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Biomarker and dietary validation of a Canadian food frequency questionnaire to measure eicosapentaenoic and docosahexaenoic acid intakes from whole food, functional food, and nutraceutical sources.
J Acad Nutr Diet 2012; 112(7):1005-14JA

Abstract

BACKGROUND

Canadian dietary sources of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) include marine and non-marine whole foods, functional foods, and nutraceuticals.

OBJECTIVE/DESIGN

In the present study, these sources were incorporated into a nutrient-specific, semi-quantitative food frequency questionnaire (FFQ) and the ability to measure the EPA and DHA intakes of Canadian adults was assessed. Specifically, the EPA and DHA intakes estimated by FFQ of 78 men and women, 20 to 60 years of age, were compared with EPA and DHA measurements from 3-day food records and measures of EPA and DHA in fasting whole blood.

RESULTS

Mean (±standard deviation) and median intakes of EPA+DHA were 0.34±0.34 and 0.21 g/day by FFQ and 0.47±0.71 and 0.13 g/day by food record, with no significant differences between mean intakes (P=0.93). The FFQ provided higher estimates than the food record at low intakes of EPA and DHA and lower estimates at high intakes based on Bland-Altman plots. The FFQ was moderately correlated with food record (r=0.31 to 0.49) and with blood biomarker measures of EPA and DHA (r=0.31 to 0.51). Agreement analysis revealed that 42% of participants were classified in the same and 77% into same or adjacent quartile when EPA and DHA intake was assessed by food record and by FFQ. Similar quartile agreement was found for EPA and DHA intakes by FFQ with blood biomarker EPA and DHA. The range of the validity coefficients, calculated using the method of triads, was 0.43 to 0.71 for FFQ measurement of EPA+DHA.

CONCLUSIONS

The FFQ is an adequate tool for estimating usual EPA and DHA intakes and ranking Canadian adults by their intakes.

Authors+Show Affiliations

Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Validation Studies

Language

eng

PubMed ID

22583924

Citation

Patterson, Ashley C., et al. "Biomarker and Dietary Validation of a Canadian Food Frequency Questionnaire to Measure Eicosapentaenoic and Docosahexaenoic Acid Intakes From Whole Food, Functional Food, and Nutraceutical Sources." Journal of the Academy of Nutrition and Dietetics, vol. 112, no. 7, 2012, pp. 1005-14.
Patterson AC, Hogg RC, Kishi DM, et al. Biomarker and dietary validation of a Canadian food frequency questionnaire to measure eicosapentaenoic and docosahexaenoic acid intakes from whole food, functional food, and nutraceutical sources. J Acad Nutr Diet. 2012;112(7):1005-14.
Patterson, A. C., Hogg, R. C., Kishi, D. M., & Stark, K. D. (2012). Biomarker and dietary validation of a Canadian food frequency questionnaire to measure eicosapentaenoic and docosahexaenoic acid intakes from whole food, functional food, and nutraceutical sources. Journal of the Academy of Nutrition and Dietetics, 112(7), pp. 1005-14. doi:10.1016/j.jand.2012.03.030.
Patterson AC, et al. Biomarker and Dietary Validation of a Canadian Food Frequency Questionnaire to Measure Eicosapentaenoic and Docosahexaenoic Acid Intakes From Whole Food, Functional Food, and Nutraceutical Sources. J Acad Nutr Diet. 2012;112(7):1005-14. PubMed PMID: 22583924.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biomarker and dietary validation of a Canadian food frequency questionnaire to measure eicosapentaenoic and docosahexaenoic acid intakes from whole food, functional food, and nutraceutical sources. AU - Patterson,Ashley C, AU - Hogg,Ryan C, AU - Kishi,Diane M, AU - Stark,Ken D, Y1 - 2012/05/12/ PY - 2011/12/05/received PY - 2012/03/23/accepted PY - 2012/5/16/entrez PY - 2012/5/16/pubmed PY - 2012/10/18/medline SP - 1005 EP - 14 JF - Journal of the Academy of Nutrition and Dietetics JO - J Acad Nutr Diet VL - 112 IS - 7 N2 - BACKGROUND: Canadian dietary sources of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) include marine and non-marine whole foods, functional foods, and nutraceuticals. OBJECTIVE/DESIGN: In the present study, these sources were incorporated into a nutrient-specific, semi-quantitative food frequency questionnaire (FFQ) and the ability to measure the EPA and DHA intakes of Canadian adults was assessed. Specifically, the EPA and DHA intakes estimated by FFQ of 78 men and women, 20 to 60 years of age, were compared with EPA and DHA measurements from 3-day food records and measures of EPA and DHA in fasting whole blood. RESULTS: Mean (±standard deviation) and median intakes of EPA+DHA were 0.34±0.34 and 0.21 g/day by FFQ and 0.47±0.71 and 0.13 g/day by food record, with no significant differences between mean intakes (P=0.93). The FFQ provided higher estimates than the food record at low intakes of EPA and DHA and lower estimates at high intakes based on Bland-Altman plots. The FFQ was moderately correlated with food record (r=0.31 to 0.49) and with blood biomarker measures of EPA and DHA (r=0.31 to 0.51). Agreement analysis revealed that 42% of participants were classified in the same and 77% into same or adjacent quartile when EPA and DHA intake was assessed by food record and by FFQ. Similar quartile agreement was found for EPA and DHA intakes by FFQ with blood biomarker EPA and DHA. The range of the validity coefficients, calculated using the method of triads, was 0.43 to 0.71 for FFQ measurement of EPA+DHA. CONCLUSIONS: The FFQ is an adequate tool for estimating usual EPA and DHA intakes and ranking Canadian adults by their intakes. SN - 2212-2672 UR - https://www.unboundmedicine.com/medline/citation/22583924/Biomarker_and_dietary_validation_of_a_Canadian_food_frequency_questionnaire_to_measure_eicosapentaenoic_and_docosahexaenoic_acid_intakes_from_whole_food_functional_food_and_nutraceutical_sources_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S2212-2672(12)00465-0 DB - PRIME DP - Unbound Medicine ER -