PPV (%) | NPV (%) | Sensitivity (%) | Specificity (%) | AUC | p Value | |
Prediction of right ventricular strain on CTPA | ||||||
D-dimer ⩾1000 ng/ml | 32.8 | 97.0 | 95.1 | 44.9 | 0.74 (0.70 to 0.78) | <0.001 |
Troponin ⩾0.02 | 74.2 | 70.3 | 51.1 | 86.7 | 0.69 (0.65 to 0.73) | <0.001 |
CRP >100 mg/l | 10.5 | 91.8 | 25.0 | 79.8 | 0.55 (0.50 to 0.60) | 0.3 |
Prediction of 30-day mortality | ||||||
D-dimer ⩾1000 ng/ml | 10.4 | 95.7 | 86.7 | 28.2 | 0.70 (0.62 to 0.78) | 0.01 |
Troponin ⩾0.02 | 15.2 | 97.0 | 58.3 | 80.7 | 0.70 (0.62 to 0.78) | 0.02 |
CRP >100 mg/l | 15.0 | 89.3 | 31.0 | 76.6 | 0.54 (0.48 to 0.59) | 0.5 |
AUC, area under the receiver operator characteristic curve; CRP, C-reactive protein; CTPA, computerised tomography pulmonary angiogram; NPV, negative predictive value; PPV, positive predictive value.