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Validity and reproducibility of a food frequency questionnaire to assess dietary nutrients for prevention and management of metabolic syndrome in Korea

Authors
Bae, Yun-JungChoi, Hae-YeonSung, Mi-KyungKim, Mi-KyungChoi, Mi-Kyeong
Issue Date
Apr-2010
Publisher
KOREAN NUTRITION SOC
Keywords
Metabolic syndrome; food frequency questionnaire; Korean adults; validity; reproducibility
Citation
NUTRITION RESEARCH AND PRACTICE, v.4, no.2, pp.121 - 127
Journal Title
NUTRITION RESEARCH AND PRACTICE
Volume
4
Number
2
Start Page
121
End Page
127
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/13227
DOI
10.4162/nrp.2010.4.2.121
ISSN
1976-1457
Abstract
Little data exists on metabolic syndrome (MetS) related with intake, especially for the South Korean. The purpose of this study was to develop and evaluate a food frequency questionnaire (FFQ) for nutritional assessment in the population with MetS in South Korea. Randomly selected female participants, mean age 21.9 years (n = 38) were invited to answer the FFQ twice (FFQ1 and FFQ2) over a nine-month interval and to complete twelve-day diet records (DR) during the months between in South Korea. The correlation coefficients for nutrient intake between FFQ1 and FFQ2 varied from 0.253 (niacin) to 0.573 (cholesterol), and the energy intake-adjusted correlation coefficients ranged from 0.187 for protein to 0.662 for iron. The energy intake-adjusted and de-attenuated correlation coefficients for comparison of FFQ1 and the DRs ranged between 0.277 (vitamin B-1) and 0.768 (fiber), and between 0.229 (zinc) and 0.859 (fat) for comparison of DRs with FFQ2. The percentages of study subjects classified into the same quartiles in both the DRs and FFQ1 ranged from 15.8% (vitamin B-6) to 47.4% (calcium), and for the same quartiles in DRs and FFQ2 from 13.2% (vitamin B-1) to 44.7% (potassium). The FFQ has reasonably good validity and reproducibility. Further research is needed for an assessment of reproducibility and validation of present FFQ in the subjects with MetS.
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