CEACAM5 and colorectal carcinoma: When CRC was compared with benign diseases, CEA [7.5 (95% Cl 1.8–40.9) vs. 2.7 (95% Cl 1.5–3.7)], CA19-9 [16.6 (95% Cl 10.3–105.0) vs. 12.3 (95% Cl 7.3–17.4)], CA 125 [12.8 (95% Cl 8.9–31.4) vs. 8.1 (95% Cl 6.5–12.3)], CA 72-4 [4.5 (95% Cl 1.6–19.2) vs. 1.9 (95% Cl 1.5–4.3)], CYFRA 21-1 [2.7 (95% Cl 2.0–5.7) vs. 1.9 (95% Cl 1.2–2.5)], and CA 242 [10.3 (95% Cl 4.6–60.4) vs. 5.4 (95% Cl 2.6–7.3)] showed significant differences (p < 0.05).