Relative validity of the food frequency questionnaire used to assess dietary intake in the Leiden Longevity Study.
Background: Invalid information on dietary intake may lead to false diet-disease associations. This study was conducted to examine the relative validity of the food frequency questionnaire (FFQ) used to assess dietary intake in the Leiden Longevity Study.Methods: A total of 128 men and women partici...
| Publicado en: | Nutrition Journal Vol. 12; pp. 75 - 76 |
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| Autores principales: | , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
BioMed Central
2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104077462&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104077462 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14752891 1CYY jtl: Nutrition Journal issn: 14752891 maglogo: N pubinfo: dt: 2013 vid: 12 pid: 24147 pub: BioMed Central artinfo: ui: 104077462 104077462 NLM23758629 2012152963 10.1186/1475-2891-12-75 NLM23758629 PMC3680188 104077462 ppf: 75 ppct: 1 formats: fmt: @attributes: type: P tig: atl: Relative validity of the food frequency questionnaire used to assess dietary intake in the Leiden Longevity Study. aug: au: Streppel, Martinette T de Vries, Jeanne Hm Meijboom, Saskia Beekman, Marian de Craen, Anton Jm Slagboom, P Eline Feskens, Edith Jm de Vries, Jeanne H M de Craen, Anton J M Feskens, Edith J M affil: Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands. Martinette.Streppel@wur.nl. sug: subj: Energy Intake Food Habits Longevity Aged Female Human Linear Regression Male Memory Middle Age Netherlands Nutritional Assessment Reproducibility of Results Surveys Questionnaires Aged: 65+ years Middle Aged: 45-64 years Female Male ab: Background: Invalid information on dietary intake may lead to false diet-disease associations. This study was conducted to examine the relative validity of the food frequency questionnaire (FFQ) used to assess dietary intake in the Leiden Longevity Study.Methods: A total of 128 men and women participating in the Leiden Longevity Study were included in the present validation study. The performance of the FFQ was evaluated using the mean of three 24-hour recalls as the reference method. Evaluation in estimating dietary intake at the group level was done by paired t-tests. The relative validity of the individual energy adjusted level of intake was assessed with correlation analyses (Pearson's), with correction for measurement error.Results: On group level, the FFQ overestimated as well as underestimated absolute intake of various nutrients and foods. The Bland and Altman plot for total energy intake showed that the agreement between the FFQ and the 24-hour recalls was dependent of intake level. Pearson correlation coefficients ranged from 0.21 (alpha linolenic acid) to 0.78 (ethanol) for nutrients and from -0.02 (legumes, non-significant) to 0.78 (alcoholic beverages) for foods. Adjustment for energy intake slightly lowered the correlation coefficients for nutrients (mean coefficient: 0.48 versus 0.50), while adjustment for within-subject variation in the 24-h recalls resulted in higher correlation coefficients for both nutrients and foods (mean coefficient: 0.69 for nutrients and 0.65 for foods).Conclusions: For most nutrients and foods, the ability of the FFQ to rank subjects was acceptable to good. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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