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Tea consumption and risk of endometrial cancer: a metaanalysis.

Abstract

OBJECTIVE

The objective of the study was to assess the association between tea consumption and endometrial cancer.

STUDY DESIGN

Studies were identified by searching PubMed and EMBASE databases and screening the references of retrieved articles. The summary relative risk (RR) with 95% confidence interval (CI) was calculated.

RESULTS

The combined RR for ever drinkers vs non/lowest drinkers was 0.85 (95% CI, 0.77-0.94). Compared with non/lowest drinkers, the summary RR was 0.88 (95% CI, 0.78-0.98) for low to moderate drinkers and 0.75 (95% CI, 0.64-0.88) for high drinkers. An increase in tea intake of 2 cups/day was associated with a 25% decreased risk of endometrial cancer. In subgroup analyses, tea consumption was significantly associated with reduced endometrial cancer risk in Asian studies and studies using interviewing techniques. Furthermore, the protective effect of green tea on endometrial cancer seemed more evident than that of black tea.

CONCLUSION

Findings from this metaanalysis suggest that tea consumption may reduce the risk of endometrial cancer. Because of the limited number of studies, further prospective studies are needed to explore the protective effect of tea on endometrial cancer.

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  • Authors+Show Affiliations

    ,

    National Shanghai Center for New Drug Safety Evaluation and Research, Shanghai Institute of Pharmaceutical Industry, Pudong, Shanghai, China. naping.tang@gmail.com

    , , ,

    Source

    MeSH

    Beverages
    Case-Control Studies
    Cohort Studies
    Endometrial Neoplasms
    Female
    Humans
    Risk Factors
    Tea

    Pub Type(s)

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

    Language

    eng

    PubMed ID

    19766982

    Citation

    Tang, Na-Ping, et al. "Tea Consumption and Risk of Endometrial Cancer: a Metaanalysis." American Journal of Obstetrics and Gynecology, vol. 201, no. 6, 2009, pp. 605.e1-8.
    Tang NP, Li H, Qiu YL, et al. Tea consumption and risk of endometrial cancer: a metaanalysis. Am J Obstet Gynecol. 2009;201(6):605.e1-8.
    Tang, N. P., Li, H., Qiu, Y. L., Zhou, G. M., & Ma, J. (2009). Tea consumption and risk of endometrial cancer: a metaanalysis. American Journal of Obstetrics and Gynecology, 201(6), pp. 605.e1-8. doi:10.1016/j.ajog.2009.07.030.
    Tang NP, et al. Tea Consumption and Risk of Endometrial Cancer: a Metaanalysis. Am J Obstet Gynecol. 2009;201(6):605.e1-8. PubMed PMID: 19766982.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Tea consumption and risk of endometrial cancer: a metaanalysis. AU - Tang,Na-Ping, AU - Li,Hua, AU - Qiu,Yun-Liang, AU - Zhou,Guo-Min, AU - Ma,Jing, Y1 - 2009/09/20/ PY - 2009/02/26/received PY - 2009/05/12/revised PY - 2009/07/14/accepted PY - 2009/9/22/entrez PY - 2009/9/22/pubmed PY - 2009/12/23/medline SP - 605.e1 EP - 8 JF - American journal of obstetrics and gynecology JO - Am. J. Obstet. Gynecol. VL - 201 IS - 6 N2 - OBJECTIVE: The objective of the study was to assess the association between tea consumption and endometrial cancer. STUDY DESIGN: Studies were identified by searching PubMed and EMBASE databases and screening the references of retrieved articles. The summary relative risk (RR) with 95% confidence interval (CI) was calculated. RESULTS: The combined RR for ever drinkers vs non/lowest drinkers was 0.85 (95% CI, 0.77-0.94). Compared with non/lowest drinkers, the summary RR was 0.88 (95% CI, 0.78-0.98) for low to moderate drinkers and 0.75 (95% CI, 0.64-0.88) for high drinkers. An increase in tea intake of 2 cups/day was associated with a 25% decreased risk of endometrial cancer. In subgroup analyses, tea consumption was significantly associated with reduced endometrial cancer risk in Asian studies and studies using interviewing techniques. Furthermore, the protective effect of green tea on endometrial cancer seemed more evident than that of black tea. CONCLUSION: Findings from this metaanalysis suggest that tea consumption may reduce the risk of endometrial cancer. Because of the limited number of studies, further prospective studies are needed to explore the protective effect of tea on endometrial cancer. SN - 1097-6868 UR - https://www.unboundmedicine.com/medline/citation/19766982/Tea_consumption_and_risk_of_endometrial_cancer:_a_metaanalysis_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0002-9378(09)00817-5 DB - PRIME DP - Unbound Medicine ER -