Table 2 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) |