Table 2. Expression of SIgA, IgG, IL-2 and IL-10 and IL-2/IL-10 ratio before treatment in test groups and the control group.

Group	Number	SIgA	IgG*	IL-2*	IL-10*	IL-2/IL-10*
Control	100	1.605 (0.872)	2.923 (1.576)	62.454 (18.234)	30.629 (21.961)	5.743 (10.216)
LSIL	136	1.090 (1.347)	3.894 (5.94)	63.544 (21.894)	13.411 (6.909)	9.967 (14.876)
HSIL	263	1.296 (1.174)	6.617 (8.366)	45.095 (17.068)	18.443 (8.863)	4.418 (6.242)
CSCC	33	1.421 (1.009)	6.776 (9.587)	80.863 (72.047)	45.882 (16.573)	2.357 (2.429)
P		<0.0001	<0.0001	<0.0001	<0.0001	<0.0001

*, the difference between two groups is statistically significant.