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Association between Polyphenol Intake and Hypertension in Adults and Older Adults: A Population-Based Study in Brazil.

Association between Polyphenol Intake and Hypertension in Adults and Older Adults: A Population-Based Study in Brazil.
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Miranda AM, Steluti J, Fisberg RM, Marchioni DM,


Miranda AM, Steluti J, Fisberg RM, Marchioni DM, (click to view)

Miranda AM, Steluti J, Fisberg RM, Marchioni DM,

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PloS one 2016 Oct 2811(10) e0165791 doi 10.1371/journal.pone.0165791
Abstract
BACKGROUND/OBJECTIVE
Hypertension is an important risk factor for cardiovascular disease, and diet has been identified as a modifiable factor for preventing and controlling hypertension. Besides, epidemiological studies have suggested an inverse association between polyphenol intake and cardiovascular diseases. The aim of this study was to evaluate the association between the intake of polyphenols and hypertension in a general population of Sao Paulo.

METHODS
Data came from the ‘Health Survey of Sao Paulo (ISA-Capital)’ among 550 adults and older adults in Sao Paulo, Brazil. Diet was assessed by two 24-hour dietary recalls (24HR). Usual intakes were calculated using the Multiple Source Method. Polyphenol intake was calculated by matching food consumption data from the 24HR with the Phenol-Explorer database. The associations between the hypertension and tertiles of the total and classes of polyphenols intake were tested by multivariate logistic regression analysis.

RESULTS
After multivariate adjustment for potential confounding factors the findings showed an inverse and linearly association between the hypertension and highest tertiles of tyrosols (OR = 0.33; 95%CI 0.18, 0.64), alkylphenols (OR = 0.45; 95%CI 0.23, 0.87), lignans (OR = 0.49; 95%CI 0.25, 0.98), as well as stilbenes (OR = 0.60; 95%CI 0.36, 0.98), and other polyphenols (OR = 0.33; 95%CI 0.14, 0.74). However, total polyphenol intake, and phenolic acids were significantly associated only in the middle tertile with hypertension and flavonoids were not significant associated.

CONCLUSION
There is an inverse and linearly association between the highest tertile of some classes of polyphenols, such as, tyrosols, alkylphenols, lignans, stilbenes, other polyphenols and hypertension.

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