Nut consumption and risk of stroke
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Nut consumption has been inconsistently associated with risk of stroke. Our aim was to carry out a meta-analysis of prospective studies to assess the relation between nut consumption and stroke risk and mortality. Pertinent studies were identified by a search of PubMed and Embase through June 2014 and by reviewing the references of retrieved articles. Prospective cohort studies that reported relative risks (RRs) with 95 % confidence intervals (CIs) for the association between nut consumption and risk of stroke were included. Six articles including nine independent prospective cohorts with 476,181 participants were included in the meta-analysis. The pooled RR of stroke was 0.90 (95 % CI 0.83–0.98) comparing the highest with the lowest nut consumption. Stratifying by gender, significant inverse association was observed for females (RR 0.88; 95 % CI 0.78–0.98). Sensitivity analysis restricted to studies with adjustment for common confounding factors showed similar results, strengthening the association between nut consumption and stroke risk. Moreover, we observed a trend toward an inverse association between higher nut consumption and stroke mortality (RR 0.86; 95 % CI 0.69–1.06), although it is not significant. Current evidence indicated that nut consumption is inversely associated with risk of stroke.
KeywordsNut Stroke Prospective studies
Conflict of interest
The authors declare that they have no conflict of interest.
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