Prevalence and impact of diabetes mellitus in patients with acute myocardial infarction: a 10-year experience.

BACKGROUND

Diabetes mellitus is associated with a higher incidence of acute myocardial infarction.

OBJECTIVE

To study the prevalence and outcome of patients with diabetes among patients with acute myocardial infarction.

METHODS

Retrospectively, patients who presented with acute myocardial infarction in a 10-year period were identified from the coronary care unit database.

RESULTS

A total of 1598 Qatari patients were admitted with acute myocardial infarction, 863 (54%) of them had diabetes mellitus (females 68.5% vs males 48.3%; P < .001). In-hospital mortality rate was non-significantly higher in diabetic patients (18% vs 15% P = .15). Aspirin (odds ratio 2.39, 95% confidence interval 1.96-2.90, P = .003] and beta-blocker use (odds ratio 1.75, 95% CI 1.21-2.52, P = .0001) were independently associated with reduced mortality risk.

CONCLUSIONS

The prevalence of diabetes mellitus among patients with acute myocardial infarction in a geographically defined population in the developing world is high with a trend for poor outcomes. However, mortality was not significantly higher in diabetes mellitus than non-diabetes mellitus patients.