Odds ratio

95% CI

P-value

low

up

<40 vs. ≥40

0.7

0.3

1.5

0.39

Breast cancer sufferers

Yes vs. No

1.4

0.6

3.2

0.48

Examination history

Yes vs. No

6.4

2.0

19.8

0.001

Self-examination history

Yes vs. No

2.5

1.1

5.8

0.03