Table 1

Number approached
SentReturnedDeclinedNumber interviewedMean age yearsRange
*The woman who returned the form but declined to take part in our study was one of the women for whom the mutation found in the ABC study was not confirmed by clinical retesting.
Group A16101*947.439 to 56
Group B12112952.848 to 62
Group C1085342.632 to 61