Table 2.
Patient demographics, tumor characteristics, and survival between two groups according to horizontal diameter
| ≤4.5 cm (n=208) | >4.5 cm (n=231) | p | |
|---|---|---|---|
| Gender | |||
| Female | 92 | 96 | 0.32 |
| Male | 116 | 135 | |
| Age groups | |||
| Median (range) | 69 (21–92) | 68 (22–93) | 0.133 |
| Mean±S.E.M | 67.6±0.8 | 65.7±1 | |
| Tumor location | |||
| Right colon | 40 | 77 | 0.004 |
| Left colon | 98 | 89 | |
| Rectum | 70 | 65 | |
| Tumor Differentiation | |||
| Well | 43 | 31 | 0.003 |
| Moderate | 157 | 176 | |
| Poor | 7 | 21 | |
| Undifferentiated | 1 | 3 | |
| pT Stage | |||
| 1 | 13 | 3 | <0.001 |
| 2 | 46 | 27 | |
| 3 | 137 | 167 | |
| 4 | 12 | 34 | |
| pN Stage | |||
| 0 | 139 | 118 | <0.001 |
| 1 | 53 | 80 | |
| 2 | 16 | 33 | |
| TNM Stage | |||
| I | 53 | 25 | 0.001 |
| II | 74 | 87 | |
| III | 54 | 82 | |
| IV | 27 | 37 | |
| Local recurrence | |||
| Yes | 16 | 28 | 0.063 |
| No | 166 | 167 | |
| Distant metastasis | |||
| Yes | 44 | 66 | 0.02 |
| No | 122 | 110 | |
| Unknown | 42 | 55 | |
| Follow-up | |||
| Alive | 117 | 93 | 0.001 |
| Dead | 64 | 101 | |
| Missed | 27 | 27 | |
| Overall survival (month) | |||
| Median (range) | 31 (0.1–187.3) | 28.5 (0.1–237.1) | 0.014 |
| Mean±S.E.M | 47.9±3.3 | 37.2±2.8 | |
| Disease-free survival (month) | |||
| Median (range) | 25.8 (0.1–187.3) | 19.5 (0.1–237.1) | 0.06 |
| Mean±S.E.M | 42.3±3.3 | 33.9±3 | |