1 ween genetic ancestry and breast cancer-specific mortality (tests were two-sided).

2                                                 Statistical tests were two sided and P < 5 x 10(-8) was considered statis

3                                             All statistical tests were two sided and unadjusted for multiple comparisons.

4                                             All statistical tests were two sided.

5 elative risks and 95% confidence intervals; all statistical tests were two sided.

6                                             The statistical tests were two sided, with a type-I error set at alpha of .05

7                                                 Statistical tests were two-sided.

8 d-effects models were used for analyses and all statistical tests were two-sided.

9                                             All statistical tests were two-sided.

10 s were estimated using logistic regression, and statistical tests were two-sided.