A systematic review of population screening for fragile X syndrome.
Hill, Melissa K. PhD 1,2; Archibald, Alison D. Grad Dip Genet Couns 1,3; Cohen, Jonathan FRACGP 4,5; Metcalfe, Sylvia A. PhD 1,3
Genetics in Medicine.
12(7):396-410, July 2010.
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Purpose: To conduct a systematic review of literature regarding population-based screening for fragile X syndrome in newborns and women of reproductive age, either before or during pregnancy.
Methods: Seven electronic databases were searched for English language studies published between January 1991 and November 2009. Data extraction was performed for all included studies. Results were synthesized using a narrative approach.
Results: One article that examined offering newborn screening for fragile X syndrome and 10 that examined the offer of fragile X syndrome screening to women of reproductive age were identified. Two of these articles also addressed psychosocial aspects of population screening for fragile X syndrome such as attitudes to screening and experiences of screening, and a further nine addressed these issues alone. Studies exploring psychosocial issues demonstrated challenges for counseling arising from a lack of awareness or personal experience with fragile X syndrome in the general population.
Conclusions: Targeted counseling and educational strategies will be essential to support women from the general population. It is crucial that future studies offering screening for fragile X syndrome explore a range of psychosocial aspects in addition to looking at uptake of testing and mutation frequency.
(C)2010The American College of Medical Genetics