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Table 4 Pregnancy (PR) and spontaneous miscarriage (SAb) rates by female age for cycles in which flow cytometrically sorted human sperm were used for IVF/ICSI

From: The effectiveness of flow cytometric sorting of human sperm (MicroSort®) for influencing a child’s sex

Agea (yr) Cycles (n) Donor cycles (n) Clinical pregnancies (n) PR per cycle (%)b SAb (n) Clinical loss (%)
<30 334 173 146 43.7 11 7.5
30-34 822 46 278 33.8 23 8.3
35-39 1434 5 374 26.1 43 11.5
>39 163 5 31 19.0 4 12.9
Unconfirmed 204 201 82 40.2 12 14.6
All Cycles 2957 427 911 30.8 93 10.2
  1. aAge of egg source at time of procedure (wife or egg donor, if used).
  2. bStatistically significant decrease with increasing age (p < 0.0001), excluding unconfirmed age.