The Impact of Preconception TSH on the Reproductive Outcomes of Infertile Women Undergoing the First Fresh D3 Embryo Transfer Cycle

Table 4

The obstetric outcomes of the women undergoing the first fresh D3 embryo transfer.

		Low-TSH group (n = 471)	High-normal TSH group (n = 385)
Number of live births	Singleton	312 (62.2%)	274 (71.2%)	0.139
	Twin	159 (33.8%)	111 (28.8%)
Birth weight (g)	Singleton	3345 (575.7)	3390 (545.2)	0.334
	Twin	2527.9 (479.1)	2566.5 (445.1)	0.342
Birth length (cm)	Singleton	50.2 (2.2)	50.2 (2.3)	0.943
	Twin	48.1 (2.7)	48.1 (2.6)	0.904
Gestational age (weeks)	Singleton	38.9 (1.8)	39 (1.6)	0.621
	Twin	36.2 (2.2)	36.5 (1.6)	0.157
Preterm birth	Singleton	36 (11.5%)	19 (6.9%)	0.065
	Twin	73 (45.9%)	51 (45.9%)	1.000
Low-weight birth	Singleton	14 (4.4%)	10 (3.6%)	0.679
	Twin	51 (32.0%)	35 (31.5%)	1.000