Assessment of factors affecting mortality in geriatric patients with warfarin overdose.

Our study results revealed that male gender, advanced age, and hepatic and renal dysfunctions were the predictors of in-hospital mortality in the elderly with warfarin overdose. In order to avoid serious warfarin-related complications in the older age groups, particularly when there is renal or hepatic dysfunction, patients should be informed about minor warning side effects of warfarin, INR levels should be more frequently checked, and patients should have more strict follow-up schedules.