Table 4 Expected over observed (E/O) ratio and 95% confidence interval (CI) by decile of relative or absolute risk score among 19 cohorts within the PBCCG in testing dataset (N = 261,130, breast cancer cases = 3,226)

1

1.40 (1.39–1.42)

0.59 (0.58–0.60)

2

1.19 (1.18–1.20)

0.69 (0.68–0.70)

3

1.19 (1.18–1.19)

0.93 (0.92–0.94)

4

1.22 (1.21–1.23)

0.98 (0.98–0.99)

5

1.32 (1.31–1.33)

1.02 (1.01–1.02)

6

1.12 (1.12–1.13)

1.04 (1.04–1.05)

7

1.12 (1.11–1.13)

1.23 (1.22–1.24)

8

1.11 (1.10–1.11)

1.35 (1.34–1.36)

9

1.20 (1.20–1.21)

1.41 (1.41–1.42)

10

1.15 (1.14–1.15)

1.48 (1.48–1.49)