CEACAM5 and neoplasm: The cut-offs and AUCs of effective tumor markers were as follows: 3.7 ng/ml [AUC, 0.890 (0.871–0.907)] for PE CEA, 3.6 ng/ml [AUC, 0.834 (0.808–0.859)] for serum CEA, 1.5 [AUC, 0.811 (0.782–0.840)] for PE/S CEA, 9.2 ng/ml [AUC, 0.758 (0.727–0.789)] for PE CA19-9, 59.2 ng/ml [AUC, 0.764 (0.735–0.793)] for PE CYFRA21-1, and 3.0 ng/ml [AUC, 0.852 (0.830–0.874)] for serum CYFRA21-1.