Content validity and reliability of a food frequency questionnaire to measure eicosapentaenoic acid and docosahexaenoic acid intakes in young adults: a pilot study
dc.citation.doi | 10.31989/ffhd.v2i12.77 | |
dc.citation.epage | 507 | en_US |
dc.citation.issue | 12 | en_US |
dc.citation.jtitle | Functional Foods in Health and Disease | en_US |
dc.citation.spage | 501 | en_US |
dc.citation.volume | 2 | en_US |
dc.contributor.author | Hanson, Jennifer Ann | |
dc.contributor.author | Rosenkranz, Richard R. | |
dc.contributor.author | Holcomb, Carol Ann | |
dc.contributor.author | Haub, Mark D. | |
dc.contributor.authoreid | ricardo | en_US |
dc.contributor.authoreid | carolann | en_US |
dc.contributor.authoreid | haub | en_US |
dc.date.accessioned | 2013-01-16T14:49:52Z | |
dc.date.available | 2013-01-16T14:49:52Z | |
dc.date.issued | 2012 | |
dc.date.published | 2012 | en_US |
dc.description.abstract | Background: The food environment is rapidly changing with regard to omega-3 fatty acids. Research is hindered by the lack of a tool specifically designed to measure intakes of long-chain omega-3 fatty acids in US populations. The purpose of this pilot study was to assess the content validity and reliability of a novel 14-item food frequency questionnaire (FFQ) designed to measure contemporary sources of eicosapentaenoic aid (EPA) and docosahexaenoic acid (DHA). Methods: During May of 2009, college students (n = 165) completed the FFQ and provided feedback. Forty-five completed the questionnaire a second time allowing for the evaluation of test-retest reliability. Results: None of the students reported consuming a food naturally rich in EPA and DHA that was not included in the FFQ. Overall instrument reliability (n = 54) was strong (ρ = 0.86, p < 0.001) and the reliability for each of the non-functional food items ranged from moderate to strong (ρ = 0.48 to 0.86, p < 0.001). Correlation coefficients for each of the functional food items were low and/or non-significant. Uncertainty regarding omega-3 functional foods was listed as a reason by eight of the twelve who felt one or more of the questions were difficult to answer. Conclusions: Overall instrument reliability was strong and content validity was good. Nonetheless, participant feedback, and the decreased test-retest coefficients for the omega-3 functional foods, suggests unfamiliarity may be problematic when measuring intakes from these food sources. | en_US |
dc.identifier.uri | http://hdl.handle.net/2097/15210 | |
dc.language.iso | en_US | en_US |
dc.relation.uri | https://doi.org/10.31989/ffhd.v2i12.77 | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject | Functional foods | en_US |
dc.subject | n-3 fatty acids | en_US |
dc.subject | Dietary assessment | en_US |
dc.subject | Seafood | en_US |
dc.subject | Eicosapentaenoic acid | en_US |
dc.subject | Docosahexaenoic acid | en_US |
dc.title | Content validity and reliability of a food frequency questionnaire to measure eicosapentaenoic acid and docosahexaenoic acid intakes in young adults: a pilot study | en_US |
dc.type | Text | en_US |