. Author manuscript; available in PMC: 2012 Jan 21.

Published in final edited form as: J Clin Endocrinol Metab. 2005 Mar 22;90(6):3606–3613. doi: 10.1210/jc.2004-1902

Table II.

Summary of transferred embryos

	FET Group		COH Group

	Pregnant	Non-pregnant	Pregnant	Non-pregnant
	n=3	n=15	n=7	n=11
# embryos/transfer	3	2.5	2.42	2.45
# embryos by grade
A (%)	0 (0%)	4 (10.5%)	1 (5.9%)	1 (3.7%)
B (%)	6 (66.7%)	16 (42.1%)	6 (35.3%)	11 (40.7%)
C (%)	3 (33.3%)	18 (47.4%)	10 (58.8%)	15 (55.6%)

Definition of Embryo Grades: A = regularly shaped, equally sized blastomeres with no fragmentation; B = irregularly shaped and/or unequally sized blastomeres with no fragmentation; C = embryos with minor (<25%) fragmentation irrespective of blastomere shape or size.