Baseline characteristics
| Characteristic | Control | Intervention | p Value |
|---|---|---|---|
| Patient level | |||
| Patients, n (%) | 232 (51.8) | 216 (48.2) | – |
| Age, mean (SD) | 69.8 (12.7) | 70.9 (13.8) | 0.36 |
| Gender, men (%) | 107 (46.1) | 109 (50.5) | 0.36 |
| Patient category, medical (%) | 161 (69.4) | 161 (74.5) | 0.23 |
| Radiological imaging, n (%) | 133 (57.3) | 131 (60.6) | 0.48 |
| Triage | – | – | 0.60 |
| Level 2, n (%) | 30 (12.9) | 33 (15.3) | – |
| Level 3, n (%) | 148 (63.8) | 122 (56.5) | – |
| Level 4, n (%) | 54 (23.3) | 61 (28.2) | – |
| Hospitalised, n (%) | 188 (81.0) | 183 (84.7) | 0.30 |
| Discharged to GP, n (%) | 44 (19.0) | 33 (15.3) | 0.30 |
| Cluster level | |||
| Number of days, n (%) | 63 (50.0) | 63 (50.0) | – |
| Patients admitted to AAU per 24 h, mean | 28.0 | 28.3 | – |
| Patients admitted to AAU 09:00–16:15, mean | 16.1 | 16.4 | – |
| Physicians involved, n* | 75 | 81 |
*Overall, 102 physicians were involved. Many physicians examined patients in both groups.
AAU, acute admission unit; GP, general practitioner.