Table 3. Comparison of 3 NICE Scores and Delirium Risk in the Derivation and Confirmation Cohorts.
| Validated Prediction Rule and Delirium Risk (Points) | Derivation | Confirmation | ||
|---|---|---|---|---|
| No. (%) With Delirium (n = 27 625) |
AUROC Curve (95% CI) | No. (%) With Delirium (n = 11 752) |
AUROC Curve (95% CI) | |
| eNICE score | ||||
| Low (0-2) | 75 (1.4) | 0.81 (0.80-0.82) | 27 (1.0) | 0.83 (0.81-0.84) |
| Intermediate (3-5) | 415 (3.5) | 136 (2.6) | ||
| High (6-9) | 917 (11.9) | 344 (11.3) | ||
| Very high (10-18) | 936 (38.9) | 315 (36.0) | ||
| Pendlebury NICE score | ||||
| Low (0-1) | 71 (0.6) | 0.87 (0.86-0.88) | 30 (0.6) | 0.87 (0.86-0.88) |
| Intermediate (2-4) | 940 (7.0) | 378 (6.8) | ||
| High (5-7) | 1332 (41.0) | 414 (37.2) | ||
| Consolidated NICE score | ||||
| Low (0-2) | 252 (1.1) | 0.91 (0.91-0.92) | 103 (1.1) | 0.91 (0.90-0.92) |
| Intermediate (3-4) | 990 (29.4) | 371 (27.7) | ||
| High (5-6) | 1101 (50.9) | 348 (46.5) | ||
Abbreviations: AUROC, area under the receiver operating characteristic; eNICE, electronic National Institute for Health and Care Excellence; NICE, National Institute for Health and Care Excellence.