Primary outcomes were cardiovascular (CV) mortality and HF-related hospitalization, whereas secondary outcomes were all-cause mortality and all-cause hospitalization. Cox regression models were used to determine the effect of sex differences on patient outcomes.Results: A total of 1,619 patients were included in the study: 898 (55.5%) women and 721 (44.5%) men. Age was similar between women and men. Women had fewer comorbidities but worse cardiac function than men. The rate of primary outcomes was lower in women than in men (18.4 vs. 27.5%; p < 0.001), including rate of CV mortality (8.9 vs. 14.8%; p < 0.001) and HF-related hospitalization (13.4 vs. 18.2%; p = 0.008). All-cause mortality was also lower in women than in men (15.6 vs. 25.4%; p < 0.001). After adjustment for baseline characteristics, Cox regression analysis showed that female sex was a protective factor for CV mortality [hazard ratio (HR): 0.53; 95% confidence interval (CI): 0.40–0.73], HF-related hospitalization (HR: 0.71; 95% CI: 0.55–0.93), and all-cause mortality (HR: 0.59; 95% CI: 0.47–0.75). Although spironolactone significantly reduced the rate of all-cause mortality in women even after adjusting for baseline characteristics (HR: 0.68; 95% CI: 0.48–0.96; p = 0.028), no significant multivariate association was noted between sex and treatment effects (p = 0.190).Conclusion: Among elderly patients with HFpEF, women had worse cardiac function but better survival and lower HF-related hospitalization rate than men.Clinical Trial Registration: NCT00094302 (TOPCAT). Registered October 15, 2004, https://www.clinicaltrials.gov/ct2/show/NCT00094302.
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spelling doaj.art-881a9559eb9c457897e360d524093ea32022-12-21T20:13:51ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2021-10-01810.3389/fcvm.2021.721850721850Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCATJiaxing Sun0Shi Tai1Yanan Guo2Liang Tang3Hui Yang4Xuping Li5Zhenhua Xing6Liyao Fu7Shenghua Zhou8Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Blood Transfusion, The Second Xiangya Hospital of Central South University, Changsha, ChinaDepartment of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, ChinaIntroduction: Although the impact of sex on patient outcomes for heart failure (HF) with preserved ejection fraction (HFpEF) has been reported, it is still unclear whether this impact is applicable for elderly patients with HFpEF. This study was conducted as a secondary analysis from a large randomized controlled trial—The Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist Trial (TOPCAT)—to evaluate the impact of sex differences on the baseline characteristics and outcomes of HFpEF patients who were older than 70 years.Methods: Baseline characteristic of elderly patients were compared between men and women. Primary outcomes were cardiovascular (CV) mortality and HF-related hospitalization, whereas secondary outcomes were all-cause mortality and all-cause hospitalization. Cox regression models were used to determine the effect of sex differences on patient outcomes.Results: A total of 1,619 patients were included in the study: 898 (55.5%) women and 721 (44.5%) men. Age was similar between women and men. Women had fewer comorbidities but worse cardiac function than men. The rate of primary outcomes was lower in women than in men (18.4 vs. 27.5%; p < 0.001), including rate of CV mortality (8.9 vs. 14.8%; p < 0.001) and HF-related hospitalization (13.4 vs. 18.2%; p = 0.008). All-cause mortality was also lower in women than in men (15.6 vs. 25.4%; p < 0.001). After adjustment for baseline characteristics, Cox regression analysis showed that female sex was a protective factor for CV mortality [hazard ratio (HR): 0.53; 95% confidence interval (CI): 0.40–0.73], HF-related hospitalization (HR: 0.71; 95% CI: 0.55–0.93), and all-cause mortality (HR: 0.59; 95% CI: 0.47–0.75). Although spironolactone significantly reduced the rate of all-cause mortality in women even after adjusting for baseline characteristics (HR: 0.68; 95% CI: 0.48–0.96; p = 0.028), no significant multivariate association was noted between sex and treatment effects (p = 0.190).Conclusion: Among elderly patients with HFpEF, women had worse cardiac function but better survival and lower HF-related hospitalization rate than men.Clinical Trial Registration: NCT00094302 (TOPCAT). Registered October 15, 2004, https://www.clinicaltrials.gov/ct2/show/NCT00094302.https://www.frontiersin.org/articles/10.3389/fcvm.2021.721850/fullsex differencesHFpEFbaseline characteristicsmortalityHF-related hospitalizationelderly patients
spellingShingle Jiaxing Sun
Shi Tai
Yanan Guo
Liang Tang
Hui Yang
Xuping Li
Zhenhua Xing
Liyao Fu
Shenghua Zhou
Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT
Frontiers in Cardiovascular Medicine
sex differences
HFpEF
baseline characteristics
mortality
HF-related hospitalization
elderly patients
title Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT
title_full Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT
title_fullStr Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT
title_full_unstemmed Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT
title_short Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT
title_sort sex differences in characteristics and outcomes in elderly heart failure patients with preserved ejection fraction a post hoc analysis from topcat
topic sex differences
HFpEF
baseline characteristics
mortality
HF-related hospitalization
elderly patients
url https://www.frontiersin.org/articles/10.3389/fcvm.2021.721850/full
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