Cumulative estimates of the probability of the composite of any confirmed symptomatic thromboembolic complication, whether venous or arterial, and incidental (asymptomatic) pulmonary embolism during the entire study period. Symptomatic events included pulmonary embolism, upper- or lower-extremity deep- or superficial-vein thrombosis, acute myocardial infarction, stroke or transient ischemic attack, acute lower-limb ischemia, and any other symptomatic event confirmed by an objective test. Incidental pulmonary embolisms were those discovered on scans performed for reasons other than suspected pulmonary embolism. Dotted lines indicate the 95% CI limits (competing risk analysis).