To the Editor: This question was recently posed by Massie and colleagues in an editorial in the Journal.1 We have experience in providing cystic fibrosis (CF) carrier testing in pregnancy and in those planning pregnancy. In 1998, we ran a 12-month pilot program, the Double Testing Program, offering ΔF508 carrier testing to couples attending the John Hunter Hospital, Newcastle, NSW, for nuchal translucency screening. Of 491 participants, 84% chose CF carrier testing; 23 carrier–non-carrier couples were identified, and no carrier–carrier couples. A postnatal questionnaire compared knowledge of CF, anxiety levels and perceptions of the service between non-carrier couples and couples in which one partner was a carrier.2 Both groups were very satisfied with the service, with no increased levels of anxiety.
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