Atherosclerotic risk genotypes and recurrent coronary events after myocardial infarction.

Published

Journal Article

The association of a group of prespecified atherosclerotic risk genotypes with recurrent coronary events (coronary-related death, nonfatal myocardial infarction, or unstable angina) was investigated in a cohort of 1,008 patients after infarction during an average follow-up of 28 months. We used a carrier-ship approach with time-dependent survivorship analysis to evaluate the average risk of each carried genotype. Contrary to expectation, the hazard ratio for recurrent coronary events per carried versus noncarried genotype was 0.89 (95% confidence interval 0.80 to 0.99, p = 0.03) after adjustment for relevant genetic, clinical, and environmental covariates. This hazard ratio, derived from the 7 prespecified genotypes, indicated an average 11% reduction in the risk of recurrent coronary events per carried versus noncarried genotype. At 1 year after hospital discharge, the cumulative probability of recurrent coronary events was 26% in those who carried < or =1, 20% for those with 2 to 4, and 13% for those with > or =5 of these genotypes (p = 0.02). This unexpected risk reversal is a likely consequence of changes in the mix of risk factors in pre- and postinfarction populations. In conclusion, this under appreciated, population-based, risk-reversal phenomenon may explain the inconsistent associations of genetic risk factors with outcome events in previous reports involving coronary populations with different risk attributes.

Full Text

Duke Authors

Cited Authors

  • Moss, AJ; Ryan, D; Oakes, D; Goldstein, RE; Greenberg, H; Bodenheimer, MM; Brown, MW; Case, RB; Dwyer, EM; Eberly, SW; Francis, CW; Gillespie, JA; Krone, RJ; Lichstein, E; MacCluer, JW; Marcus, FI; McCarthy, J; Sparks, CE; Zareba, W

Published Date

  • July 2005

Published In

Volume / Issue

  • 96 / 2

Start / End Page

  • 177 - 182

PubMed ID

  • 16018837

Pubmed Central ID

  • 16018837

Electronic International Standard Serial Number (EISSN)

  • 1879-1913

International Standard Serial Number (ISSN)

  • 0002-9149

Digital Object Identifier (DOI)

  • 10.1016/j.amjcard.2005.03.039

Language

  • eng