Demographic characteristics of surgeons
| Factor | Total (N=30) |
| Age (year) | 37±9 |
| Height (cm) | 181 (178, 183) |
| Weight (kg) | 85 (82, 98) |
| BMI (kg/m2) | 26 (25, 28) |
| Ethnicity (%) | |
| White/Caucasian | 26 (87) |
| Asian | 2 (7) |
| Black/African American | 1 (3) |
| Hispanic/Latino | 1 (3) |
| Training level (%) | |
| Resident second and third year | 9 (30) |
| Resident fourth and fifth year | 5 (17) |
| Fellow | 5 (17) |
| Attending | 11 (36) |
Summary statistics are presented as N (%) for categorical variables, mean±SD or median (Q1, Q3) for continuous variables.
BMI, body mass index.