CEACAM5 and neoplasm: According to the univariate analysis, patients were more likely to be diagnosed with IAC than with AIS or MIA if they were >57 years of age or had a pure solid nodule, a tumour size >11 mm, a serum CEA level >2.12 ng/mL, or a miR-183 level >1.233 (2−ΔΔCt) (p: <0.001, 0.001, <0.001, 0.001, and 0.020, resp).