[Retracted] A Clinical Study of the Effect of Estradiol Valerate on Sleep Disorders, Negative Emotions, and Quality of Life in Perimenopausal Women

Table 3

Comparison of the clinical efficacy of the treatment.

Group	Recovery	Remarkable effect	Effective	Invalid
Study group (n = 50)	18	22	6	4
Control group (n = 50)	12	20	8	10
Z-value	−2.008
value	0.045