Table 2 The criterion validity of the instrument for identifying delirium at a different cutoff value
Cutoff | Youden Index | % (95% Confidence Interval) | Likelihood Ratio (95% Confidence Interval) | ||
|---|---|---|---|---|---|
sensitivity | specificity | Positive | Negative | ||
2.05 | 0.20 | 90.0 (82.4—94.7) | 29.9 (26.5—33.5) | 1.28 (1.19—1.39) | 0.33 (0.19—0.59) |
11.14 | 0.47(max) | 61.8 (52.0—70.8) | 85.4 (82.4—87.9) | 4.22 (3.34—5.34) | 0.45 (0.35—0.57) |
12.27 | 0.45 | 55.5 (45.7—64.8) | 90.0 (87.4—92.1) | 5.54 (4.18—7.34) | 0.50 (0.40—0.61) |