Validation study of fatty acid consumption assessed with a short food frequency questionnaire against plasma concentration in middle-aged Japanese people

  • Chiho Goto
  • Yuko Tokudome
  • Nahomi Imaeda
  • Kiyoshi Takekuma
  • Kiyonori Kuriki
  • Fukoyo Igarashi
  • Masato Ikeda
  • Shinkan Tokudome

Abstract

Objective: To assess the relative validity of data for consumption of fatty acids (FAs) measured with a short food frequency questionnaire (FFQ) in comparison with plasma concentration of FAs. Design: In this cross-sectional study, completed FFQs were secured from 177 (92 male and 85 female) employees working for a company in August 2001. Intake of FAs was assessed with the FFQ, and the values were validated against FA concentration in plasma in overnight-fasting blood. Results: Mean9/SD daily intakes of total fatty acids (TFAs) were 44.49/8.0 g day-1 for men and 42.99/7.2 g day-1 for women. Plasma concentration of TFAs were 12.739/3.78 mmol l-1 for men and 10.549/1.75 mmol l-1 for women. Spearman’s rank correlation coefficients, unadjusted and energy-adjusted by the energy-density method and residual method, for n-3 highly unsaturated fatty acids (HUFAs) were 0.37 (p<0.001), 0.38 (p<0.001) and 0.40 (p<0.001) for men, and 0.41 (p<0.001), 0.26 (p<0 .01) and 0.29 (p<0.01) for women, respectively. Conclusions: Relative validity values of data for intake of n-3 polyunsaturated fatty acids (PUFAs) for women and n-3 HUFAs in both genders, assessed with the FFQ compared with FA concentration in plasma, were moderate, but no significant associations were found for saturated fatty acids, monounsaturated fatty acids or n-6 PUFAs. Keywords: fatty acids; food frequency questionnaire; plasma concentration; relative validity

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Published
2006-06-01
How to Cite
Goto, C., Tokudome, Y., Imaeda, N., Takekuma, K., Kuriki, K., Igarashi, F., Ikeda, M., & Tokudome, S. (2006). Validation study of fatty acid consumption assessed with a short food frequency questionnaire against plasma concentration in middle-aged Japanese people. Food & Nutrition Research, 77-82. https://doi.org/10.3402/fnr.v50i2.1562