Table 1.
Patient characteristics ( n = 239)
| Parameters | Value | |
|---|---|---|
| Sex (n (%)) | Male | 131 (55) |
| Female | 108 (45) | |
| Age (mean (range, SD)) | 66.7 (23 to 87, 10.3) | |
| Tumor location (n (%)) | Colon | 147 (62) |
| Rectum | 92 (38) | |
| Depth (n (%)) | pT2 | 63 (26) |
| pT3 | 176 (74) | |
| Lymph node involvement (n (%)) | pN0 | 146 (61) |
| pN1 | 75 (31) | |
| pN2 | 18 (8) | |
| Total number of retrieved lymph nodes (mean (range, SD)) | 15.6 (0 to 61, 9.77) | |
| Lymphatic permeation (n (%)) | Positive | 138 (58) |
| Negative | 101 (42) | |
| Venous infiltration (n (%)) | Positive | 127 (53) |
| Negative | 112 (47) | |
| Adjuvant chemotherapy (n (%)) | With | 119 (50) |
| Without | 96 (40) | |
| Unknown | 24 (10) | |
| PDCs grade (n (%)) | G1 | 140 (59) |
| G2 | 46 (19) | |
| G3 | 53 (22) | |
SD: standard deviation, PDC: poorly differentiated cluster.