TABLE 3.

Logistic regression analysis for live birth rate after FET among patients with different embryo transfer strategies.

	Unadjusted odds ratio (95% CI)	P-value	Adjusted odds ratio (95% CI)	P-value
Cleavage-stage embryo transfer
SET-GQE	1.00		1.00
SET-PQE	0.40 (0.24,0.67)	<0.001	0.49 (0.28,0.84)	0.009
DET-2GQE	2.46 (2.22,2.71)	<0.001	1.62 (1.40,1.89)	<0.001
DET-GQE+PQE	1.73 (1.50,1.99)	<0.001	1.25 (1.04,1.51)	0.018
DET-2PQE	1.43 (1.07,1.92)	0.017	1.10 (0.78,1.55)	0.578
Blastocyst transfer
SET-GQE	1.00		1.00
SET-PQE	0.56 (0.43,0.73)	<0.001	0.62 (0.46,0.83)	0.001
DET-2GQE	2.01 (1.61,2.53)	<0.001	1.76 (1.20,2.57)	0.003
DET-GQE+PQE	1.54 (1.16,2.04)	0.003	1.42 (0.93,2.15)	0.101
DET-2PQE	1.14 (0.81,1.61)	0.450	1.09 (0.67,1.76)	0.726

SET, single embryo transfer; DET, double embryos transfer; GQE, good quality embryo; PQE, poor quality embryo; FET: frozen-thawed embryo transfer. Adjusted maternal age, maternal BMI, infertility type, parity, duration of infertility, causes of infertility, number of two pronuclear (2PN) embryos, endometrial preparation protocol, and endometrial thickness.