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Related Experiment Videos

Food frequency questionnaire and a screening test.

Y Tsubono1, K Ogawa, Y Watanabe

  • 1Division of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan. ytsubono@metamedica.com

Nutrition and Cancer
|October 9, 2001
PubMed
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This study validated a food frequency questionnaire for screening cancer-associated nutrient intake. The questionnaire demonstrated good reproducibility and accuracy for detecting high/low consumers of key nutrients.

Area of Science:

  • Nutritional Epidemiology
  • Dietary Assessment
  • Cancer Prevention Research

Background:

  • Accurate dietary assessment is crucial for understanding nutrient-cancer relationships.
  • Food frequency questionnaires (FFQs) are common tools for large-scale dietary studies.
  • Validating FFQs for specific populations and nutrient targets is essential.

Purpose of the Study:

  • To evaluate the accuracy and reproducibility of a 141-item FFQ.
  • To assess its utility as a screening tool for nutrient intake related to cancer risk.
  • To compare its performance against detailed diet records.

Main Methods:

  • A 141-item FFQ was administered twice to 113 participants (55 men, 58 women) in Japan.
  • Dietary intake was assessed using four 3-day diet records over one year.

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  • Pearson correlation coefficients, sensitivity, and specificity were calculated.

    • Main Results:

    • FFQ reproducibility between two administrations was high (median r=0.68).
    • Correlation with diet records showed moderate to strong agreement (median r=0.43).
    • The FFQ demonstrated high sensitivity and specificity for detecting high-alcohol and high-fat consumers.

    Conclusions:

    • The FFQ is a reproducible and valid screening tool for specific cancer-related nutrients.
    • It performs comparably to 3-day diet records for screening purposes.
    • Useful for identifying individuals for dietary intervention trials or counseling.