| 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 |