Table 3.

The comparison of serum IL-1 before and after treatments among three groups ($\overline{x}\pm s$, ng/ml)

Group	n	Before treatment	After treatment
I	20	1.3 ± 0.3	0.8 ± 0.2**
II	20	1.2 ± 0.2	0.6 ± 0.3**
III	20	1.4 ± 0.3	1.0±0.2*

Compared to the level before treatment with group: * P < 0.05; Compared to Group III after treatment: ** P < 0.05