CEACAM5 and neoplasm: In the univariate binary logistic regression analyses for pCR, statistical significance was noted for age ≤ 70 years (OR 2.09, 95% CIs in Table 4), cT1-2 (OR 2.47, with T4 as reference), tumour length ≤3.5 cm (OR 1.84), time from RT to surgery (OR 1.57), normal leucocytes (OR 2.37), normal thrombocytes (OR 4.57), normal CEA (OR 2.03), or CRT (OR 1.89, with scRT as reference), and scRT/CRT + CTX (OR 3.32 with scRT as reference).