Factors associated with adherence to mandatory double-checking (n=3563 administrations)
| Related factors | OR of double-checking (95% CI) | P value |
| Ward | 0.03 | |
| A | Ref. | |
| B | 1.37 (0.8 to 2.35) | |
| C | 1.23 (0.76 to 1.97) | |
| D | 1.52 (0.9 to 2.57) | |
| E | 0.78 (0.48 to 1.24) | |
| F | 0.71 (0.37 to 1.35) | |
| G | 2.1 (1.08 to 4.11) | |
| H | 1.18 (0.65 to 2.12) | |
| I | 1.58 (0.89 to 2.80) | |
| Registered versus enrolled nurse | 1.58 (1.07 to 2.32) | 0.02 |
| eMM versus paper system | 0.72 (0.53 to 0.98) | 0.03 |
| Weekend versus weekday | 1.50 (1.02 to 2.21) | 0.04 |
eMM, electronic medication management.