Table 1.
Baseline clinical characteristics of the 202 patients
| Parameter | Group 1 | Group 2 | P value |
|---|---|---|---|
| Age (years) | 57.4 ± 3.1 | 59.3 ± 2.3 | |
| Sex | |||
| Males | 50 | 56 | |
| Females | 48 | 48 | 0.69 |
| Localization of tumor | |||
| Rectum | 58 | 58 | |
| Colon | 40 | 46 | 0.62 |
| TNM stages | |||
| II | 32 | 36 | |
| III | 48 | 52 | |
| IV | 18 | 16 | 0.95 |
| Histological type | |||
| Tubular | 58 | 52 | |
| Papillary | 32 | 43 | |
| Mucinous | 8 | 9 | 0.40 |
| Differentiation grade | |||
| High | 28 | 33 | |
| Intermediate | 48 | 47 | |
| Low | 22 | 24 | 0.85 |
| Operation methods | |||
| Right hemicolectomy | 24 | 28 | |
| Left hemicolectomy | 10 | 14 | |
| Dixon operation | 38 | 41 | |
| Miles operation | 18 | 12 | |
| Combined liver metastasis resection | 4 | 6 | |
| Other | 4 | 3 | 0.75 |
The patients’ characteristics in group 1 and 2 are listed. No significant difference was found in age, sex, pathological type, clinical stages, and operation method between the two groups (P > 0.05). The background data for all patients was relatively similar