Table 2.
Diagnostic accuracy of the ICDSC administered by bedside nurses for the CAM-ICU (study nurses) as gold standard in 143 paired observations
| Instruments | Cutoff | Sensitivity % (95% CI) |
Specificity % (95% CI) |
PPV % (95%CI) |
NPV % (95% CI) |
Accuracy % (95% CI) |
|---|---|---|---|---|---|---|
| Positive CAM-ICU | ||||||
| ICDSC | 2 | 90.5 (71–97) | 72.1 (64–79) | 35.8 (24–49) | 97.8 (92–99) | 74.8 (67–81) |
| 3 | 81.0 (60–92) | 80.3 (72–86) | 41.4 (28–57) | 96.1 (90–98) | 80.4 (73–86) | |
| 4 | 81.0 (60–92) | 87.7 (81–92) | 53.1 (36–69) | 96.4 (91–99) | 86.7 (80–91) | |
| 5 | 71.4 (50–86) | 93.4 (88–97) | 65.2 (45–81) | 95 (90–98) | 90.2 (84–94) | |