Factors affecting compliance with the instruction to record the hypnotic to be used for induction in the patient's file
| Study period P1 versus P2 | Study period P2 versus P4 | |||
| OR (95% CI) | p Value | OR (95% CI) | p Value | |
| ASA status | ||||
| 1 | 1 | – | 1 | – |
| 2 | 1.1 (0.5 to 2.3) | 0.7 | 0.8 (0.4 to 1.7) | 0.73 |
| 3–4 | 3.2 (0.6 to 17.2) | 0.2 | 0.7 (0.2 to 2.4) | 0.50 |
| Patient age | ||||
| 1st third | 1 | – | 1 | – |
| 2nd third | 0.9 (0.4 to 1.9) | 0.4 | 0.9 (0.4 to 2.1) | 0.7 |
| 3rd third | 1.0 (0.4 to 2.9) | 0.9 | 0.8 (0.3 to 2.2) | 0.7 |
| Study period | ||||
| First (P1 or P2) | 1 | – | 1 | – |
| Second (P2 or P4) | 2.0 (1.0 to 3.4) | 0.05 | 0.3 (0.2 to 2.4) | <0.001 |
| Scheduled versus unscheduled surgery | ||||
| No | 1 | 1 | ||
| Yes | 0.3 (0.1 to 0.6) | <0.01 | 0.5 (0.2 to 0.9) | 0.02 |
| Duration of surgery | ||||
| 1st third | 1 | – | 1 | – |
| 2nd third | 0.6 (0.4 to 1.9) | 0.8 | 1.1 (0.5 to 2.3) | 0.8 |
| 3rd third | 0.8 (0.3 to 2.5) | 0.7 | 0.7 (0.3 to 1.5) | 0.4 |
| First anaesthesia of the day | ||||
| No | 1 | – | 1 | – |
| Yes | 2.6 (1.0 to 6.9) | 0.05 | 2.9 (1.3 to 6.5) | 0.01 |
| Day of the week | ||||
| Any day except Monday | 1 | – | 1 | – |
| Monday | 1.2 (0.4 to 3.7) | 0.8 | 0.4 (0.2 to 0.9) | 0.03 |
| Same anaesthetist (before and during surgery) | ||||
| No | 1 | – | 1 | – |
| Yes | 1.1 (0.5 to 2.2) | 0.8 | 1.4 (0.8 to 2.7) | 0.26 |
P1, before introducing the rule; P2, immediately after introducing the rule; P4, at 12 months.