Table 1.
Descriptive statistics for patients with and without dementia
| Descriptive variable | Dementia N = 270 | No dementia N = 1199 | Significance p* |
|---|---|---|---|
| Age; M (s.d.) | 83.25 (7.13) | 77.60 (7.08) | <0.001 |
| Female; N (%) | 146 (54.1) | 644 (53.7) | n.s. |
| Discipline; N (%) | <0.01 | ||
| Internal medicine | 157 (58.1) | 580 (48.4) | |
| Trauma surgery | 58 (21.5) | 237 (19.8) | |
| General surgery | 32 (11.9) | 208 (17.3) | |
| Others | 23 (8.5) | 174 (14.5) | |
| Days admission to examination; M (s.d.) | 7.06 (7.25) | 7.30 (9.33) | n.s. |
| Delirium; N (%) | 48 (17.8) | 27 (2.3) | <0.001 |
| Modified NPI-Q; M (s.d.) | |||
| Number of symptoms | 2.11 (1.98) | 0.71 (1.20) | <0.001 |
| Sum of distress ratings | 6.62 (6.15) | 3.28 (4.54) | <0.001 |
M, mean; s.d., standard deviation; NPI-Q, Neuropsychiatric Inventory; n.s. = p > 0.05.
*
χ2 tests for categorical and independent t tests for continuous variables.