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Detection of CK20 positive tumor cells (CTC) in the blood of patients with rectal cancer
| Variable | Category | Rate of CK20 positive CTC | χ2-test (p-values) |
|---|---|---|---|
| Neoadjuvant RCTX | Yes | 46.8 % (37/79) | p = 0.002 |
| No | 24.7 % (43/174) | ||
| Tumor localisation | Upper 1/3 | 31 % (27/87) | p = 0.42 |
| Middle 1/3 | 27.6 % (29/105) | ||
| Lower 1/3 | 37 % (23/61) | ||
| pN- status | pN+ | 30 % (31/103) | p = 0.6 |
| pN- | 32.6 % (49/150) | ||
| UICC stage | I | 30.6 % (23/75) | p = 0.99 |
| II | 32.3 % (23/71) | ||
| III | 31.3 % (25/80) | ||
| IV | 33.3 % (9/27) |
