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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
- Validity and reproducibility of a food frequency questionnaire to assess dietary nutrients for prevention and management of metabolic syndrome in Korea
- Bae, Yun-Jung; Choi, Hae-Yeon; Sung, Mi-Kyung; Kim, Mi-Kyung; Choi, Mi-Kyeong
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- NUTRITION RESEARCH AND PRACTICE
- vol. 4, no. 2, pp. 121 - 127
- Metabolic syndrome; food frequency questionnaire; Korean adults; validity; reproducibility
- KOREAN NUTRITION SOC
- SCIE; SCOPUS; KCI
- 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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