Table 1

 Outcome in baseline (B) and intervention (I) cohorts in first 2 years

ParameterBIp value
SA, South Australia.
No. of probands4133
Total no. of probands’ close relatives (all states)411442
Average age of probands (years)52.352.00.9
No. of female probands37310.6
No. of breast cancer kindreds31251.0
No. of close relatives per proband10.013.40.07
No. of close relatives tested in SA6288
No. of close relatives shown to be presumed non-carriers in SA2759
Total no. of close relatives with carrier status defined in SA89147
Average proportion of close relatives in each kindred with genetic status defined in SA23%40%0.001