Table 2. Comparison of clinicopathological factors between the low and high groups for 3M/0M d-ROMs.
| Clinicopathological factors | 3M/0M d-ROMs | P value | |
|---|---|---|---|
| Low group† (n=47) | High group‡ (n=6) | ||
| Age | 65 [37–78] | 62 [57–78] | 0.90 |
| Gender | 0.69 | ||
| Male | 26 | 4 | |
| Female | 21 | 2 | |
| Current smoking | 0.31 | ||
| Present | 8 | 2 | |
| Absent | 39 | 4 | |
| Location | 0.66 | ||
| Colon | 33 | 5 | |
| Rectum | 14 | 1 | |
| Preoperative morbidity | 0.17 | ||
| Present | 32 | 6 | |
| Absent | 15 | 0 | |
| Preoperative CEA | 3.3 (0.6–48.5) | 6.5 (0.9–14.6) | 0.33 |
| Procedure | 1.00 | ||
| Open | 20 | 2 | |
| Laparoscopic | 27 | 4 | |
| Postoperative complication | 1.00 | ||
| Present | 12 | 1 | |
| Absent | 35 | 5 | |
| Differentiation | 0.47 | ||
| Differentiated§ | 43 | 5 | |
| Undifferentiated¶ | 4 | 1 | |
| T classification | 1.00 | ||
| T1–T3 | 40 | 5 | |
| T4 | 7 | 1 | |
| Lymphatic invasion | 0.39 | ||
| None-mild | 44 | 5 | |
| Moderate-severe | 3 | 1 | |
| Venous invasion | 0.65 | ||
| None-mild | 32 | 5 | |
| Moderate-severe | 15 | 1 | |
| Stage | 1.00 | ||
| II | 6 | 1 | |
| III | 41 | 5 | |
| N classification | 1.00 | ||
| N0, 1 | 39 | 5 | |
| N2 | 8 | 1 | |
| Completion of postoperative adjuvant chemotherapy | 0.47 | ||
| Present | 43 | 5 | |
| Absent | 4 | 1 | |
†, 3M/0M d-ROMs <1.458; ‡, 3M/0M d-ROMs ≥1.458; §, well- or moderately-differentiated adenocarcinoma; ¶, poorly-differentiated or mucinous adenocarcinoma.