Objective: To assess the feasibility of offering community testing for
carrier status of Delta F508, a gene mutation associated with cystic
fibrosis (CF). Design: Prospective pilot survey. Setting: General prac
tice, the two main high schools and workplaces in the country towns of
Young and Harden (combined population, 14940; with 7707 people aged 1
6-55 years) in New South Wales (NSW). Participants: Individuals aged 1
6 years and over. Main outcome measures: Number of Delta F508 carriers
, test uptake rates, mode of learning about the testing, motivation fo
r testing, retention of knowledge about CF, and test results and emoti
onal effects of knowledge about carrier status. Results: We tested 610
people (8% of the population aged 16-55 years) and identified 47 carr
iers (20% of the expected number in the 7707 people aged 16-55 years).
Testing in schools had the highest uptake. Retention of knowledge was
high; all Delta F508-positive individuals recalled their carrier stat
us accurately. Anxiety was transient among carriers; over 90% of all r
espondents felt they had made the right decision to be tested. Conclus
ions: We recommend community testing for carrier detection and suggest
targeting those with a family history of CF and girls aged over 16 in
high schools.