Prescribing errors identified at audit, detected and reported by staff
| Hospital | Patients | Orders audited | Errors identified at audit | Error rate per 100 orders (95% CI) | Errors detected by staff | Detection rate per 1000 errors (95% CI) | Errors reported by staff | Reporting rate per 1000 errors (95% CI) |
| All prescribing errors | ||||||||
| Hospital A | 5123 | 40 861 | 6238 | 15.3 (14.9 to 15.6) | 938 | 150.4 (141.7 to 159.5) | 26 | 4.2 (2.8 to 6.1) |
| Hospital B | 2662 | 20 255 | 5064 | 25.0 (24.4 to 25.6) | 576 | 113.7 (105.3 to 122.8) | 10 | 2.0 (1.1 to 3.6) |
| Total | 7785 | 61 116 | 11 302 | 18.5 (18.2 to 18.8) | 1514 | 134.0 (127.8 to 141.4) | 36 | 3.2 (2.3 to 4.4) |
| Potentially serious errors | ||||||||
| Hospital A | 5123 | 40 861 | 1617 | 4.0 (3.8 to 4.2) | 395 | 244.3 (224.0 to 265.8) | 20 | 12.4 (8.0 to 19.0) |
| Hospital B | 2662 | 20 255 | 607 | 3.0 (2.8 to 3.2) | 185 | 304.8 (269.5 to 342.5) | 5 | 8.2 (3.5 to 19.1) |
| Total | 7785 | 61 116 | 2224 | 3.6 (3.5 to 3.8) | 580 | 260.8 (243.0 to 279.4) | 25 | 11.2 (7.6 to 16.5) |
| All prescribing errors involving high-risk drugs | ||||||||
| Hospital A | 2906 | 5591 | 1044 | 18.7 (17.7 to 19.7) | 139 | 133.1 (113.9 to 155.1) | 7 | 6.7 (3.2 to 13.8) |
| Hospital B | 1376 | 3065 | 1277 | 41.7 (39.9 to 43.4) | 82 | 64.2 (52.0 to 79.0) | 0 | 0 (0 to 3.0) |
| Total | 4282 | 8656 | 2321 | 26.8 (25.9 to 27.8) | 221 | 95.2 (83.9 to 107.8) | 7 | 3.0 (1.5 to 6.2) |
| Potentially serious errors involving high-risk drugs | ||||||||
| Hospital A | 2906 | 5591 | 480 | 8.6 (7.9 to 9.3) | 94 | 195.8 (162.8 to 233.7) | 6 | 12.5 (5.7 to 27.0) |
| Hospital B | 1376 | 3065 | 183 | 6.0 (5.2 to 6.9) | 37 | 202.2 (150.4 to 266.9) | 0 | 0 (0 to 20.6) |
| Total | 4282 | 8656 | 663 | 7.7 (7.1 to 8.2) | 131 | 197.6 (169.1 to 229.6) | 6 | 9.0 (4.2 to 19.6) |