Individual compliance with the instruction to record the hypnotic
| Compliance (%) | ||
| P2 | P4 | |
| Anaesthetist 1 (academic, experienced senior chief anaesthetist) | 91 | 79 |
| Anaesthetist 2 (competent junior) | 79 | 56 |
| Anaesthetist 3 (young senior) | 57 | 56 |
| Anaesthetist 4 (highly experienced senior) | 96 | 98 |
| p=0.005 | p<0.001 | |
P2, immediately after introducing the rule; P4: at 12 months.