Table 1.
Clinical characteristics of this study
| Variable | Characteristics | Patients N = 133 (%) |
|---|---|---|
| Sex | Male | 88 (66.2) |
| Female | 45 (33.8) | |
| Tumor location | 0 cm-5 cm | 60 (45.1) |
| > 5 cm | 73 (54.9) | |
| Type of operation | LAR | 87 (65.4) |
| APR | 35 (26.3) | |
| Hartmann | 11 (8.3) | |
| Surgical approach | Open | 28 (21.1) |
| Laparoscopy | 105 (78.9) | |
| Pathological stage (ypTNM) | yp0 | 26 (19.5) |
| ypI | 22 (16.6) | |
| ypII | 46 (34.6) | |
| ypIII | 39 (29.3) | |
| Depth of invasion (ypT) | ypT0 | 27 (20.3) |
| ypT1-ypT2 | 26 (19.5) | |
| ypT3-ypT4 | 80 (60.2) | |
| No. of metastatic lymph nodes (ypN) | ypN0 | 94 (70.7) |
| ypN1 | 32 (24.0) | |
| ypN2 | 7 (5.3) | |
| No. of lymph nodes harvested | < 12 | 55 (41.4) |
| ≥ 12 | 78 (58.6) | |
| Differentiation | Poor/Anaplastic | 21 (15.8) |
| High/Moderate | 45 (33.8) | |
| Unknown | 40 (30.1) | |
| No residual tumor | 27 (20.3) |