Oral contraceptive and reproductive risk factors for ovarian cancer within sisters in the breast cancer family registry.

Br J Cancer · 2014 · PMC3929882 · PMID 24398512

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did not reach statistical significanceno p-value reported

In all other models, there was a suggestion of an increased risk of ovarian cancer in women with one child compared with nulliparous women, but these results did not reach statistical significance.

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