Meta-Analysis of the Association between Tea Intake and the Risk of Cognitive Disorders.

ABSTRACT:

Background

Alzheimer's disease is a common neurodegenerative disorder in elderly. This study was aimed to systematically evaluate the association between tea intake and the risk of cognitive disorders by meta-analysis.

Methods and findings

PubMed, Embase and Wanfang databases were systematically searched and a total of 26 observational studies were included in this study. Odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) were calculated and pooled by using fixed or random effects models according to the degree of heterogeneity.

Results

The overall pooled analysis indicated that tea intake could significantly reduce the risk of cognitive disorders (OR = 0.65, 95%CI = 0.58-0.73). Subgroup analyses were conducted based on study design, population, fr

SUBMITTER: Ma QP 

PROVIDER: S-EPMC5100989 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature