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Table 2 Comparison of embryo characteristics between two groups

From: Effects of cumulus cell removal time during in vitro fertilization on embryo quality and pregnancy outcomes: a prospective randomized sibling-oocyte study

 

3 h group

20 h group

P

Cleavage rate, n (%)

988(86.7)

969(85.3)

0.32

Available embryo rate, n (%)

705(61.9)

718(63.2)

0.52

Optimal embryo rate, n (%)

524(78)

503(71.9)

0.01

Blastocyst formation rate, n (%)

323(63.7)

342(61.5)

0.46

Optimal blastocyte rate, n (%)

138(42.7)

140(40.9)

0.64

Frozen blastocyst rate, n (%)

211(65.3)

225(65.8)

0.90