Table 1 The relationship between CTC-positive rate and clinicopathological characteristics
| Variations | Number (%) | No of patients | P | |
|---|---|---|---|---|
| CTC-positive CTC-negative | ||||
| Gender | ||||
| Male | 16 | 13 | 3 | 0.280 |
| Female | 9 | 9 | 0 | |
| Age | ||||
| <60 | 8 | 7 | 1 | 1.000 |
| ≥60 | 17 | 15 | 2 | |
| Tumor stage | ||||
| I-II | 13 | 12 | 1 | 0.593 |
| III-IV | 12 | 10 | 2 | |
| Tumor size | ||||
| T1-T2 | 9 | 8 | 1 | 1.000 |
| T3-T4 | 16 | 14 | 2 | |
| Lymph nodes | ||||
| N0 | 8 | 8 | 0 | 0.527 |
| N1 | 17 | 14 | 3 | |
| Metastasis | ||||
| M0 | 19 | 18 | 1 | 0.133 |
| M1 | 6 | 4 | 2 | |
| CA19-9 | ||||
| <200 U/ml | 12 | 11 | 1 | 1.000 |
| ≥200 U/ml | 13 | 11 | 2 | |