Preliminary Validation of a Food Frequency Questionnaire to Assess Long-Chain Omega-3 Fatty Acid Intake in Eye Care Practice

Autor: Laura E Downie, Alexis Ceecee Zhang
Jazyk: angličtina
Rok vydání: 2019
Předmět:
0301 basic medicine
Adult
Male
Eye Diseases
Victoria
Cross-sectional study
food frequency questionnaire
eye disease
lcsh:TX341-641
Eye care
Article
03 medical and health sciences
chemistry.chemical_compound
dry eye
0302 clinical medicine
Environmental health
Surveys and Questionnaires
Fatty Acids
Omega-3
Medicine
Humans
age-related macular degeneration
chemistry.chemical_classification
030109 nutrition & dietetics
Nutrition and Dietetics
business.industry
alpha-Linolenic acid
clinical survey
food and beverages
Reproducibility of Results
dietary assessment
Middle Aged
Eicosapentaenoic acid
Confidence interval
Diet Records
Cross-Sectional Studies
chemistry
Docosahexaenoic acid
CODS
030221 ophthalmology & optometry
Female
Docosapentaenoic acid
fatty acid
omega-3
business
diet
lcsh:Nutrition. Foods and food supply
Food Science
Polyunsaturated fatty acid
Optometry
Zdroj: Nutrients, Vol 11, Iss 4, p 817 (2019)
Nutrients
Volume 11
Issue 4
ISSN: 2072-6643
Popis: Clinical recommendations relating to dietary omega-3 essential fatty acids (EFAs) should consider an individual&rsquo
s baseline intake. The time, cost, and practicality constraints of current techniques for quantifying omega-3 levels limit the feasibility of applying these methods in some settings, such as eye care practice. This preliminary validation study, involving 40 adults, sought to assess the validity of a novel questionnaire, the Clinical Omega-3 Dietary Survey (CODS), for rapidly assessing long-chain omega-3 intake. Estimated dietary intakes of long-chain omega-3s from CODS correlated with the validated Dietary Questionnaire for Epidemiology Studies (DQES), Version 3.2, (Cancer Council Victoria, Melbourne, Australia) and quantitative assays from dried blood spot (DBS) testing. The &lsquo
method of triads&rsquo
model was used to estimate a validity coefficient (&rho
) for the relationship between the CODS and an estimated &ldquo
true&rdquo
intake of long-chain omega-3 EFAs. The CODS had high validity for estimating the &rho
(95% Confidence Interval [CI]) for total long-chain omega-3 EFAs 0.77 (0.31&ndash
0.98), docosahexaenoic acid 0.86 (0.54&ndash
0.99) and docosapentaenoic acid 0.72 (0.14&ndash
0.97), and it had moderate validity for estimating eicosapentaenoic acid 0.57 (0.21&ndash
0.93). The total long-chain omega-3 EFAs estimated using the CODS correlated with the Omega-3 index (r = 0.37, p = 0.018) quantified using the DBS biomarker. The CODS is a novel tool that can be administered rapidly and easily, to estimate long-chain omega-3 sufficiency in clinical settings.
Databáze: OpenAIRE
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