Association of mortality with years of education in patients with ST-segment elevation myocardial infarction treated with fibrinolysis.

Published

Journal Article

OBJECTIVES: The purpose of this study was to examine the association between lower socioeconomic status (SES), as ascertained by years of education, and outcomes in patients with acute ST-segment elevation myocardial infarction (STEMI). BACKGROUND: Previous studies have shown an inverse relationship between SES and coronary heart disease and mortality. Whether a similar association between SES and mortality exists in STEMI patients is unknown. METHODS: We evaluated 11,326 patients with STEMI in the GUSTO-III (Global Use of Strategies to Open Occluded Coronary Arteries) trial study from countries that enrolled >500 patients. We evaluated clinical outcomes (adjusted using multivariate regression analysis) according to the number of years of education completed. RESULTS: One-year mortality was inversely related to years of education and was 5-fold higher in patients with <8 years compared with those with >16 years of education (17.5% vs. 3.5%, p < 0.0001). The strength of the relationship between education and mortality varied among different countries. Nonetheless, years of education remained an independent correlate of mortality at day 7 (hazard ratio per year of increase in education: 0.86; 95% confidence interval: 0.83 to 0.88) and also between day 8 and 1 year (hazard ratio per year of increase in education: 0.96; 95% confidence interval: 0.94 to 0.98), even after adjustment for baseline characteristics and country of enrollment. CONCLUSIONS: When the number of years of education was used as a measure of SES, there was an inverse relationship such that significantly higher short-term and 1-year mortality existed beyond that accounted for by baseline clinical variables and country of enrollment. Future studies should account for and investigate the mechanisms underlying this link between SES and cardiovascular disease outcomes.

Full Text

Duke Authors

Cited Authors

  • Mehta, RH; O'Shea, JC; Stebbins, AL; Granger, CB; Armstrong, PW; White, HD; Topol, EJ; Califf, RM; Ohman, EM

Published Date

  • January 11, 2011

Published In

Volume / Issue

  • 57 / 2

Start / End Page

  • 138 - 146

PubMed ID

  • 21211684

Pubmed Central ID

  • 21211684

Electronic International Standard Serial Number (EISSN)

  • 1558-3597

Digital Object Identifier (DOI)

  • 10.1016/j.jacc.2010.09.021

Language

  • eng

Conference Location

  • United States