Purpose: To document our experience with fragile X carrier screening.
Methods: In this study, 29,103 women with no known or suspected family history of fragile X syndrome were offered fragile X carrier screening during their prenatal genetic counseling visit. Screening acceptance was analyzed by referral indication, carrier frequencies documented, and prenatal outcome data presented.
Results: Overall, 7.9% accepted carrier screening. The premutation frequency was 1 in 382, and the intermediate allele frequency was 1 in 143.
Conclusions: Fragile X screening is a desirable option for some women seeking prenatal genetic counseling and should be made available to this population.