期刊
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
卷 66, 期 6, 页码 645-655出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jacc.2015.06.022
关键词
acute coronary syndromes; population perspective; survival
资金
- National Heart, Lung, and Blood Institute [F30HL120498-01A1, U01 HL105270-05]
- NIGMS Medical Scientist Training Program [T32GM07205]
BACKGROUND Most studies of sex and race differences after acute myocardial infarction (AMI) have not taken into account differences in life expectancy in the general population. Years of potential life lost (YPLL) is a metric that takes into account the burden of disease and can be compared by sex and race. OBJECTIVES This study sought to determine sex and race differences in long-term survival after AMI using life expectancy and YPLL to account for differences in population-based life expectancy. METHODS Using data from the Cooperative Cardiovascular Project, a prospective cohort study of Medicare beneficiaries hospitalized for AMI between 1994 and 1995 (N = 146,743), we calculated life expectancy and YPLL using Cox proportional hazards regression with extrapolation using exponential models. RESULTS Of the 146,743 patients with AMI, 48.1% were women and 6.4% were black; the average age was 75.9 years. Post-AMI life expectancy estimates were similar for men and women of the same race but lower for black patients than white patients. On average, women lost 10.5% (SE 0.3%) more of their expected life than men, and black patients lost 6.2% (SE 0.6%) more of their expected life than white patients. After adjustment, women still lost an average of 7.8% (0.3%) more of their expected life than men, but black race became associated with a survival advantage, suggesting that racial differences in YPLL were largely explained by differences in clinical presentation and treatment between black and white patients. CONCLUSIONS Women and black patients lost more years of life after AMI, on average, than men and white patients, an effect that was not explained in women by clinical or treatment differences. (C) 2015 by the American College of Cardiology Foundation.
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