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  • Title: Loss of the Mexican American survival advantage after ischemic stroke.
    Author: Morgenstern LB, Brown DL, Smith MA, Sánchez BN, Zahuranec DB, Garcia N, Kerber KA, Skolarus LE, Meurer WJ, Burke JF, Adelman EE, Baek J, Lisabeth LD.
    Journal: Stroke; 2014 Sep; 45(9):2588-91. PubMed ID: 25074514.
    Abstract:
    BACKGROUND AND PURPOSE: Mexican Americans (MAs) were previously found to have lower mortality after ischemic stroke than non-Hispanic whites. We studied mortality trends in a population-based design. METHODS: Active and passive surveillance were used to find all ischemic stroke cases from January 2000 to December 2011 in Nueces County, TX. Deaths were ascertained from the Texas Department of Health through December 31, 2012. Cumulative 30-day and 1-year mortality adjusted for covariates was estimated using log-binomial models with a linear term for year of stroke onset used to model time trends. Models used data from the entire study period to estimate adjusted mortality among stroke cases in 2000 and 2011 and to calculate projected ethnic differences. RESULTS: There were 1974 ischemic strokes among non-Hispanic whites and 2439 among MAs. Between 2000 and 2011, model estimated mortality declined among non-Hispanic whites at 30 days (7.6% to 5.6%; P=0.24) and 1 year (20.8% to 15.5%; P=0.02). Among MAs, 30-day model estimated mortality remained stagnant at 5.1% to 5.2% (P=0.92), and a slight decline from 17.4% to 15.3% was observed for 1-year mortality (P=0.26). Although ethnic differences in 30-day (P=0.01) and 1-year (P=0.06) mortality were apparent in 2000, they were not so in 2011 (30-day mortality, P=0.63; 1-year mortality, P=0.92). CONCLUSIONS: Overall, mortality after ischemic stroke has declined in the past decade, although significant declines were only observed for non-Hispanic whites and not MAs at 1 year. The survival advantage previously documented among MAs vanished by 2011. Renewed stroke prevention and treatment efforts for MAs are needed.
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