간이 지방산 섭취빈도 조사지의 개발 및 타당도 검증

Abstract

This study was conducted to develop and validate a short food frequency questionnaire (S-FFQ) to assess fatty acids intake. The fatty acid S-FFQ consisted of 26 food items selected based on information from the 2013∼2014 Korean Health and Nutrition Examination survey. A total of 100 subjects completed a fatty acid S-FFQ and 3-day diet record as a reference. Additionally, the plasma fatty acid levels of 40 subjects were determined using gas chromatography mass spectrometer. The age-adjusted correlation coefficient between S-FFQ and 3-day diet records was 0.39 (p<0.001) for eicosapentaenoic acid (EPA) and 0.37 (p<0.001) for docosahexaenoic acid (DHA). The significant correlations between the S-FFQ and plasma fatty acids were found for EPA (r=0.45; p=0.004) and DHA (r=0.39; p=0.015). More than 64% of the subjects were classified into the same or adjacent quartiles between two dietary methods. Our findings suggest that the fatty acid S-FFQ seems to be useful for estimating fatty acids intake, particularly n-3 fatty acids in middle-aged and elderly women in Korea.