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Soy Intake Is Associated With Lower Endometrial Cancer Risk: A Systematic Review and Meta-Analysis of Observational Studies.

Abstract

Epidemiologic studies reporting the effect of soy intake on endometrial cancer risk conveyed conflicting results. We systematically reviewed the literature to investigate whether there was an inverse relation between dietary soy intake and endometrial cancer risk. PubMed, EMBASE, the Cochrane Library, and 4 main Chinese literature databases were searched from their inception to August 25, 2015 for both case-control studies and cohort studies that assessed the effect of soy intake on endometrial cancer risk. Study-specific most-adjusted odds ratios (ORs) or relative risks (RRs) were combined by using fixed-effects or random-effects model to calculate pooled risk estimates (REs). A total of 10 epidemiologic studies were included in this meta-analysis, including 8 case-control studies and 2 prospective cohort studies. Dietary soy intake was inversely associated with endometrial cancer risk with an overall RE of 0.81 (95% CI: 0.72, 0.91). In subgroup analyses, a statistically significant protective effect of soy intake was found for unfermented soy food (RE: 0.81, 95% CI: 0.67, 0.97), postmenopausal women (RE: 0.76, 95% CI: 0.61, 0.95), and Asian (RE: 0.79, 95% CI: 0.66, 0.95) and non-Asian population (RE: 0.83, 95% CI: 0.71, 0.96). Current evidence indicates that soy food intake is associated with lower endometrial cancer risk. Further larger cohort studies are warranted to fully clarify such an association.

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  • Authors+Show Affiliations

    ,

    From the No. 3 Office of Student Affairs, Chongqing Medical University, Chongqing, China (G-QZ); Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China (J-LC); China Effective Health Care Network, School of Public Health & Management, Chongqing Medical University, Chongqing, China (QL); and Department of Nutrition and Food Hygiene, School of Public Health and Management, Chongqing Medical University, Chongqing, China (YZ, HZ, YZ).

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    Source

    Medicine 94:50 2015 Dec pg e2281

    MeSH

    Diet
    Endometrial Neoplasms
    Female
    Humans
    Observational Studies as Topic
    Soy Foods

    Pub Type(s)

    Journal Article
    Meta-Analysis
    Research Support, Non-U.S. Gov't
    Review
    Systematic Review

    Language

    eng

    PubMed ID

    26683956

    Citation

    Zhang, Guo-Qiang, et al. "Soy Intake Is Associated With Lower Endometrial Cancer Risk: a Systematic Review and Meta-Analysis of Observational Studies." Medicine, vol. 94, no. 50, 2015, pp. e2281.
    Zhang GQ, Chen JL, Liu Q, et al. Soy Intake Is Associated With Lower Endometrial Cancer Risk: A Systematic Review and Meta-Analysis of Observational Studies. Medicine (Baltimore). 2015;94(50):e2281.
    Zhang, G. Q., Chen, J. L., Liu, Q., Zhang, Y., Zeng, H., & Zhao, Y. (2015). Soy Intake Is Associated With Lower Endometrial Cancer Risk: A Systematic Review and Meta-Analysis of Observational Studies. Medicine, 94(50), pp. e2281. doi:10.1097/MD.0000000000002281.
    Zhang GQ, et al. Soy Intake Is Associated With Lower Endometrial Cancer Risk: a Systematic Review and Meta-Analysis of Observational Studies. Medicine (Baltimore). 2015;94(50):e2281. PubMed PMID: 26683956.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Soy Intake Is Associated With Lower Endometrial Cancer Risk: A Systematic Review and Meta-Analysis of Observational Studies. AU - Zhang,Guo-Qiang, AU - Chen,Jin-Liang, AU - Liu,Qin, AU - Zhang,Yong, AU - Zeng,Huan, AU - Zhao,Yong, PY - 2015/12/20/entrez PY - 2015/12/20/pubmed PY - 2016/4/28/medline SP - e2281 EP - e2281 JF - Medicine JO - Medicine (Baltimore) VL - 94 IS - 50 N2 - Epidemiologic studies reporting the effect of soy intake on endometrial cancer risk conveyed conflicting results. We systematically reviewed the literature to investigate whether there was an inverse relation between dietary soy intake and endometrial cancer risk. PubMed, EMBASE, the Cochrane Library, and 4 main Chinese literature databases were searched from their inception to August 25, 2015 for both case-control studies and cohort studies that assessed the effect of soy intake on endometrial cancer risk. Study-specific most-adjusted odds ratios (ORs) or relative risks (RRs) were combined by using fixed-effects or random-effects model to calculate pooled risk estimates (REs). A total of 10 epidemiologic studies were included in this meta-analysis, including 8 case-control studies and 2 prospective cohort studies. Dietary soy intake was inversely associated with endometrial cancer risk with an overall RE of 0.81 (95% CI: 0.72, 0.91). In subgroup analyses, a statistically significant protective effect of soy intake was found for unfermented soy food (RE: 0.81, 95% CI: 0.67, 0.97), postmenopausal women (RE: 0.76, 95% CI: 0.61, 0.95), and Asian (RE: 0.79, 95% CI: 0.66, 0.95) and non-Asian population (RE: 0.83, 95% CI: 0.71, 0.96). Current evidence indicates that soy food intake is associated with lower endometrial cancer risk. Further larger cohort studies are warranted to fully clarify such an association. SN - 1536-5964 UR - https://www.unboundmedicine.com/medline/citation/26683956/full_citation L2 - http://Insights.ovid.com/pubmed?pmid=26683956 DB - PRIME DP - Unbound Medicine ER -