| Comorbid diseases | N (%) | Psychotropic drugs | N (%) |
| Depression | 48 (76.2) | Specific antidepressants | 8 (12.7) |
| OSAS | 17 (27.0) | Dopamine agonist | 4 (6.3) |
| Diabetes mellitus | 3 (4.8) | Typical benzodiazepine | 6 (9.5) |
| Alcohol dependence | 3 (4.8) | Atypical benzodiazepine | 16(25.4) |
| Arterial hypertension | 20 (31.7) | Neuroleptics | 6 (9.5) |
| Coronary heart disease | 4 (6.3) | Thyroid medication | 11(17.5) |
| Osteoarthritis | 3 (4.8) | Antihypertensives | 12(19.0) |
| Tricycle antidepressants | 19 (30.2) | Analgesics | 4 (6.3) |
| Serotonin reuptake inhibitors | 8 (12.7) | Beta-blockers | 2 (3.2) |