Incidence of harmful DERS events by clinical area
| Clinical area | DERS infusions | HMX events | Rate of HMX events in all DERS infusions (%) |
| Critical care | 169 478 | 247 | 0.15 |
| Medical | 82 769 | 272 | 0.33 |
| Paediatric | 11 847 | 53 | 0.45 |
| Surgical | 67 916 | 89 | 0.13 |
| Theatres | 979 | 1 | 0.10 |
| Women’s care | 5274 | 6 | 0.11 |
| Mean rate | 0.20 (IQR=0.12–0.28) | ||
DERS, drug error reduction software; HMX, hard maximum.