Table 3.

Reproductive outcomes of frozen-thawed ET cycles

Variables	Thawed cleavage-stage group (n=110)	Post-thaw extended culture blastocysts group (n=72)	P value
Clinical pregnancies/ET cycle	45/110 (40.91)	41/72 (56.94)	0.034
Implantation/ET	52/262 (19.84)	52/151 (34.43)	0.001
Blighted	5/110 (4.54)	4/72 (5.55)	0.508
EP	0/110 (0)	1/72 (1.38)	0.396
Live birth delivery/ET cycle	37/110 (33.63)	35/72 (49.29)	0.043
Miscarriage/clinical pregnancy	3/110 (2.72)	1/72 (1.38)	<0.999
Twin birth/clinical pregnancy	7/110 (6.36)	10/72 (13.9)	0.088
Birth weight of first born	3012.08 ± 823.17	2964.57 ± 763.96	0.803
Birth weight of second born	1891.80 ± 554.18	2181.90 ± 594.15	0.379

Data are written as mean ± SD or n (%). P value obtained by the independent sample t test and chi square test. Statistically significant level was 0.05. ET; Embryo transfer and EP; Ectopic pregnancy.