Factors influencing analysis of the efficacy of probiotics combined with enteral nutrition in postoperative patients with colorectal cancer

Table 5 Comparison of immune indicators

Index	Good efficacy group (n = 279)	Poor efficacy group (n = 232)	t value	P value
IgA (g/L)
Preoperative	2.38 ± 0.42	2.37 ± 0.47	0.241	0.809
Postoperative day 1	2.21 ± 0.57	2.2 ± 0.39	0.008	0.993
Postoperative day 7	2.46 ± 0.48	2.34 ± 0.63	2.472	0.014
IgM (g/L)
Preoperative	1.28 ± 0.24	1.28 ± 0.18	0.073	0.941
Postoperative day 1	1.05 ± 0.12	1.04 ± 0.16	0.551	0.582
Postoperative day 7	1.31 ± 0.22	1.25 ± 0.31	2.553	0.011
IgG (g/L)
Preoperative	9.57 ± 1.62	9.39 ± 1.43	1.312	0.19
Postoperative day 1	8.67 ± 1.36	8.61 ± 1.47	0.449	0.653
Postoperative day 7	11.23 ± 1.89	10.71 ± 1.73	3.216	0.001
CD4+/CD8+
Preoperative	1.56 ± 0.37	1.55 ± 0.39	0.431	0.667
Postoperative day 1	1.43 ± 0.32	1.45 ± 0.3	0.686	0.493
Postoperative day 7	1.65 ± 0.35	1.57 ± 0.33	2.521	0.012

IgA: Immunoglobulin A; IgM: Immunoglobulin M; IgG: Immunoglobulin G.