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Demographic and clinicopathologic data of included CRC patients
| Characteristics | Primary tumor tissue samples | Regional lymph node samples | Distant metastasis samples | p-value |
|---|---|---|---|---|
| Sex, n (%) | ||||
| Male | 19 (73) | 13 (68) | 8 (57) | 0.59 |
| Female | 7 (27) | 6 (32) | 6 (43) | |
| Age, years | ||||
| Mean ± s.d. | 69.8 ± 9.2 | 69.6 ± 9.5 | 70.6 ± 7.7 | >0.76 |
| Tumor location, n (%) | ||||
| Colon | 17 (65) | 13 (68) | 10 (71) | 0.92 |
| Rectum | 9 (35) | 6 (32) | 4 (29) | |
| TNM stage, n (%) | ||||
| 3rd stage | 12 (46) | 11 (58) | - | <0.05 |
| 4th stage | 14 (54) | 8 (42) | 14 (100) | |
