Error detection rates by type of error
| Type of error (n) | Reported (n) | Unreported (n) | Percentage reported (Clopper-Pearson 95% CI) |
| All errors (120) | 65 | 55 | 54 (45 to 63) |
| Name error (15) | 10 | 5 | 67 (38 to 88) |
| Intervention error (16) | 7 | 9 | 44 (20 to 70) |
| Site/side error (15) | 9 | 6 | 60 (32 to 84) |
| Allergy error(14) | 7 | 7 | 50 (23 to 77) |
| Gender (30) | 23 | 7 | 77 (58 to 90) |
| Age (30) | 9 | 21 | 30 (15 to 49)* |
*Gender versus age, p<0.001.