Reproducibility of an FFQ validated in Spain.
| Title: | Reproducibility of an FFQ validated in Spain. |
|---|---|
| Authors: | de la Fuente-Arrillaga, Carmen1 cfuente@unav.es, Ruiz, Zenaida Vázquez1, Bes-Rastrollo, Maira1, Sampson, Laura2, Martinez-González, Miguel Angel1 |
| Source: | Public Health Nutrition. Sep2010, Vol. 13 Issue 9, p1364-1372. 9p. |
| Subject Terms: | *FOOD chemistry, *QUESTIONNAIRES, *OLIVE oil, *OMEGA-3 fatty acids, *ALCOHOLIC beverages |
| Abstract: | Objective: To evaluate the reproducibility of a semi-quantitative FFQ used in the Seguimiento Universidad de Navarra (SUN) project. Design: The data that were analysed were collected from an FFQ answered twice by a 326-participant subsample of the SUN project (115 men, 35·3%; 211 women, 64·7 %), with either less than 1 year or more than 1 year between responses. The questionnaire included 136 items. Pearson correlation coefficients (r) were calculated to evaluate the magnitude of the association between both measures after energy adjustment and correcting for within-person variability. We also evaluated misclassification by quintiles distribution. Results: The highest corrected correlations among participants who answered before 1 year were found for PUFA (r=0·99). Among participants who answered after 1 year between both questionnaires, olive oil had the highest corrected correlation (r=0·99). The highest percentage of gross misclassification, lowest quintile in FFQ1 and highest quintile in FFQ2 or highest quintile in FFQ1 and lowest quintile in FFQ2 was for cereals, fish or seafood, and n-3 fatty acids (7·6 %). Alcoholic drinks had the highest percentage of reasonable classification, same or adjacent quintile, in FFQ1 and FFQ2 (86·4 %). Conclusions: Our study suggests that FFQ reproducibility is acceptable for participants who answered the same questionnaire twice less than 1 year apart. Participants who answered FFQ more than 1 year apart showed worse values on reproducibility. We consider this Spanish FFQ as an important, valid and reproducible tool in nutritional epidemiology. [ABSTRACT FROM AUTHOR] |
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| Items | – Name: Title Label: Title Group: Ti Data: Reproducibility of an FFQ validated in Spain. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22de+la+Fuente-Arrillaga%2C+Carmen%22">de la Fuente-Arrillaga, Carmen</searchLink><relatesTo>1</relatesTo><i> cfuente@unav.es</i><br /><searchLink fieldCode="AR" term="%22Ruiz%2C+Zenaida+Vázquez%22">Ruiz, Zenaida Vázquez</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bes-Rastrollo%2C+Maira%22">Bes-Rastrollo, Maira</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sampson%2C+Laura%22">Sampson, Laura</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Martinez-González%2C+Miguel+Angel%22">Martinez-González, Miguel Angel</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Public+Health+Nutrition%22">Public Health Nutrition</searchLink>. Sep2010, Vol. 13 Issue 9, p1364-1372. 9p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22FOOD+chemistry%22">FOOD chemistry</searchLink><br />*<searchLink fieldCode="DE" term="%22QUESTIONNAIRES%22">QUESTIONNAIRES</searchLink><br />*<searchLink fieldCode="DE" term="%22OLIVE+oil%22">OLIVE oil</searchLink><br />*<searchLink fieldCode="DE" term="%22OMEGA-3+fatty+acids%22">OMEGA-3 fatty acids</searchLink><br />*<searchLink fieldCode="DE" term="%22ALCOHOLIC+beverages%22">ALCOHOLIC beverages</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Objective: To evaluate the reproducibility of a semi-quantitative FFQ used in the Seguimiento Universidad de Navarra (SUN) project. Design: The data that were analysed were collected from an FFQ answered twice by a 326-participant subsample of the SUN project (115 men, 35·3%; 211 women, 64·7 %), with either less than 1 year or more than 1 year between responses. The questionnaire included 136 items. Pearson correlation coefficients (r) were calculated to evaluate the magnitude of the association between both measures after energy adjustment and correcting for within-person variability. We also evaluated misclassification by quintiles distribution. Results: The highest corrected correlations among participants who answered before 1 year were found for PUFA (r=0·99). Among participants who answered after 1 year between both questionnaires, olive oil had the highest corrected correlation (r=0·99). The highest percentage of gross misclassification, lowest quintile in FFQ1 and highest quintile in FFQ2 or highest quintile in FFQ1 and lowest quintile in FFQ2 was for cereals, fish or seafood, and n-3 fatty acids (7·6 %). Alcoholic drinks had the highest percentage of reasonable classification, same or adjacent quintile, in FFQ1 and FFQ2 (86·4 %). Conclusions: Our study suggests that FFQ reproducibility is acceptable for participants who answered the same questionnaire twice less than 1 year apart. Participants who answered FFQ more than 1 year apart showed worse values on reproducibility. We consider this Spanish FFQ as an important, valid and reproducible tool in nutritional epidemiology. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Public Health Nutrition is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1017/S1368980009993065 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1364 Subjects: – SubjectFull: FOOD chemistry Type: general – SubjectFull: QUESTIONNAIRES Type: general – SubjectFull: OLIVE oil Type: general – SubjectFull: OMEGA-3 fatty acids Type: general – SubjectFull: ALCOHOLIC beverages Type: general Titles: – TitleFull: Reproducibility of an FFQ validated in Spain. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: de la Fuente-Arrillaga, Carmen – PersonEntity: Name: NameFull: Ruiz, Zenaida Vázquez – PersonEntity: Name: NameFull: Bes-Rastrollo, Maira – PersonEntity: Name: NameFull: Sampson, Laura – PersonEntity: Name: NameFull: Martinez-González, Miguel Angel IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2010 Type: published Y: 2010 Identifiers: – Type: issn-print Value: 13689800 Numbering: – Type: volume Value: 13 – Type: issue Value: 9 Titles: – TitleFull: Public Health Nutrition Type: main |
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