The 23 major categories of information collected for each critical incident
| Error or failure |
| Location of incident |
| Date of incident |
| Time of day |
| Hospital location |
| Patient condition before the incident |
| OR scheduling |
| Length of OR procedure |
| OR procedure |
| Anesthetic technique |
| Associated factors |
| Immediate consequence to patient |
| Secondary consequence to patient |
| Who discovered incident in progress |
| Who discovered incident cause |
| Discovery delay |
| Correction delay |
| Discovery of cause delay |
| Individual responsible for incident |
| Involvement of interviewee |
| Interviewee experience at time of interview |
| Related incidents |
| Important side comments |