Comparison of tumor marker levels before and after lung cancer chemotherapy in two groups.

Table 3: Comparison of tumor marker levels before and after lung cancer chemotherapy in two groups.

Group	CEA	CYFRA21-1	NSE
EP
Before treatment	3.97 ±1.29	3.98 ± 1.04	61.68 ± 16.20
After treatment	3.83 ± 1.33	3.87 ± 1.06	17.74 ± 4.84^*
EL
Before treatment	3.80 ± 0.95	3.49 ± 1.03	67.44 ± 12.21
After treatment	3.64 ± 0.99	3.37 ± 0.87	17.30 ± 5.38^*

Compared with before treatment, ^*P < 0.01.