Table 2.
Mini mental state exam (MMSE) domain scores for all patients, those who did and did not develop delirium, and those who developed hypoactive, hyperactive, or mixed delirium. Scores are presented as mean (standard deviation; SD).
| Domain | All (n = 594) mean (SD) | Delirium (n=137) m mean (SD) | No Delirium (n=457) m mean (SD) | p-value(1) | Hypoactive Only (n=108) mean (SD) | Hyperactive Only (n=10) M mean (SD) | Both (n=19) mean (SD) | p-value(2) |
|---|---|---|---|---|---|---|---|---|
| All domains (range 0–30) | 28.6 (1.9) | 27.6 (2.5) | 28.8 (1.6) | <0.001 | 27.8 (2.4) | 27.8 (2.0) | 26.4 (3.1) | 0.13 |
| Orientation-Place (range 0–5) | 4.7 (0.5) | 4.6 (0.6) | 4.8 (0.5) | <0.001 | 4.6 (0.6) | 4.8 (0.4) | 4.4 (0.8) | 0.41 |
| Orientation-Time (range 0–5) | 4.9 (0.3) | 4.9 (0.4) | 5.0 (0.2) | .32 | 5.0 (0.2) | 5.0 (0.0) | 4.5 (0.9) | 0.003 |
| Working memory (range 0–5) | 4.5 (1.1) | 4.1 (1.5) | 4.6 (0.8) | <0.001 | 4.2 (1.6) | 3.9 (1.7) | 3.9 (1.3) | 0.28 |
| Word Recall (range 0–3) | 2.5 (0.7) | 2.3 (0.9) | 2.6 (0.7) | <0.001 | 2.3 (0.8) | 2.3 (0.7) | 1.9 (1.0) | 0.18 |
| Language (range 0–8) | 7.9 (0.3) | 7.8 (0.4) | 7.9 (0.3) | <0.001 | 7.8 (0.4) | 7.8 (0.4) | 7.8 (0.4) | 0.98 |
| Visuoconstruction (range 0–1) | 1.0 (0.2) | 0.9 (0.3) | 1.0 (0.2) | 0.12 | 0.9 (0.2) | 1.0 (0.0) | 0.8 (0.4) | 0.12 |
(1)
Comparison of Delirium to No-delirium with Wilcoxon-Rank Sum test;
(2)
Comparison of hypoactive, hyperactive, and both delirium subtypes with Kruskal-Wallis test;
Note: Registration (three word repetition) is not reported as all patients scored accurately (3 out of 3).