Table 1.

Pathological observation of liver condition

Group	n	Liver condition					U
		0	I	II	III	IV
Model	13	0	0	0	4	9
High-dose	12	0	5	3	2	2	3.26a
Medium-dose	14	0	6	4	3	1	4.17b
Low-dose	13	0	3	2	6	2	2.96a

U represents the RIDIT value of the two groups, P < 0.05 indicates U > 1.96, P < 0.01 indicates U > 2.58.

^aP < 0.05,

^bP < 0.01 vs model group.