Table 3.

Peripheral blood immunoglobins and complements of patients with UC ($\stackrel{-}{x}$ ± s, g/L).

Group	n	IgG		IgA		IgM		C3		C4
		BT	AT	BT	AT	BT	AT	BT	AT	BT	AT
Experiment group	41	12.7 ± 2.8	12.3 ± 2.4	2.36 ± 0.84	2.26 ± 0.76	1.56 ± 0.73	1.43 ± 0.70	1.08 ± 0.34	1.03 ± 0.33	0.31 ± 0.12	0.30 ± 0.11
Control group	41	13.2 ± 2.9	12.9 ± 2.8	2.48 ± 1.23	2.42 ± 1.01	1.51 ± 0.80	1.48 ± 0.72	1.06 ± 0.28	1.02 ± 0.27	0.27 ± 0.10	0.27 ± 0.11
t value	—	0.794	1.042	0.516	0.811	0.296	0.319	0.291	0.311	1.640	1.235
P value	—	0.430	0.299	0.633	0.419	0.765	0.756	0.77	0.742	0.106	0.226

BT stands for “before treatment”. AT stands for “two months after treatment”. The statistics using t-test.