Serological diagnostic factors for liver metastasis in patients with colorectal cancer

Table 3 Cox regression analysis of patients with colorectal cancer

	χ2	P
Serum total protein (g/L)	0.093	0.761
Globulin (g/L)	< 0.000	0.994
Alanine aminotransferase (U/L)	1.943	0.163
Aspartate aminotransferase (U/L)	0.143	0.705
Total bilirubin (μmol/L)	0.122	0.726
Direct bilirubin (μmol/L)	0.063	0.801
γ-glutamyltransferase (U/L)	1.126	0.289
Alkaline phosphatase (U/L)	1.006	0.316
Lactate dehydrogenase (U/L)	11.254	0.001
Carcinoembryonic antigen (μg/L)	0.159	0.690
Lymph node metastasis	1.601	0.206