CAM-ICU | Mean length of stay in days (SD) | P valuea | NEECHAM scale | Mean length of stay in days (SD) | P valueb |
---|---|---|---|---|---|
Delirium | 17.5 (14.5) | <0.001 | Delirium | 18.5 (15.1) | <0.001 |
 |  |  | Mild confusion | 7.0 (6.1) |  |
No delirium | 5.0 (5.9) | Â | At risk | 4.0 (2.7) | Â |
 |  |  | Normal | 2.8 (1.6) |  |