Table 3. Comparisons of recurrence-free survival rates according to clinicopathological factors and 3M/0M d-ROMs.
| Clinicopathological factors | n | 5-years recurrence-free survival (%) | P value |
|---|---|---|---|
| Age (years) | 0.67 | ||
| <75 | 47 | 78.2 | |
| ≥75 | 6 | 83.3 | |
| Gender | 0.85 | ||
| Male | 30 | 79.4 | |
| Female | 23 | 78.3 | |
| Location | 0.63 | ||
| Colon | 38 | 78.5 | |
| Rectum | 15 | 80.0 | |
| Preoperative morbidity | 0.65 | ||
| Present | 38 | 75.7 | |
| Absent | 15 | 86.7 | |
| Procedure | 0.90 | ||
| Open | 22 | 77.0 | |
| Laparoscopic | 31 | 80.2 | |
| Postoperative complication | 0.87 | ||
| Present | 13 | 84.6 | |
| Absent | 40 | 76.9 | |
| Differentiation | 0.35 | ||
| Differentiated† | 48 | 80.8 | |
| Undifferentiated‡ | 5 | 60.0 | |
| T classification | 0.92 | ||
| T1–T3 | 45 | 79.5 | |
| T4 | 8 | 75.0 | |
| Lymphatic invasion | 0.16 | ||
| None-mild | 49 | 81.2 | |
| Moderate-severe | 4 | 50.0 | |
| Venous invasion | 0.28 | ||
| None-mild | 37 | 75.1 | |
| Moderate-severe | 16 | 87.5 | |
| Stage | 0.15 | ||
| II | 7 | 100.0 | |
| III | 46 | 75.6 | |
| N classification | 0.004 | ||
| N0, 1 | 44 | 86.0 | |
| N2 | 9 | 44.4 | |
| Completion of postoperative adjuvant chemotherapy | 0.79 | ||
| Present | 48 | 78.7 | |
| Absent | 5 | 80.0 | |
| 3M/0M d-ROMs | 0.002 | ||
| Low group§ | 47 | 84.8 | |
| High group¶ | 6 | 25.0 | |
†, well-differentiated adenocarcinoma; ‡, poorly-differentiated or mucinous adenocarcinoma; §, 3M/0M d-ROMs <1.458; ¶, 3M/0M d-ROMs ≥1.458.