Table 1.
Baseline characteristics
| Characteristic | Data |
|---|---|
| No. of patients | 124 |
| Age (yr) | 47 (37–56) |
| Sex | |
| Male | 81 (65.3) |
| Female | 43 (34.7) |
| Site | |
| Rectum | 117 (94.4) |
| Rectosigmoid | 7 (5.6) |
| Performance status, ECOG scale | |
| 0 | 17 (13.7) |
| 1 | 89 (71.7) |
| 2 | 12 (9.7) |
| 3 | 6 (4.8) |
| Comorbidities, ASA PS classification | |
| I | 77 (62.1) |
| II | 44 (35.5) |
| III | 3 (2.4) |
| Body mass index (kg/m2) | 21.82 (19.29–24.09) |
| Preoperative hemoglobin (g/dL) | 11.4 (10.1–12.7) |
| Preoperative albumin (g/dl) | 3.9 (3.4–4.1) |
| Distance from anal verge (cm) | 3 (1–6) |
| Preoperative diversion | 36 (29.0%) |
| Histologic differentiation | |
| Well-moderate | 87 (70.2) |
| Poorly-differentiated | 37 (29.8) |
| Signet ring cell cancer | 17 (13.7) |
| CEA (ng/mL) | 6.05 (3.07–23) |
| Lateral pelvic nodes | 41 (33.1) |
| Preoperative T stage | |
| T3 | 18 (14.5) |
| T4 | 106 (85.5) |
| Clinical node positive | 118 (95.2) |
| Extramural vascular invasion (n = 63) | 19 (30.2) |
| M1 stage | 12 (9.7) |
| Site of M1 (n = 12) | |
| Liver | 6 (50.0) |
| Peritoneum | 3 (25.0) |
| Extra-pelvic nodes | 2 (16.7) |
| Lung | 1 (8.3) |
Values are presented as number only, median (interquartile range), or number (%).
ECOG, Eastern Cooperative Oncology Group; ASA PS, American Society of Anesthesiologists physical status.