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PURPOSE: The purpose of the study was to estimate the number of new breast cancer cases in France in 2015 attributable to breastfeeding for durations below recommendations (at least 6 months per child), and cases prevented through historical breastfeeding. As a secondary analysis, the corresponding numbers for ovarian cancer were estimated. METHODS: Historical breastfeeding data were obtained from population surveys. Duration of breastfeeding data were obtained from the French Épifane cohort study. Relative risks were obtained from meta-analyses, cohort, and case-control studies. Cancer incidence data were obtained from the French Network of Cancer Registries. A 10-year latency period was assumed. RESULTS: Among parous women 25 years of age and older, 14.1% breastfed for at least 6 months per child born before 2006. As a result, 1,712 new breast cancer cases (3.2% of all new breast cancer cases) were attributable to breastfeeding for

Original publication

DOI

10.1007/s10552-018-1015-2

Type

Journal article

Journal

Cancer Causes Control

Publication Date

03/2018

Volume

29

Pages

325 - 332

Keywords

Breast, Breastfeeding, Cancer, France, Lactation, Ovary, Adult, Aged, Breast Feeding, Breast Neoplasms, Female, France, Humans, Incidence, Middle Aged, Ovarian Neoplasms, Registries, Risk Factors