Table 3.

Comparison of tumor markers between the LM group and the NLM group.

Tumor marker	Calcium (mmol/L)	CEA (ng/mL)	CA125 (U/mL)	CA153 (U/mL)	CA199 (U/mL)	CYFRA21-1 (ng/mL)	NSE (μg/L)	TPSA (ng/L)
LM group	2.23 ± 0.23	104.05 ± 233.30	164.30 ± 360.52	32.14 ± 70.44	150.75 ± 731.14	15.96 ± 40.17	48.43 ± 77.88	1.75 ± 1.80
NLM group	2.24 ± 0.26	58.46 ± 307.30	79.20 ± 183.50	22.30 ± 33.24	55.21 ± 528.00	11.69 ± 35.79	26.54 ± 38.83	1.81 ± 4.18
P value	0.771	0.02	0.003	0.072	0.097	0.142	<0.001	0.867

Note: independent t-test was performed. P < 0.05 revealed statistical significance. Abbreviations: CEA: carcinoembryonic antigen; CA125: cancer antigen-125; CA153: cancer antigen-153; CA199: carbohydrate antigen-199; CYFRA21-1: cytokeratin fraction 21-1; NSE: neuron-specific enolase; TPSA: total prostate-specific antigen; LM: liver metastasis; NLM: nonliver metastasis.