Clinical medication administration errors at baseline
| Clinical error type | Baseline (preintervention) clinical error rate | ||||
| Control wards (n=2463 administrations) | Intervention wards (n=1713 administrations) | Combined all wards (n=4176 administrations) | |||
| Errors/applicable administrations (n) | Error rate per 100 administrations (95% CI) | Errors/applicable administrations (n) | Error rate per 100 administrations (95% CI) | Error rate per 100 administrations (95% CI) | |
| Wrong intravenous rate | 154/348 | 44.3 (39.0 to 49.5) | 92/184 | 50.0 (42.8 to 57.2) | 46.2 (42.0 to 50.5) |
| Wrong timing | 441/2463 | 17.9 (16.4 to 19.4) | 376/1713 | 22.0 (20.0 to 23.9) | 19.6 (18.4 to 20.8) |
| Wrong solvent/diluent volume (injectables) | 75/593 | 12.7 (10.0 to 15.3) | 42/386 | 10.9 (7.8 to 14.0) | 12.0 (9.9 to 14.0) |
| Wrong dose | 62/2463 | 2.5 (1.9 to 3.1) | 64/1713 | 3.7 (2.8 to 4.6) | 3.0 (2.5 to 3.5) |
| Wrong solvent (injectables) | 14/593 | 2.36 (1.1 to 3.6) | 4/386 | 1.0 (0.03 to 2.1) | 1.8 (1.0 to 2.7) |
| Wrong formulation | 12/2463 | 0.5 (0.2 to 0.8) | 14/1713 | 0.8 (0.4 to 1.2) | 0.6 (0.4 to 0.9) |
| Wrong strength | 10/2463 | 0.4 (0.2 to 0.7) | 16/1713 | 0.9 (0.5 to 1.4) | 0.6 (0.4 to 0.9) |
| Intravenous with incompatible drug | 2/348 | 0.6 (0.0 to 1.4) | 1/184 | 0.5 (0.0 to 1.6) | 0.6 (0.0 to 1.2) |
| Wrong drug | 14/2463 | 0.6 (0.3 to 0.9) | 4/1713 | 0.2 (0 to 0.5) | 0.4 (0.2 to 0.6) |
| Extra dose | 5/2463 | 0.2 (0.03 to 0.4) | 6/1713 | 0.4 (0.1 to 0.6) | 0.3 (0.1 to 0.4) |
| Wrong route | 2/2463 | 0.1 (0.0 to 0.2) | 7/1713 | 0.4 (0.1 to 0.7) | 0.2 (0.1 to 0.4) |
| Unordered drug | 1/2463 | 0.04 (0.0 to 0.1) | 6/1713 | 0.4 (0.1 to 0.6) | 0.2 (0.04 to 0.3) |
| Medication administrations with ≥1 clinical error | 695/2463 | 28.2 (26.4 to 30.0) | 565/1713 | 33.0 (30.8 to 35.2) | 30.2 (28.8 to 31.6) |
| Potential severity score ≥3 | 65/2463 | 2.6 (2.0 to 3.3) | 72/1713 | 4.2 (3.3 to 5.2) | 3.3 (2.7 to 3.8) |