Hazard ratios of major bleeding events with anticoagulant use stratified by cohort characteristics.

<p>Abbreviations: CI, confidence interval; GFR, glomerular filtration rate; HR, hazard ratio; UFH, unfractionated heparin.</p>a<p>Vascular disease is defined as presence of coronary artery disease or peripheral vascular disease.</p>b<p>Dual antiplatelets is defined as dual use of aspirin and clopidogrel.</p><p>Hazard ratios of major bleeding events with anticoagulant use stratified by cohort characteristics.