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Table 3 Comparison of pregnancy outcomes 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

Patients recruited, (n)

74

60

 

Embryos transfer, (n)

148

120

 

Mean number of embryos transferred, (n)

2.0

2.0

 

Implantation rate, n (%)

59(39.9)

49(40.8)

0.87

Clinical pregnancy rate, n (%)

39(52.7)

33(55)

0.07

Ongoing pregnancy rate, n (%)

35(47.3)

28(46.7)

0.90

Live birth rate, n (%)

32(43.2)

22(36.7)

0.40

Twins rate, n (%)

16(50)

7(31.8)

0.18

Premature delivery rate, n (%)

11(14.9)

5(8.3)

0.20