Validity of a food-frequency questionnaire for a large prospective cohort study in Bangladesh.

@article{Chen2004ValidityOA,
  title={Validity of a food-frequency questionnaire for a large prospective cohort study in Bangladesh.},
  author={Yu Chen and Habibul Ahsan and Faruque Parvez and Geoffrey R. Howe},
  journal={The British journal of nutrition},
  year={2004},
  volume={92 5},
  pages={
          851-9
        }
}
We have developed a thirty-nine-item semi-quantitative food-frequency questionnaire (FFQ) to assess the dietary consumption of 11,746 men and women in a prospective cohort study that evaluates the health effects of As from drinking water in Bangladesh. In order to validate the FFQ, two 7 d food diaries (FD) were completed for 189 randomly selected cohort participants in two different seasons of the year. Nutrient values were converted based on both the United States Department of Agriculture's… CONTINUE READING
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