Table 2.
Pregnancy outcomes of FETs
Values are presented as mean±standard deviation.
FET, frozen-thawed embryo transfer; PTEC, post-thaw extended culture; NS, not significant.
ap-value presents the significance of the difference between cleavage staged FET and blastocyst FET; bSignificantly different between B-FET and PTEC-blastocyst FET (p<0.05); cSignificantly different between C-FET and B-FET.