Endpoints
thrombosis, bleeding
THROMBOSIS, PULMONARY EMBOLISM, BLEEDING, DEEP VEIN THROMBOSIS, THROMBOEMBOLIC EVENTS, RENAL VEIN THROMBOSIS, EVENTS
The primary outcomes were the incidence rates of thrombosis and bleeding. Thromboembolic events were confirmed by ultrasound (for deep vein thrombosis), renal magnetic resonance venography (for renal vein thrombosis), or computed tomography pulmonary ventilation-perfusion scan (for pulmonary embolism). Major bleeding referred to any of the following: fatal bleeding, two symptomatic bleeding events at a critical site, bleeding causing the Hb level to drop by ≥ 20 g/L (1.24 mmol/L), or bleeding requiring the transfusion of two or more units of whole blood or red blood cells [