Table 2. Comparison of miscarriage rate and live birth rate between GnRH-a treatment and GnRH-a-free groups with logistics regression.

	OR	95% CI	P value
Miscarriage rate	0.261	0.071–0.964	0.044#
Live birth rate	2.453	1.252–4.808	0.009#

^#, adjusted by maternal age, infertility type. GnRH-a, gonadotrophin-releasing hormone agonist; OR, odds ratio; CI, confidence interval.