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    Soya and isoflavone intakes associated with reduced risk of oesophageal cancer in north-west China

    Access Status
    Open access via publisher
    Authors
    Tang, L.
    Lee, Andy
    Xu, F.
    Zhang, T.
    Lei, J.
    Binns, Colin
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Tang, L. and Lee, A. and Xu, F. and Zhang, T. and Lei, J. and Binns, C. 2014. Soya and isoflavone intakes associated with reduced risk of oesophageal cancer in north-west China. Public Health Nutrition.
    Source Title
    Public Health Nutrition
    DOI
    10.1017/S1368980013003443
    ISSN
    1368-9800
    School
    Epidemiology and Biostatistics
    URI
    http://hdl.handle.net/20.500.11937/38813
    Collection
    • Curtin Research Publications
    Abstract

    Objective: To ascertain the association between soya consumption, isoflavone intakes and oesophageal cancer risk in remote north-west China, where the incidence of oesophageal cancer is known to be high. Design: Case-control study. Information on habitual consumption of soya foods and soya milk was obtained by personal interview. The intakes of isoflavones were then estimated using the US Department of Agriculture nutrient database. Logistic regression analyses were performed to assess the association between soya consumption, isoflavone intakes and oesophageal cancer risk. Setting: Urumqi and Shihezi, Xinjiang Uyghur Autonomous Region, China. Subjects: Participants were 359 incident oesophageal cancer patients and 380 hospital-based controls. Results: The oesophageal cancer patients consumed significantly less (P < 0·001) total soya foods (mean 57·2 (sd 119·0) g/d) and soya milk (mean 18·8 (sd 51·7) ml/d) than the controls (mean 93·3 (sd 121·5) g/d and mean 35·7 (sd 73·0) ml/d). Logistic regression analyses showed an inverse association between intake of soya products and the risk of oesophageal cancer. The adjusted odds were OR = 0·33 (95 % CI 0·22, 0·49) and OR = 0·48 (95 % CI 0·31, 0·74) for consuming at least 97 g of soya foods and 60 ml of soya milk daily (the highest tertiles of consumption), respectively, relative to the lowest tertiles of consumption. Similarly, inverse associations with apparent dose-response relationships were found between isoflavone intakes and oesophageal cancer risk. Conclusions: Habitual consumption of soya products appears to be associated with reduced risk of oesophageal cancer in north-west China. Copyright © The Authors 2014.

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