Demographic and clinical characteristics of the three patient groups
| Delirium (n=20) | Dementia (n=18) | Control (n=20) | Group comparisons | |
| No (%) male | 6 (30) | 7 (39) | 6 (30) | χ2=0.54, p=0.8 |
| Age (years): mean (SD) | 81.7 (8.8) | 82.1 (6.4) | 79.9 (8.0) | F=0.44,p=0.64 |
| MDAS: median score (range) | 12.5 (7–19) | 5.0 (2–9) | 2.0 (0–5) | K-W χ2=23.39, p<0.001 |
| MMSE: median score (range) | 16.0 (10–22) | 21.0 (12–25) | 27.0 (24–30) | K-W χ2=39.92, p<0.001 |
K-W, Kruskal–Wallis; MDAS, Memorial Delirium Assessment Scale; MMSE, Mini-Mental State Examination.