ArticleEuropean cardiology2024
Sex Difference in 5-year Relative Survival Following Percutaneous Coronary Intervention.
Article in European cardiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Survival rates following percutaneous coronary intervention (PCI) show variability across studies, particularly regarding sex-specific outcomes. Relative survival analysis, which considers survival patterns in sex-and age-matched general populations, could help explain this variability. Methods: In a 2011 nationwide South Korean PCI cohort study with 48,783 patients, all-cause death was assessed as the primary outcome over 5 years. Observed and relative survival rates at 5 years conditional on surviving 0 days, 30 days, 1 year, and 2 years were assessed. Sex-specific differences in clinical characteristics were adjusted using propensity score-matching. Results: In the unadjusted analyses, 15,710 females had more cardiovascular risk factors than 33,073 males. Both observed survival (HR 1.28; 95% CI [1.22-1.34]) and relative survival (HR 1.21; 95% CI [1.16-1.27]) were lower in females than males (all p<0.001). In the analyses of 14,454 matched pairs, females showed higher observed survival (HR 0.78; 95% CI [0.74-0.82]), but lower relative survival (HR 1.19; 95% CI [1.13-1.26]), compared to males (all p<0.001). This trend was particularly notable in females aged 60 years or older. These findings persisted in analyses conditional on surviving 30 days, 1 year and 2 years. Conclusion: The adjusted 5-year relative survival of older females was lower than that of age-matched males, highlighting the need for the excessive risk reduction in older females undergoing PCI.
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