| Number approached | ||||||
|---|---|---|---|---|---|---|
| Sent | Returned | Declined | Number interviewed | Mean age years | Range | |
| *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 A | 16 | 10 | 1* | 9 | 47.4 | 39 to 56 |
| Group B | 12 | 11 | 2 | 9 | 52.8 | 48 to 62 |
| Group C | 10 | 8 | 5 | 3 | 42.6 | 32 to 61 |