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Table 2 PN pattern in embryos

From: Severe teratozoospermia and its influence on pronuclear morphology, embryonic cleavage and compaction

  Group A Group B
PN pattern Embryos transferred n = 248 Embryos frozen on day 3 n = 162 Embryos in extended culture n = 471 Blastulated embryos from extended culture Embryos transferred n = 254 Embryos frozen on day 3 n = 151 Embryos in extended culture n = 432 Blastulated embryos from extended culture
OP 50% 54% 46% 18% 45% 43% 51% 20%
O 14% 15% 10% 3% 11% 12% 10% 4%
1 2% 1% 2% 1% 2% 2% 2% 1%
2 19% 16% 22% 6% 20% 24% 22% 8%
3 0% 1% 3% 1% 4% 2% 1% 0%
4 8% 9% 12% 4% 9% 11% 9% 1%
5 6% 4% 5% 1% 9% 7% 5% 2%
  1. Group A: ICSI was done using severe teratozoospermic sperm, 0-2% normal morphology, Group B: ICSI was done using dysmorphic sperm, 5-13% normal morphology. P values for data above all > 0.05.