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. 2021 Dec 14;126(11):1717-1724.
doi: 10.1017/S0007114521000404. Epub 2021 Jan 29.

Consumption of flavonoid-rich fruits, flavonoids from fruits and stroke risk: a prospective cohort study

Qi Gao  1 , Jia-Yi Dong  1 , Renzhe Cui  1 , Isao Muraki  1 , Kazumasa Yamagishi  2 , Norie Sawada  3 , Hiroyasu Iso  1   2 , Shoichiro Tsugane  3 ; Japan Public Health Center-based Prospective Study Group
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Consumption of flavonoid-rich fruits, flavonoids from fruits and stroke risk: a prospective cohort study

Qi Gao et al. Br J Nutr. .

Abstract

We sought to examine the prospective associations of specific fruit consumption, in particular flavonoid-rich fruit (FRF) consumption, with the risk of stroke and subtypes of stroke in a Japanese population. A study followed a total of 39 843 men and 47 334 women aged 44-76 years, and free of CVD, diabetes and cancer at baseline since 1995 and 1998 to the end of 2009 and 2012, respectively. Data on total and specific FRF consumption for each participant were obtained using a self-administrated FFQ. The hazard ratios (HR) of stroke in relation to total and specific FRF consumption were estimated through Cox proportional hazards regression models. During a median follow-up of 13·1 years, 4091 incident stroke cases (2557 cerebral infarctions and 1516 haemorrhagic strokes) were documented. After adjustment for age, BMI, study area, lifestyles, dietary factors and other risk factors, it was found that total FRF consumption was associated with a significantly lower risk of stroke in women (HR = 0·70; 95 % CI 0·58, 0·84), while the association in men was not significant (HR = 0·93; 95 % CI 0·79, 1·09). As for specific FRF, consumptions of citrus fruits, strawberries and grapes were found associated with a lower stroke risk in women. Higher consumptions of FRF, in particular citrus fruits, strawberries and grapes, were associated with a lower risk of developing stroke in Japanese women.

Keywords: Cohort study; Flavonoid; Fruits; Incidence; Stroke.

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