Skip to main content

Advertisement

Table 6 Effects of paternal age in ICSI

From: Sperm quality and paternal age: effect on blastocyst formation and pregnancy rates

Paternal age (years) 2 0 < Age < 29 30 < Age < 39 40 < Age < 50 Age > 51 P value
Mean maternal age (years ± SD) 27.54 ± 4.55 32.69 ± 4.12 36.72 ± 3.95 36.53 ± 4.90 <0.0001
Number of ICSI 226 949 410 47  
Mean number of injected oocytes ± SD 8.69 ± 4.27 7.89 ± 4.53 7.15 ± 4.36 7.32 ± 3.82 <0.0001
Fertilization rate (%) 61.05 65.20 64.57 70.35 0.0007
Mean number of embryos at day 2 ± SD 5.11 ± 3.58 4.92 ± 3.60 4.46 ± 3.45 4.74 ± 3.09 0.0400
Mean number of embryos at day 3 ± SD 4.24 ± 3.28 4.27 ± 3.48 3.88 ± 3.18 4.32 ± 3.30 0.3273
Mean number of embryos in prolonged culture ± SD 2.89 ± 3.51 2.73 ± 3.29 2.35 ± 3.20 2.45 ± 2.86 0.0821
Mean number of obtained blastocysts ± SD 1.46 ± 2.39 1.31 ± 2.00 1.10 ± 1.91 1.13 ± 1.94 0.1376
Rate of blastocyst formation (%) 50.38 48.11 46.99 46.09 0.5682
Mean number of transferred blastocysts ± SD 0.044 ± 0.227 0.077 ± 0.282 0.076 ± 0.274 0.064 ± 0.247 0.8895
Mean number of frozen blastocysts ± SD 0.619 ± 1.300 0.544 ± 1.170 0.410 ± 1.250 0.617 ± 1.410 0.0069
Rate of useful blastocysts (%) 45.59 47.27 43.93 60.38 0.1271
Rate of clinical pregnancies (%) 41.50 41.00 32.10 28.20 0.0162
Rate of miscarriages (%) 17.40 14.60 20.70 45.50 0.3510
  1. SD standard deviation