Table 5:

Comparison of treatment efficacy in two groups (n (%))

Group	Number of cases	Marked effective	Effective	Total effective rate(%)
Control	38	13 (34.2)	20 (52.6)	86.8
Observation	38	6 (15.8)	18 (47.4)	63.2
χ2	——	9.028	0.541	14.852
P	——	0.003	0.462	0