Therapeutic effects of Buzhong Yiqi decoction in patients with spleen and stomach qi deficiency after routine surgery and chemotherapy for colorectal cancer

Table 3 Comparison of immune function before and after treatment between the two groups (mean ± SD)

Index		Control group (n = 50)	Observation group (n = 50)	t value	P value
CD3+ (%)	1 d preoperatively	55.31 ± 3.72	55.86 ± 3.88	1.448	0.151
	14 d postoperatively	59.03 ± 4.26a	64.32 ± 4.67a	6.025	< 0.001
CD4+ (%)	1 d preoperatively	28.26 ± 4.46	28.84 ± 4.62	0.132	0.895
	14 d postoperatively	29.16 ± 4.53	31.78 ± 3.46a	3.619	< 0.001
CD8+ (%)	1 d preoperatively	26.89 ± 4.33	26.77 ± 4.67	0.077	0.939
	14 d postoperatively	20.67 ± 3.35a	23.77 ± 3.24a	4.576	< 0.001
CD4+/CD8+ (%)	1 d preoperatively	1.17 ± 0.26	1.11 ± 0.24	1.088	0.279
	14 d postoperatively	1.32 ± 0.18a	1.63 ± 0.19a	10.051	< 0.001
NK cell (%)	1 d preoperatively	16.23 ± 1.46	16.75 ± 1.49	1.558	0.122
	14 d postoperatively	17.31 ± 1.17	20.45 ± 1.01a	13.240	< 0.001
IgG (g/L)	1 d preoperatively	6.21 ± 1.53	6.07 ± 1.47	0.405	0.686
	14 d postoperatively	8.77 ± 1.78a	11.24 ± 1.58a	7.882	< 0.001
IgA (g/L)	1 d preoperatively	2.12 ± 0.32	2.04 ± 0.36	1.110	0.270
	14 d postoperatively	2.57 ± 0.40a	2.89 ± 0.38a	4.144	< 0.001
IgM (g/L)	1 d preoperatively	1.89 ± 0.33	1.85 ± 0.29	0.578	0.565
	14 d postoperatively	1.97 ± 0.34a	2.29 ± 0.38a	14.364	< 0.001

^aP < 0.05 vs before treatment.

CD3+: Cluster of differentiation 3; CD4+: Cluster of differentiation 4; CD8+: Cluster of differentiation 8; IgA: Immunoglobulin A; IgG: Immunoglobulin G; IgM: Immunoglobulin M; NK: Natural killer.