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Table 4 Rate of fertilization method, of normal fertilization and of nucleolar distribution

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

Fertilization

GnRH antagonist

GnRH agonist

Pvalue

ICSI frequency (%)

74.8

(74/99)

68.8

(66/96)

0.22

normal fertilization (all) (%)

55.9

(363/649)

60.4

(489/810)

0.09

normal fertilization (ICSI) (%)

57.7

(225/390)

59.9

(284/474)

0.51

normal fertilization (IVF) (%)

53.3

(138/259)

61.0

(205/336)

0.06

number of fertilized oocytes/cycle

(mean + SD)

3.7 (± 3.0)

5.1 (± 3.4)

< 0.01

normal pronuclear morphology (%)

49.3

(176/357)

58.0

(280/483)

< 0.01