Fatal PE RR (95% CI) P-Value Overall death RR (95% CI) P-Value Clinical characteristics Age >80 years     1.92 (1.36-2.69) <0.001 Cancer     3.88 (2.79-5.38) <0.001 Physical examination Laboratory tests Sat O2 levels <90% 4.03 (1.87-8.67) <0.001 2.31 (1.54-3.48) <0.001 Electrocardiogram Atrial fibrillation     2.16 (1.43-3.27) <0.001 Echocardiogram Right atrial dilatation 3.71 (1.68-8.17) <0.001 1.26 (0.90-1.77) 0.175 Right ventricle hypokinesis 1.36 (0.66-2.80) 0.407 1.34 (0.95-1.91) 0.099

Abbreviations: RR, risk ratio; CI, confidence intervals; PE, pulmonary embolism; bpm, beats per minute. Variables included in the multivariate analysis for fatal PE: cancer, chronic heart failure, heart rate >110 bpm, abnormal creatinine levels, Sat O2 levels <90%, right atrial dilatation, right ventricle hypokinesis and pulmonary artery pressure levels >35 mm Hg. Variables included in the multivariate analysis for all-cause death: age >80 years; cancer, chronic heart failure, heart rate >110 bpm, systolic blood pressure levels >100 mm Hg, atrial fibrillation, right bundle branch block, abnormal creatinine levels, Sat O2 levels <90%, right atrial dilatation, visualization of thrombus, right ventricle hypokinesis and pulmonary artery pressure levels >35 mm Hg.

Table 4: Multivariable analysis for 30-day mortality.