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KMID : 1239920230170040747
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Nutrition Research and Practice
2023 Volume.17 No. 4 p.747 ~ p.761
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Development of a semi-quantitative food frequency questionnaire for dietary intake of elementary school children: data from the Seventh Korea National Health and Nutrition Examination Survey
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Jung Min-Ji
Ha Eun-Hee
Kwon O-Ran
Kim Hye-Sook
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Abstract
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BACKGROUND/OBJECTIVES : In Korea, studies of diet in elementary school children are hindered by the need for a comprehensive dietary assessment tool. Thus, the aim of this study was to develop a semi-quantitative food frequency questionnaire (FFQ) for Korean elementary school children.
SUBJECTS/METHODS : The 24-h recall data for 1,624 subjects aged 6?11 yrs from the seventh Korea National Health and Nutrition Examination Survey were used to extract the items included in the questionnaire. The FFQ items were developed by selecting major dishes based on the results of nutritional contribution and between-person variability for energy and 14 nutrients (carbohydrate, protein, fat, crude fiber, calcium, phosphorous, iron, sodium, potassium, vitamin A, thiamin, riboflavin, niacin, and vitamin C). We selected the major dishes with over 90% of the total contribution to each nutrient and with over 90% of the accumulated R2 for each nutrient. Among the 452 dishes, we selected 248 dishes contributing more than 1% of the total consumption.
RESULTS : Finally, the FFQ included 107 items combined from 248 dishes based on nutrient profile and recipe. The FFQ items accounted for an average of 88.6% of the energy, 14 nutrient intakes, and 91.4% of the between-person variability. Quantities of dietary intake were assessed by 9 categories of frequency and 3 categories of portion size. Percentages of coverage for energy, protein, fat, carbohydrate, and calcium were 90.2%, 87.8%, 89.9%, 90.8%, and 88.7%, respectively.
CONCLUSIONS : We developed a dish-based, semi-quantitative FFQ comprising 107 items for Korean elementary school children aged 6 to 11. Further studies are needed to evaluate the reproducibility and validity of this FFQ for elementary school children.
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KEYWORD
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Nutrition assessment, methodological study, questionnaire design, child
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