Table 1.
Descriptive data on analysis measures
| N | Mean | SD | |
|---|---|---|---|
| Vitamin D concentration (µg/L) | 140 | 21.35 | 10.28 |
| GDS score at admission | 127 | 14 | 7.1 |
| HDRS score at admission | 131 | 11.4 | 6.1 |
| Difference of GDS score | |||
| Between admission and discharge | 96 | − 5.2 | 6.6 |
| Between admission and 6 weeks after discharge | 84 | − 4.2 | 7.8 |
| Difference of the HDRS score between admission and discharge | 96 | − 6.1 | 5.3 |
| Days spent in day-care unit | 140 | 36.4 | 20.8 |
GDS geriatric depression scale, HDRS Hamilton depression rating scale, SD standard deviation