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Relative Validity o...
Relative Validity of Micronutrient and Fiber Intake Assessed With Two New Interactive Meal- and Web-Based Food Frequency Questionnaires
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- Christensen, S. E. (author)
- Karolinska Institutet
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- Moller, E. (author)
- Karolinska Inst, Dept Med Epidemiol & Biostat, SE-17177 Stockholm, Sweden.
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- Bonn, S. E. (author)
- Karolinska Institutet
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- Ploner, A. (author)
- Karolinska Institutet
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- Bälter, Olle (author)
- KTH,Medieteknik och interaktionsdesign, MID
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- Lissner, Lauren, 1956 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa,Institute of Medicine, School of Public Health and Community Medicine,Univ Gothenburg, Dept Publ Hlth & Community Med, Gothenburg, Sweden.
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- Bälter, Katarina (author)
- Karolinska Institutet
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Karolinska Institutet Karolinska Inst, Dept Med Epidemiol & Biostat, SE-17177 Stockholm, Sweden (creator_code:org_t)
- 2014-02-21
- 2014
- English.
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In: Journal of Medical Internet Research. - : JMIR Publications Inc.. - 1438-8871. ; 16:2
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Abstract
Subject headings
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- Background: The meal-and Web-based food frequency questionnaires, Meal-Q and MiniMeal-Q, were developed for cost-efficient assessment of dietary intake in epidemiological studies. Objective: The objective of this study was to evaluate the relative validity of micronutrient and fiber intake assessed with Meal-Q and MiniMeal-Q. The reproducibility of Meal-Q was also evaluated. Methods: A total of 163 volunteer men and women aged between 20 and 63 years were recruited from Stockholm County, Sweden. Assessment of micronutrient and fiber intake with the 174-item Meal-Q was compared to a Web-based 7-day weighed food record (WFR). Two administered Meal-Q questionnaires were compared for reproducibility. The 126-item MiniMeal-Q, developed after the validation study, was evaluated in a simulated validation by using truncated Meal-Q data. Results: The study population consisted of approximately 80% women (129/163) with a mean age of 33 years (SD 12) who were highly educated (130/163, 80% with >12 years of education) on average. Cross-classification of quartiles with the WFR placed 69% to 90% in the same/adjacent quartile for Meal-Q and 67% to 89% for MiniMeal-Q. Bland-Altman plots with the WFR and the questionnaires showed large variances and a trend of increasing underestimation with increasing intakes. Deattenuated and energy-adjusted Spearman rank correlations between the questionnaires and the WFR were in the range rho=.25-.69, excluding sodium that was not statistically significant. Cross-classifications of quartiles of the 2 Meal-Q administrations placed 86% to 97% in the same/adjacent quartile. Intraclass correlation coefficients for energy-adjusted intakes were in the range of .50-.76. Conclusions: With the exception of sodium, this validation study demonstrates Meal-Q and MiniMeal-Q to be useful methods for ranking micronutrient and fiber intake in epidemiological studies with Web-based data collection.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Public Health, Global Health, Social Medicine and Epidemiology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences (hsv//eng)
Keyword
- validity
- reproducibility
- FFQ
- micronutrients
- weighed food record
- Internet
- adult
- DIETARY ASSESSMENT METHODS
- CORRELATION-COEFFICIENTS
- STATISTICAL-METHODS
- VALIDATION
- EPIDEMIOLOGY
- RECALL
- REPRODUCIBILITY
- AGREEMENT
- VITAMINS
- DESIGN
- validity
Publication and Content Type
- ref (subject category)
- art (subject category)
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