Table 5.
The area under the curve, cut-off values, sensitivity, specificity negative predictive value, and positive predictive value & pairwise comparison of scoring systems for predicting mechanical ventilation (Total n = 58).
| Outcome | Mechanical Ventilation | ||
|---|---|---|---|
| Scores | REMS | MEWS | SCS |
| AUC | 0.964 | 0.996 | 0.982 |
| 95% CI of AUC | 0.912 to 1.000 | 0.983 to 1.000 | 0.950 to 1.000 |
| P-value | <0.001a | <0.001a | <0.001a |
| Cut-off | >6 | >8 | >11 |
| Sens (%) | 100.0 | 100.0 | 100.0 |
| Spec (%) | 91.1 | 98.2 | 96.4 |
| PPV (%) | 28.6 | 66.7 | 50.0 |
| NPV (%) | 100.0 | 100.0 | 100.0 |
| Accuracy (%) | 91.4 | 98.3 | 96.6 |
| Pairwise comparisons of AUCs | REMS vs. MEWS = 0.130 REMS vs. SCS = 0.152 MEWS vs. SCS = 0.218 |
||
AUC: area under the curve; ICU: intensive care unit; CI: confidence interval; PPV: positive predictive value; NPV: negative predictive value; REMS: rapid emergency medicine score; SCS: simple clinical score; MEWS: Modified Early Warning Score; P-values are based on the Mann-Whitney test.
aSignificant at p < 0.05.