Evaluation reveals good agreement for nutrient intakes in Japanese children, indicating potential for dietary monitoring.
Key Points
The diet history questionnaire shows good reliability for estimating nutrient intake in children and adolescents, demonstrating less than 10% median difference with dietary records.
Spearman’s correlation coefficients indicate moderate agreement, with values reaching 0.36 for food groups and 0.33 for nutrients in boys.
This observational analysis involved 432 boys and 412 girls across 32 prefectures, assessing dietary habits over four seasons with two days of weighed records.
While useful for group-level dietary assessments, caution is needed for individual intake ranking due to variability in the data.