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Abstract Title:

Tea Consumption Reduces the Incidence of Neurocognitive Disorders: Findings from the Singapore Longitudinal Aging Study.

Abstract Source:

J Nutr Health Aging. 2016 ;20(10):1002-1009. PMID: 27925140

Abstract Author(s):

L Feng, M-S Chong, W-S Lim, Q Gao, M S Nyunt, T-S Lee, S L Collinson, T Tsoi, E-H Kua, T-P Ng

Article Affiliation:

L Feng

Abstract:

OBJECTIVES: To examine the relationships between tea consumption habits and incident neurocognitive disorders (NCD) and explore potential effect modification by gender and the apolipoprotein E (APOE) genotype.

DESIGN: Population-based longitudinal study.

SETTING: The Singapore Longitudinal Aging Study (SLAS).

PARTICIPANTS: 957 community-living Chinese elderly who were cognitively intact at baseline.

MEASUREMENTS: We collected tea consumption information at baseline from 2003 to 2005 and ascertained incident cases of neurocognitive disorders (NCD) from 2006 to 2010. Odds ratio (OR) of association were calculated in logistic regression models that adjusted for potential confounders.

RESULTS: A total of 72 incident NCD cases were identified from the cohort. Tea intake was associated with lower risk of incident NCD, independent of other risk factors. Reduced NCD risk was observed for both green tea (OR=0.43) and black/oolong tea (OR=0.53) and appeared to be influenced by the changing of tea consumption habit at follow-up. Using consistent non-tea consumers as the reference, only consistent tea consumers had reduced risk of NCD (OR=0.39). Stratified analyses indicated that tea consumption was associated with reduced risk of NCD among females (OR=0.32) and APOEε4 carriers (OR=0.14) but not males and non APOE ε4 carriers.

CONCLUSION: Regular tea consumption was associated with lower risk of neurocognitive disorders among Chinese elderly. Gender and genetic factors could possibly modulate this association.

Study Type : Human Study

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Sayer Ji
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