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|Title:||Diet, reproductive factors and lung cancer risk among chinese women in singapore: Evidence for a protective effect of soy in nonsmokers||Authors:||Seow, A.
|Issue Date:||20-Jan-2002||Citation:||Seow, A., Poh, W.-T., Teh, M., Eng, P., Wang, Y.-T., Tan, W.-C., Chia, K.-S., Yu, M.C., Lee, H.-P. (2002-01-20). Diet, reproductive factors and lung cancer risk among chinese women in singapore: Evidence for a protective effect of soy in nonsmokers. International Journal of Cancer 97 (3) : 365-371. ScholarBank@NUS Repository. https://doi.org/10.1002/ijc.1615||Abstract:||The factors associated with risk of lung cancer among nonsmokers have not been fully elucidated, but dietary factors have consistently been shown to play a role. Chinese women are unique in having a high incidence of lung cancer despite a low smoking prevalence. This population is also known to have a high intake of soy, a dietary source of phytoestrogens. We conducted a hospital-based case-control study among Singapore Chinese women, comprising 303 cases and 765 age-matched controls, of whom 176 cases and 663 controls were lifetime nonsmokers. Data on demographic background, reproductive factors and dietary intake of fruit, vegetables and soy foods were obtained by in-person interview. We observed an inverse association between intake of total, cruciferous and non-cruciferous vegetables and risk of lung cancer among smokers. Although smokers in the highest tertile of fruit intake also had a lower risk, this was not statistically significant. Higher intake of soy foods significantly reduced risk of lung cancer among lifetime nonsmokers, but not among smokers. When soy isoflavonoid intake in mg/week was computed based on frequency and portion size of intake of eight common local soy foods, the adjusted OR among nonsmokers for the highest tertile compared to the lowest was 0.56, 95% Cl 0.37-0.85 (p for trend||Source Title:||International Journal of Cancer||URI:||http://scholarbank.nus.edu.sg/handle/10635/113436||ISSN:||00207136||DOI:||10.1002/ijc.1615|
|Appears in Collections:||Staff Publications|
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