Table 1. Baseline Characteristics of Study Participants.
| Characteristic | No. (%) | |
|---|---|---|
| Intervention group (n = 866) | Control group (n = 836) | |
| Age ≥85, y | 314 (36.3) | 397 (47.5) |
| >10 medications at hospital admission | 301 (34.8) | 295 (35.3) |
| Age ≥85 y and >10 medications at hospital admission | 251 (29.0) | 144 (17.2) |
| Age, median (IQR), y | 86.0 (79.0-89.0) | 86.0 (79.8-90.0) |
| Men | 366 (42.3) | 354 (42.3) |
| Women | 500 (57.7) | 482 (57.7) |
| No. of medications at hospital admission, median (IQR) | 12 (9-16) | 11 (6-13) |
| Primary diagnosisa | ||
| Certain infectious and parasitic diseases | 26 (3.0) | 27 (3.2) |
| Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism | 7 (0.8) | 10 (1.2) |
| Diseases of the circulatory system | 138 (15.9) | 148 (17.7) |
| Diseases of the digestive system | 88 (10.2) | 93 (11.1) |
| Diseases of the ear and mastoid process | 8 (0.9) | 5 (0.6) |
| Diseases of the eye and adnexa | 1 (0.1) | 0 |
| Diseases of the genitourinary system | 74 (8.5) | 49 (5.9) |
| Diseases of the musculoskeletal system and connective tissue | 73 (8.4) | 59 (7.1) |
| Diseases of the nervous system | 31 (3.6) | 25 (3.0) |
| Diseases of the respiratory system | 105 (12.1) | 102 (12.2) |
| Diseases of the skin and subcutaneous tissue | 9 (1.0) | 16 (1.9) |
| Endocrine, nutritional, and metabolic diseases | 19 (2.2) | 24 (2.9) |
| Factors influencing health status and contact with health services | 0 | 2 (0.2) |
| Injury, poisoning, and certain other consequences of external causes | 142 (16.4) | 132 (15.8) |
| Mental and behavioral disorders | 48 (5.5) | 40 (4.8) |
| Neoplasms | 45 (5.2) | 43 (5.1) |
| Symptoms, signs, and abnormal clinical and laboratory findings not elsewhere classified | 52 (6.0) | 61 (7.3) |
| Disposition status | ||
| Home | 545 (62.9) | 478 (57.2) |
| Nonmedical institution or nursing home | 221 (25.5) | 229 (27.4) |
| Non-medical institution | 3 (0.3) | 6 (0.7) |
| Rehabilitation institution | 46 (5.3) | 52 (6.2) |
| Hospital or clinic | 19 (2.2) | 29 (3.5) |
| Psychiatric institution or clinic | 13 (1.5) | 19 (2.3) |
| Death | 19 (2.2) | 23 (2.8) |
Abbreviation: IQR, interquartile range.
a
Diagnosis categories are from the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10).