Demographic variables by profession
| Variable | Surgeons | Anaesthesia providers | OR nursing |
| Years of age | 48.2 | 49.1 | 45.8 |
| Years in profession | 17.7 | 17.7 | 15.8 |
| Years in VA | 8.4 | 9.5 | 8.6 |
| Per cent of women | 15 | 37 | 70 |
OR, operating room; VA, Department of Veterans Affairs.