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Title: The DietCompLyf study: a prospective cohort study of breast cancer survival and phytoestrogen consumption
Authors: Swann R; Robertson CE; Dwek MV; Perkins KA; Velentzis LS; Ciria C; Dutton SJ; Mulligan AA; Woodside JV; Cantwell MM; Leathem AJ
Categories: Cancer Type - Breast Cancer
Etiology - Exogenous Factors in the Origin and Cause of Cancer
Keywords: Adult; Diet Surveys; Dietary Supplements; Female; Great Britain; Hospitals; Isoflavones; Lignans; Menarche; Middle Aged; Age Factors; Multicenter Studies; Parity; pharmacology; Phytoestrogens; Plant Extracts; Prognosis; Prospective Studies; Quality of Life; Questionnaires; breast; Recurrence; Risk; Risk Factors; Smoking; survival; Survivors; Women; Breast Feeding; Breast Neoplasms; cancer survival; Cohort Studies; diagnosis
Year: 2013
Journal Title: Maturitas
Volume: 75
Issue: 3
Page number start: 232
Page number end: 240
Abstract: DietCompLyf is a multi-centre prospective study designed to investigate associations between phytoestrogens - naturally occurring plant compounds with oestrogenic properties - and other diet and lifestyle factors with breast cancer recurrence and survival. 3159 women with grades I-III breast cancer were recruited 9-15 months post-diagnosis from 56 UK hospitals. Detailed information on clinico-pathological, diet, lifestyle and quality of life is collected annually up to 5 years. Biological samples have also been collected as a resource for subsequent evaluation. The characteristics of the patients and associations between pre-diagnosis intake of phytoestrogens (isoflavones and lignans; assessed using the EPIC-Norfolk UK 130 question food frequency questionnaire) and breast cancer (i) risk factors and (ii) prognostic factors are described for 1797 women who had complete data for all covariates and phytoestrogens of interest. Isoflavone intakes were higher in the patients who were younger at diagnosis, in the non-smokers, those who had breast-fed and those who took supplements. Lignan intakes were higher in patients with a higher age at diagnosis, in ex-smokers, those who had breast-fed, who took supplements, had a lower BMI at diagnosis, lower age at menarche and were nulliparous. No significant associations between pre-diagnosis phytoestrogen intake and factors associated with improved breast cancer prognosis were observed. The potential for further exploration of the relationship between phytoestrogens and breast cancer recurrence and survival, and for the establishment of evidence to improve dietary and lifestyle advice offered to patients following breast cancer diagnosis using DietCompLyf data is discussed
Programme: Cancer Causes
Division: Cancer Research Division
DOI: 10.1016/j.maturitas.2013.03.018
Appears in Collections:Research Articles

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