Table 3.
Surgeon characteristics* | Total surgeons, n | Total patients, n | Surgeon volume | ||||
---|---|---|---|---|---|---|---|
Very low, % | Low, % | Medium, % | High, % | Very high, % | |||
Total cohort | 1,884 | 6,000 | 1,290 | 1,577 | 1,682 | 843 | 608 |
Gender† | |||||||
Male | 1,728 | 5,592 | 92.9 | 95.7 | 96.9 | 96.7 | 85.0 |
Female | 113 | 327 | 7.1 | 4.3 | 3.1 | 3.3 | 15.0 |
Age† y | |||||||
< 40 | 795 | 1,155 | 21.3 | 21.4 | 18.5 | 13.2 | 22.7 |
40–49 | 1,568 | 2,296 | 29.6 | 37.3 | 39.1 | 44.5 | 52.8 |
50–59 | 1,185 | 1,639 | 26.0 | 24.1 | 30.2 | 36.7 | 21.2 |
≥ 60 | 666 | 829 | 23.1 | 17.3 | 12.2 | 5.7 | 3.3 |
Practice location† | |||||||
Urban | 1,586 | 4,768 | 82.6 | 79.1 | 74.2 | 79.5 | 89.9 |
Large rural | 192 | 437 | 5.7 | 7.9 | 9.4 | 7.2 | 3.3 |
Small rural | 214 | 386 | 5.4 | 6.4 | 7.6 | 8.0 | 3.6 |
Isolated rural | 242 | 397 | 6.4 | 6.6 | 8.8 | 5.3 | 3.1 |
Board certification† | |||||||
General surgery | 1,440 | 3,960 | 81.0 | 83.7 | 73.9 | 39.5 | 13.8 |
Colorectal surgery | 185 | 1,489 | 4.6 | 7.2 | 18.8 | 57.4 | 86.2 |
Board certified, but not in GS, CR | 18 | 27 | 1.4 | 0.3 | 0.4 | 0.0 | 0.0 |
No certification | 198 | 443 | 13.1 | 8.9 | 6.9 | 3.1 | 0.0 |
Years of practice† | |||||||
0–14 | 1,108 | 1,616 | 27.9 | 29.7 | 24.6 | 23.5 | 32.7 |
15–24 | 1,435 | 2,060 | 27.2 | 32.4 | 35.5 | 39.6 | 45.4 |
25–34 | 1,119 | 1,573 | 24.9 | 23.3 | 30.1 | 32.9 | 20.2 |
≥ 35 | 552 | 670 | 20.0 | 14.7 | 8.9 | 4.0 | 1.6 |
Hospital volume† | |||||||
Very low | 768 | 1,432 | 45.6 | 28.2 | 19.3 | 7.3 | 4.7 |
Low | 589 | 1,607 | 24.4 | 32.7 | 31.4 | 26.2 | 7.4 |
Medium | 411 | 1,391 | 15.0 | 20.7 | 29.3 | 27.3 | 26.7 |
High | 238 | 773 | 9.4 | 10.6 | 10.6 | 24.0 | 18.5 |
Very high | 162 | 732 | 5.6 | 7.8 | 9.4 | 15.2 | 42.7 |
Solo practice† | |||||||
No | 1,074 | 3,594 | 56.8 | 59.7 | 60.1 | 60.1 | 73.9 |
Yes | 767 | 2,325 | 43.2 | 40.3 | 39.9 | 39.9 | 26.2 |
Missing cases for the surgeon volume analysis: gender, age, board certification, years of practice, solo practice = 81 patients, area of practice = 12 patients, hospital volume = 65 patients.
Overall chi-square significance at ≤0.001.
CR, colorectal surgery; GS, general surgery.