Table 1.
Surgeon and Hospital Rectal Cancer Surgery Volumes
| Volume groups* | Total | Very low | Low | Medium | High | Very high |
|---|---|---|---|---|---|---|
| Surgeon volume | 1–2 operations | 3–5 operations | 6–12 operations | 13–19 operations | ≥20 operations | |
| Surgeons, n (%) | 1,884 | 1,023 (54.3) | 510 (27.1) | 258 (13.7) | 65 (3.5) | 28 (1.5) |
| Median cases, n | 1 | 4 | 7 | 14 | 22 | |
| Patients, n (%) | 6,000 | 1,290 (21.5) | 1,577 (26.3) | 1,682 (28.0) | 843 (14.1) | 608 (10.1) |
| Hospital volume | 1–17 operations | 18–35 operations | 36–51 operations | 52–79 operations | ≥80 operations | |
| Hospitals, n (%) | 516 | 353 (68.4) | 90 (17.4) | 44 (8.5) | 19 (3.7) | 10 (1.9) |
| Median cases, n | 4 | 25 | 42 | 58 | 80 | |
| Patients, n (%) | 6,182 | 1,497 (24.2) | 1,677 (27.1) | 1,437 (23.2) | 815 (13.2) | 756 (12.2) |
*
Total volume over 8-year study period.
Percentages may not add to 100 because of rounding errors.