Effects of Tongluo Jiedu prescription on immune function and oxidative stress in patients with oral cancer

Table 4 Comparison of immunoglobulin levels before and after treatment (mean ± SD, g/L)

Indicators	Time	Observation group (n = 40)	Control group (n = 40)	t	P value
IgA	Before treatment	2.81 ± 0.59	2.72 ± 0.55	0.706	0.483
	After treatment	2.46 ± 0.40a	1.92 ± 0.41a	5.962	0.000
IgG	Before treatment	10.57 ± 2.34	11.02 ± 2.28	0.871	0.386
	After treatment	7.64 ± 1.49a	5.51 ± 1.21a	7.018	0.000
IgM	Before treatment	1.02 ± 0.24	1.06 ± 0.22	0.777	0.440
	After treatment	0.71 ± 0.17a	0.52 ± 0.13a	5.615	0.000

^aP < 0.05, compared with before treatment.