But is coffee better for reducing the risk? Your doctor better know the answer.
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 APOE ε4 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.
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