Outcome in baseline (B) and intervention (I) cohorts in first 2 years
| Parameter | B | I | p value |
|---|---|---|---|
| SA, South Australia. | |||
| No. of probands | 41 | 33 | |
| Total no. of probands’ close relatives (all states) | 411 | 442 | |
| Average age of probands (years) | 52.3 | 52.0 | 0.9 |
| No. of female probands | 37 | 31 | 0.6 |
| No. of breast cancer kindreds | 31 | 25 | 1.0 |
| No. of close relatives per proband | 10.0 | 13.4 | 0.07 |
| No. of close relatives tested in SA | 62 | 88 | |
| No. of close relatives shown to be presumed non-carriers in SA | 27 | 59 | |
| Total no. of close relatives with carrier status defined in SA | 89 | 147 | |
| Average proportion of close relatives in each kindred with genetic status defined in SA | 23% | 40% | 0.001 |