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Table 1 Patient data

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

  Group A Group B
Number of patients 110 125
Number of transfers 121 135
Average age 31.88 ± 2.739 32.59 ± 2.64
Average oocytes per retrieval 12.99 ± 5.78 13.23 ± 6.84
Average mature oocytes per retrieval 9.93 ± 4.98 9.21 ± 4.37
Number of embryos 901 861
Fertilization rate 79% 78%
Average number of cells in transferred embryos, observed on day 3 7.50 ± 1.35 7.34 ± 1.50
Average embryos transferred 2.14 ± 0.39 2.12 ± 0.44
Implantation rate 33% 33%
Clinical pregnancy rate 55% 53%
  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.