Table 2.

Outcomes of frozen embryo transfer.

	Control Group	hCG Group	P value
Endometrium thickness	0.9 ± 0.1	1.0 ± 0.1	<.01 *
Number of transferred embryos			0.612
Single embryo transfer	40.8% (97/238)	38.4% (133/216)
Multiple embryo transfer	59.2% (141/238)	61.6% (13/216)
Number of high-quality embryos transferred	0.6 ± 0.7	0.5 ± 0.6	.780
Clinical pregnancy rate	45.8% (109/238)	55.1% (119/216) (119/216)	.048 *
Live birth rate	29.0% (69/238)	36.1% (78/21 6)	.105
Early abortion rate	10.1% (11/109)	5.0% (6/119)	.147
Late abortion rate	5.5%(6/109)	5.0% (6/119)	.876
Preterm birth rate	4.6% (5/109)	4.2% (5/119)	.887
Ectopic pregnancy rate	6.4% (7/109)	5.0% (6/119)	.654
Multiple pregnancy rate	16.5% (18/109)	15.1% (18/119)	.774

^*P < .05.