Retrospective analysis of preoperative tumor marker levels in rectal cancer patients: Implications for diagnosis

Table 4 Correlation between tumor marker levels and clinicopathological features

Feature	CEA	CA19-9	CA72-4	CA125	CA15-3	AFP
Tumor stage	P < 0.001	P = 0.032	P = 0.028	P = 0.145	P = 0.213	P = 0.678
Lymph node involvement	P = 0.002	P = 0.056	P = 0.009	P = 0.087	P = 0.312	P = 0.543
Distant metastasis	P < 0.001	P = 0.007	P = 0.019	P = 0.098	P = 0.176	P = 0.821
Tumor differentiation	P = 0.067	P = 0.018	P = 0.104	P = 0.231	P = 0.289	P = 0.765
Tumor size	P = 0.023	P = 0.041	P = 0.013	P = 0.156	P = 0.267	P = 0.612

CEA: Carcinoembryonic antigen; CA: Cancer antigen; AFP: Alpha-fetoprotein.