The number and percentage of the type of complaint reported in the study.
| Type of complaint investigation* | n (%) |
| General Medical Council | 873 (14.2%) |
| Serious untoward incident | 732 (11.9%) |
| Formal | 3096 (50.4%) |
| Informal | 1284 (20.9%) |
| Missing | 159 (2.6%) |
| Total | 6144 (100%) |
*Doctors were asked to fill in the questionnaire based on the complaint/investigation that had most impact on them.