Research Article
Influence of Individual Surgeon Volume on Oncological Outcome of Colorectal Cancer Surgery
Table 3
Postoperative characteristics.
| | Characteristics | Low-volume surgeon ()
Number of cases (%) | High-volume surgeon ()
Number of cases (%) | value |
| | Tumor stage | | | | | 1 | 34 (8) | 22 (7) | 0.03 | | 2 | 82 (18) | 74 (23) | | 3 | 290 (64) | 206 (65) | | 4 | 45 (10) | 15 (5) |
| | Nodal stage | | | | | 0 | 250 (55) | 197 (62) | 0.18 | | 1 | 140 (30.8) | 78 (24) | | 2 | 62 (14) | 46 (14) | | 3 | 1 (0.2) | 0 (0) |
| | Metastatic stage | | | | | 0 | 394 (87) | 303 (94) | <0.001 | | 1 | 59 (13) | 18 (6) |
| | Number of lymph nodes | | | | | Median (95% CI) | 13.5 (7.3–19.7) | 15.3 (8.5–22.1) | <0.001 |
| | Resection margins | | | | | Complete resection (R0) | 430 (95) | 314 (98) | 0.11 | | Microscopically irradical (R1) | 15 (3) | 4 (1) | | Macroscopically irradical (R2) | 8 (2) | 3 (1) |
| | Length of hospital-stay | | | | | Median in days (95% CI) | 13.1 (6.4–19.8) | 10.2 (4.8–15.6) | <0.001 |
| | Surgical adverse events | | | | | No | 324 (72) | 216 (67) | 0.21 | | Yes | 129 (28) | 105 (33) |
| | Nonsurgical adverse events | | | | | No | 383 (85) | 283 (88) | 0.15 | | Yes | 70 (15) | 38 (12) |
| | Severity of adverse event | | | | | No | 277 (61) | 197 (61) | 0.74 | | Self-limiting | 73 (16) | 59 (18) | | Temporary, invasive procedure | 87 (19) | 57 (18) | | Lasting negative effect | 2 (1) | 2 (1) | | Death | 14 (3) | 6 (2) |
| | Reintervention | | | | | None | 364 (80) | 266 (83) | 0.20 | | Radiological | 7 (2) | 9 (3) | | Surgical | 82 (18) | 46 (14) |
| | Adjuvant chemotherapy | | | | | No | 313 (69) | 243 (76) | 0.04 | | Yes | 140 (31) | 78 (24) |
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According to the AJCC TNM-staging system [17]; 95% confidence interval.
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