Clinical outcome of fresh and vitrified-warmed blastocyst and cleavage-stage embryo transfers in ethnic Chinese ART patients

Table 5 Cumulative clinical outcome combining fresh and vitrified-warmed cycles in blastocyst and cleavage-stage transfer (age < 35 years)

	Cleavage-stage transfer	Blastocyst Transfer
No. of couples	284	194
Overall clinical pregnancies per couple, no. (%)	147/284(51.8)	136/194(70.1)^a
Fresh embryo transfer, no.	129	69
Vitrified-warmed embryo transfer, no.	18	67
Cumulative multiple pregnancy rate, n (%)	62/147(42.2)	54/136(39.7)
Singleton pregnancy rate, no.	85	82
Twin pregnancy rate, no.	60	52
Triplets pregnancy rate, no.	2	2

Note : Values are presented as number or number (%).
a:significant difference between cleavage-stage transfer and blastocyst transfer groups (p<0.05).

ISSN: 1757-2215