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Table 3 Observed and expected breast cancers among daughters of mothers with diabetes by family history

From: Risk of breast cancer among daughters of mothers with diabetes: a population-based cohort study

 

Number of breast cancer cases

  

Family history of breast cancer

Observed

Expected

SIR

95% CI

Yes

696

488

1.43

(1.32 to 1.54)

No

7,260

8,716

0.83

(0.81 to 0.85)

  1. CI, confidence interval; SIR, standardized incidence ratio.