Relationship between Physical Inactivity and Long-term Outcome in Patients Aged≥80 Years with Acute Coronary Syndrome

Abstract

Physical inactivity is very common in octogenarians. However, association between physical inactivity and mortality in octogenarians with acute coronary syndrome (ACS) remains unclear. In this study, we aimed to investigate association between physical inactivity and allcause mortality in octogenarian patients with ACS. In this study, we included a total of 353 hospitalized patients, aged >80 years, with ACS during the period of 5-year follow-up. The association between physical inactivity and all-cause mortality was analyzed by multivariable Cox aggression. Of the enrolled patients, 132 (37.4%) were defined as physically inactive, and 221 (62.6%) as physically active. Patients with physical inactivity tended to have lower survival rate (21.2% vs. 56.5%, P<0.001) and higher mortality rate (78.8% vs. 43.5%, PcO.OOl), and had a worse long-term outcome than those with physical activity (chi-square=27.52, and log rank PcO.OOl). The physical inactivity was still an independent predictor for long-term allcause mortality independent of confounders including age, prior heart failure, stroke, ejection fraction, beta-blocker, clopidogrel and percutaneous coronary intervention (HR: 2.35, 95% CI: 1.26-4.37, P=0.007). Our study demonstrates that physical inactivity is independently related to increased all-cause mortality in octogenarians with ACS.

Keywords

physical inactivity / octogenarian / acute coronary syndrome / mortality

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