Demographic data of the study population
| Variables | Total (n=459) |
| Age≥85 years, n (%) | 293 (64) |
| Female, n (%) | 344 (75) |
| Dementia, n (%) | 406 (88) |
| Duration of stay* (months), median (IQR) | 3.8 (0–25) |
| Discharge during the study period, n (%) | 193 (42) |
| Admission to hospital | 107 (23) |
| Death | 52 (11) |
| Transfer to other facilities | 18 (4) |
| Discharge to home | 16 (4) |
| Number of all drugs*, median (IQR) | 4 (2–6) |
| Received five or more drugs*, n (%) | 218 (47) |
| Number of psychotropic drugs*, median (IQR) | 0 (0–1) |
| Received one or more psychotropic medications*, n (%) | 225 (49) |
| Prescribed psychotropic drugs, n (%)† | 297 (65) |
| Prescribed benzodiazepine receptor agonists, n (%)† | 115 (25) |
| Prescribed antipsychotics, n (%)† | 127 (28) |
| Charlson Comorbidity Index, median (IQR) | 1 (1–3) |
| Barthel Index, median (IQR) | 50 (25–80) |
*Until study commencement.
†During the study period.