Objective-To assess the influence of a specific dietary pattern on overall survival.Design-Cohort study. Setting-Three rural Greek villages, the data from which were collected as part of an international cross cultural study offood habits in later life.
These data indicate that the semi-quantitative FFQ is reproducible and provides a reasonably reliable measure of intake. Significant correlations between diet and an independent biochemical marker further corroborate the relative validity of our questionnaire in this Greek population.
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