Comparison between attributed and unattributed ADE patients
| Attributed ADEs (n=33) | Unattributed ADEs (n=62) | p Value | |
| Age in years, mean (SD) | 62.6 (23.4) | 70.0 (20.7) | 0.11 |
| Female sex, n (%) | 13 (39.4) | 31 (50.0) | 0.32 |
| ED outcome, n (%) | 0.74 | ||
| Discharge | 8 (24.2) | 17 (27.4) | |
| Hospitalisation | 25 (75.8) | 45 (72.6) | |
| Death | 0 | 0 | |
| Number of daily medications, mean (SD) | 6.9 (4.2) | 5.5 (3.1) | 0.12 |
| ADE mechanism, n (%) | 0.003 | ||
| Direct drug effect | 16 (48.5) | 12 (19.4) | |
| Drug involvement in a multifactorial pathological condition | 17 (51.5) | 50 (80.6) | |
| ADE severity, n (%) | 0.98 | ||
| Spontaneous regression | 2 (6.1) | 4 (6.5) | |
| Regression after symptomatic treatment | 7 (21.2) | 13 (21.0) | |
| Hospitalisation with no life-threat | 21 (63.6) | 41 (66.1) | |
| Life-threatening risk | 3 (9.1) | 4 (6.5) | |
| Death | 0 | 0 | |
| Number of drugs implicated in ADE occurrence, mean (SD) | 1.3 (0.6) | 1.3 (0.5) | 0.81 |
ADE, adverse drug event; ED, emergency department.