From: Risk of breast cancer among daughters of mothers with diabetes: a population-based cohort study
Number of breast cancer cases | ||||
---|---|---|---|---|
Age of daughter at diagnosis of breast cancer | Observed | Expected | SIR | 95% CI |
< 55 | 4,430 | 5,332 | 0.83 | (0.81 to 0.86) |
≥ 55 | 3,526 | 3,872 | 0.91 | (0.88 to 0.94) |