CEACAM5 and neoplasm: In contrast, no significant correlations were observed for age (pooled P = 0.3141), gender (pooled P = 0.5696), tumor location (pooled P = 0.8627), as well as levels of carcinoembryonic antigen (CEA) (pooled P = 0.2047), and carbohydrate antigen (CA) 19–9 (pooled P = 0.7954).