Dataset Information


Tea consumption and risk of type 2 diabetes: a meta-analysis of cohort studies.

ABSTRACT: BACKGROUND: Tea consumption has been extensively studied in relation to various diseases, several epidemiologic studies have been performed to investigate the association of tea consumption with type 2 diabetes; however, the results of these studies were not entirely consistent. OBJECTIVE: To conduct a meta-analysis of studies that assessed the association of tea consumption and the risk of type 2 diabetes. RESEARCH DESIGN AND METHODS: We performed a systematic literature search through November 2008 in PUBMED, MEDLINE, EMBASE, and Cochrane Database of Systematic Reviews. The search was limited to English-language studies. Studies were excluded if they were type 1 diabetes, animal studies. Nine cohort studies were identified by two authors, and summary relative risks (RRs) were calculated using a random-effects model. RESULTS: We identified nine cohort studies, including 324,141 participants and 11,400 incident cases of type 2 diabetes with follow-up ranging from 5 to 18 years. The summary adjusted RR did not show that tea consumption was associated with a reduced type 2 diabetes risk (RR, 0.96; 95% confidence interval (CI), 0.92-1.01). Evidence from the results of our stratified analyses revealed that tea consumption > or =4 cups per day (RR, 0.8; 95% CI, 0.7-0.93) might play a role in the prevention of type 2 diabetes. However, no statistically significant association was observed for sex and the follow-up durations stratified between tea consumption and type 2 diabetes. CONCLUSIONS: This meta-analysis indicates that tea consumption > or =4 cups per day may lower the risk of type 2 diabetes.

PROVIDER: S-EPMC2669862 | BioStudies | 2009-01-01

REPOSITORIES: biostudies

Similar Datasets

1000-01-01 | S-EPMC4120344 | BioStudies
2015-01-01 | S-EPMC4272679 | BioStudies
1000-01-01 | S-EPMC4004325 | BioStudies
2014-01-01 | S-EPMC4115458 | BioStudies
1000-01-01 | S-EPMC3898757 | BioStudies
2011-01-01 | S-EPMC3012180 | BioStudies
2015-01-01 | S-EPMC4567322 | BioStudies
1000-01-01 | S-EPMC3130641 | BioStudies
2020-01-01 | S-EPMC7283004 | BioStudies
2013-01-01 | S-EPMC3537715 | BioStudies