Table 3 Detection of CK20 positive tumor cells (CTC) in the blood of patients with rectal cancer after neoadjuvant RCTX
Variable | Category | Rate of CK20 positive CTC | χ2-test (p-values) |
|---|---|---|---|
RCTX | Responder | 27.2 % (6/22) | p = 0.030 |
Non-responder | 54.4 % (31/57) | ||
Tumor localisation | Upper 1/3 | 54.5 % (6/11) | p = 0.848 |
Middle 1/3 | 46.3 % (19/41) | ||
Lower 1/3 | 44.4 % (12/27) | ||
pN- Status | pN+ | 55.8 % (19/34) | p = 0.161 |
pN- | 40 % (18/45) | ||
UICC Stage | I | 30,4 % (7/23) | p = 0.265 |
II | 52.3 % (11/21) | ||
III | 51.7 % (15/29) | ||
IV | 66.6 % (4/6) |