Objective: To assess the practicability and monitor the results of an active carrier testing program among relatives of cystic fibrosis (CF) patients.
Methods: Parents of CF patients in the Veneto and Trentino regions of northeastern Italy were asked to help recruit relatives aged between 18 and 45 years for CF mutation testing.
Results: Of 409 enrolled CF parents, 59.6% agreed to send to the CF Center family composition data of relatives up to the third degree, and 28.8% recruited relatives to carrier testing, providing names and addresses of those who, being contacted, expressed a willingness to be tested. The participation of parents was higher if they were young and had a child recently diagnosed with CF. Recruiting parents indicated 333 close relatives (59%) for testing. When contacted by the CF Center, 170 of these 333 (51%) attended for testing. The percentage of close relatives who spontaneously asked for the test was 5.4% before the carrier testing program started; it rose to 25.3% following the introduction of the active strategy.
Conclusions: The participation of the parents of CF patients is an important factor affecting the utilization of testing by relatives. Besides this, the influence of a favorable medical and cultural context (participation of gynecologists and family doctors in testing programs, genetic education of the general population) has to be considered.
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