Biomarker Identification and Pathway Analysis by Serum Metabolomics of Lung Cancer

Table 3

Clinical characteristics of subjects at baseline.

Samples	Control group	Preoperative lung cancer group (PRLC)	Postoperative lung cancer group (POLC)
Sample number	30	30	30
Age	60.35 ± 12.48	61.58 ± 10.67	61.58 ± 10.67
Sex (F/M)	19/11	21/9	21/9
CEA (ng/mL)	1.66 ± 0.72	3.29 ± 1.60^*#	2.24 ± 1.42
CYFRA21-1 (ng/mL)	1.30 ± 0.46	3.37 ± 2.66^*#	1.53 ± 0.72

 ^*Compared with control group, ; ^#compared with postoperative lung cancer group, .