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Food Frequency Questionnaire for Chinese Children Aged 12-17 Years: Validity and Reliability

Dan Liu1, La Hong Ju1, Zhen Yu Yang1

  • 1National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.

Biomedical and Environmental Sciences : BES
|July 24, 2019
PubMed

Insights

This study validated a food frequency questionnaire (FFQ) for Chinese children, finding it reliable for assessing dietary intake. The FFQ is a useful tool for nutritional research in this population.

Area of Science:

  • Nutritional epidemiology
  • Pediatric nutrition
  • Dietary assessment methods

Background:

  • Accurate dietary assessment is crucial for understanding child nutrition.
  • Food Frequency Questionnaires (FFQs) are common tools, but their validity and reliability need evaluation in specific populations.
  • Chinese children aged 12-17 years require validated dietary assessment tools for research and public health initiatives.

Purpose of the Study:

  • To evaluate the validity and reliability of a semi-quantitative 72-food item Food Frequency Questionnaire (FFQ) specifically designed for Chinese children aged 12-17 years.
  • To compare FFQ results against 24-hour dietary recalls (24 h DRs) for assessing food and nutrient consumption.
  • To establish the reproducibility and relative validity of the FFQ in this pediatric demographic.

Main Methods:

  • A semi-quantitative FFQ with 72 food items was administered twice to 160 Chinese children (aged 12-17 years) over one month.
  • Three 24-hour dietary recalls (24 h DRs) were used as a reference method.
  • Reliability was assessed using intraclass correlation coefficients (ICCs) and quartile agreement.
  • Validity was examined through quartile agreement, Bland-Altman plots, and correlation analyses with 24 h DRs.

Main Results:

  • Reliability analysis showed ICCs ranging from 0.21 to 0.76 and quartile agreement between 70.0% and 95.0% for foods and nutrients.
  • Spearman's correlation coefficients between the FFQ and 24 h DRs ranged from -0.04 to 0.59.
  • Bland-Altman plots indicated good agreement for nutrient intakes, with quartile agreement between 50.0% and 100.0% and minimal misclassification.

Conclusions:

  • The developed FFQ demonstrates acceptable relative validity for assessing dietary intakes in Chinese children aged 12-17 years.
  • The FFQ exhibits high reproducibility, making it a reliable tool for nutritional studies in this age group.
  • This validated FFQ can be effectively utilized for epidemiological research on diet and health in Chinese children.
Abstract

Keywords:
Chinese childrenFood frequency questionnaireReliabilityValidity

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