TABLE 2.
Comparison of clinicopathological characteristics between the tumors <50 mm and ≥50 mm
| Tumor size <50 mm, N = 36 | Tumor size ≥50 mm, N = 59 | P | |
|---|---|---|---|
| Age (y) | |||
| <65 | 15 (41.7) | 30 (50.8) | 0.214 |
| ≥65 | 21 (58.3) | 29 (49.2) | |
| Sex | |||
| Male | 23 (63.9) | 30 (50.8) | 0.351 |
| Female | 13 (36.1) | 29 (49.2) | |
| Body mass index (kg/m2) | |||
| <22 | 19 (52.8) | 38 (64.4) | 0.162 |
| ≥22 | 17 (47.2) | 21 (35.6) | |
| Tumor location | |||
| Colon | 27 (75.0) | 36 (61.0) | 0.162 |
| Rectum | 9 (25.0) | 23 (39.0) | |
| Approach type | |||
| Open | 13 (36.1) | 33 (55.9) | 0.061 |
| Laparoscopy | 23 (63.9) | 26 (44.1) | |
| Operative time (min) | |||
| <360 | 25 (69.4) | 32 (54.2) | 0.142 |
| ≥360 | 11 (30.6) | 27 (45.8) | |
| Blood loss (mL) | |||
| <100 | 20 (55.6) | 21 (35.6) | 0.057 |
| ≥100 | 16 (44.4) | 38 (64.4) | |
| Morbidity (Clavien–Dindo grade ≥III) | |||
| Absence | 35 (97.2) | 50 (84.7) | 0.051 |
| Presence | 1 (2.8) | 9 (15.3) | |
| Pathological T stage | |||
| pT4a | 26 (72.2) | 23 (39.0) | 0.002 |
| pT4b | 10 (27.8) | 36 (61.0) | |
| Pathological lymph node metastasis | |||
| Absence | 10 (27.8) | 24 (40.7) | 0.203 |
| Presence | 26 (72.2) | 35 (59.3) | |
| Distant metastasis | |||
| Absence | 28 (77.8) | 49 (83.1) | 0.525 |
| Presence | 8 (22.2) | 10 (16.9) | |
| Harvested lymph nodes | |||
| <12 | 1 (2.8) | 3 (5.1) | 0.511 |
| ≥12 | 35 (97.2) | 56 (94.9) | |
| Tumor differentiation | |||
| Well‐ or moderately‐differentiated tumor | 14 (38.9) | 32 (54.2) | 0.146 |
| Poorly‐differentiated tumor | 22 (61.1) | 27 (45.8) | |
| Radical resection margin | |||
| Negative | 30 (83.3) | 50 (84.7) | 0.855 |
| Positive | 6 (16.7) | 9 (15.3) | |
| Adjuvant chemotherapy | |||
| Absence | 14 (38.9) | 20 (33.9) | 0.623 |
| Presence | 22 (61.1) | 39 (66.1) | |