Table 5.

Clinical pregnancy rates per IVF cycle with PGD/PGS by SNP or aCGH microarrays categorized by timing of the embryo biopsy at either cleavage stage or blastocyst stage of development. Statistical comparisons were performed using Fisher’s exact analysis and a p-value of greater than 0.05 was considered not significant (NS)

Clinical pregnancy rates	SNP (total cycles: 58)	aCGH (total cycles: 17)	p-value	Total
Cleavage stage biopsy	21/36 (58 %)	5/8 (63 %)	NS	26/44 (59 %)
Trophectoderm biopsy	14/22 (64 %)	6/9 (67 %)	NS	20/31 (65 %)