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Green tea and liver cancer risk: A meta-analysis of prospective cohort studies in Asian populations.
- Source :
-
Nutrition (Burbank, Los Angeles County, Calif.) [Nutrition] 2016 Jan; Vol. 32 (1), pp. 3-8. Date of Electronic Publication: 2015 Jul 02. - Publication Year :
- 2016
-
Abstract
- Objectives: The aim of this meta-analysis was to investigate whether an association existed between green tea consumption and the risk for liver cancer in prospective cohort studies in Asian populations.<br />Methods: Relevant studies were identified by searching PubMed, EMBASE, ISI Web of Science, and the Chinese Bio-medicine Database published before April 2015. Study-specific risk estimates for the highest versus non- or lowest and increment of daily cup of green tea consumption levels were combined based on fixed- or random-effects models. STATA 11.0 (Stata Corporation, College Station, TX, USA) software was used for statistical analysis.<br />Results: Nine prospective cohort articles involving 465,274 participants and 3694 cases of liver cancer from China, Japan, and Singapore were included. The summary relative risk (RR) indicated a significant association between the highest green tea consumption and reduced risk for liver cancer (summary RR, 0.88; 95% confidence interval [CI], 0.81-0.97). However, no statistically significant association was observed when analyzing daily consumption of one cup (summary RR, 0.97; 95% CI, 0.95-1.00). When stratified by sex, the protective effect of green tea consumption on risk for liver cancer was observed only in the group of women (summary RR, 0.78; 95% CI, 0.64-0.96), but not in men (summary RR, 0.89; 95% CI, 0.79-1.00).<br />Conclusions: The present analysis indicated the preventive effects of green tea intake on the risk for liver cancer in female Asian populations. However, additional studies are needed to make a convincing case for this association.<br /> (Copyright © 2016 Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1873-1244
- Volume :
- 32
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Nutrition (Burbank, Los Angeles County, Calif.)
- Publication Type :
- Academic Journal
- Accession number :
- 26412579
- Full Text :
- https://doi.org/10.1016/j.nut.2015.05.021