Table 3: Embryonic parameters in FET cycles, clinical pregnancies and deliveries (n=273)
Parameter	Clinical pregnancy		P value	Live Birth		P value
	Yes	No		Yes	No
Embryo quality before freezing	1.78± 0.43	1.89± 0.46	0.066*	1.82± 0.39	1.87± 0.47	0.274*
Blastomere survival rate after thawing(%)	77.42%	76.85%	0.845*	78.32%	76.70%	0.617*
*t-test