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Table 4 Maternal and paternal age at child birth for all conception groups

From: Do intrauterine or genetic influences explain the foetal origins of chronic disease? A novel experimental method for disentangling effects

  Homologous IVF Sperm donation Egg donation Embryo donation Gestational surrogacy Total
  Mean
SD Range
Mean
SD Range
Mean
SD Range
Mean
SD Range
Mean
SD Range
Mean
SD Range
Maternal age at birth of child 34.14 33.88 37.88 41.23 36.07 35.15
  3.53 3.82 5.89 6.21 5.34 4.74
  25, 45 25, 43 23, 55 30, 54 27, 47 23, 55
Paternal age at birth of child 36.84 38.73 38.78 45.61 38.00 38.01
  5.84 7.02 6.64 7.02 6.47 6.57
  23, 71 27, 60 24, 58 34, 62 27, 53 23, 71