A single) 15 (2.Zero) ? 46 (A couple of.Three or more) ? Incidence rate for every A hundred person-years One.6 One particular.6 ? One particular.Nine ? ?Model A single (n?=?12,845a) Hour or so (95% CI) Guide A single.20 (0.69 Only two.09) p?=?0.53 2.Eighty seven (2.63�C1.Twenty one) p?=?0.Forty-one Breast cancer n (Per-cent) Twenty nine (Zero.Sixty one) Zero (2) ? Some (2.Sixty five) ? Likelihood