Table 5: Summary of ROC curve of CRB-65, MEWS and qSOFA scores in association with need for mechanical ventilation.
Predictor |
Cut off |
Sensitivity |
Specificity |
PPV |
NPV |
LR+ |
LR- |
AUC (95% CI) |
CRB-65 |
> 2 |
30% |
84.75% |
40% |
78.12% |
1.9667 |
0.8260 |
0.6335 (0.54 to 0.72) |
MEWS |
> 4 |
62.50% |
65.25% |
37.88% |
83.70% |
1.7988 |
0.5747 |
0.6564 (0.55 to 0.76) |
qSOFA |
> 2 |
42.50% |
77.97% |
39.53% |
80% |
1.9288 |
0.7375 |
0.5938 (0.49 to 0.69) |