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Table 5 Characteristics of embryo development and embryo quality

From: Impact of GnRH analogues on oocyte/embryo quality and embryo development in in vitro fertilization/intracytoplasmic sperm injection cycles: a case control study

Embryo development

GnRH antagonist

GnRH agonist

Pvalue

presence of early cleavage (%)

39.6

(108/273)

32.8

(139/424)

0.07

number of blastomers on day 2

4.28

(± 1.39)

4.03

(± 1.34)

< 0.01

top quality embryos on day 2 (%)

23.9

(84/351)

26.8

(128/477)

0.34

presence of multinucleated blastomers (%)

13.7

(49/357)

13.0

(62/477)

0.76

amount of fragmentation on day 2 (%)

15.2

(± 10.2)

17.3

(± 12.0)

< 0.01