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. 1997 Oct;6(5):473-8.
doi: 10.1097/00008469-199710000-00007.

E3N, a French cohort study on cancer risk factors. E3N Group. Etude Epidémiologique auprès de femmes de l'Education Nationale

F Clavel-Chapelon  1 , M J van Liere, C Giubout, M Y Niravong, H Goulard, C Le Corre, L A Hoang, J Amoyel, A Auquier, E Duquesnel
Affiliations

E3N, a French cohort study on cancer risk factors. E3N Group. Etude Epidémiologique auprès de femmes de l'Education Nationale

F Clavel-Chapelon et al. Eur J Cancer Prev. 1997 Oct.

Abstract

This paper describes the design of E3N, a prospective cohort study conducted in France on risk factors for female cancers. The cohort comprises 100,000 women, aged 40-65 years at baseline in 1990. Participants were asked to complete questionnaires every 18 months. The main hypotheses studied concern the relationship between diet and cancer and between hormonal treatments and cancer. All cancers diagnosed are registered, together with other diseases (cardiovascular diseases, diabetes, osteoporosis). The study population and the follow-up procedure are described.

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