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Table of Contents
Vol. 49, No. 4, 2005
Issue release date: July – August
Section title: Paper
Ann Nutr Metab 2005;49:221–227
(DOI:10.1159/000087276)

Validity and Reproducibility of a Precoded Questionnaire to Assess Fruit and Vegetable Intake in European 11- to 12-Year-Old Schoolchildren

Haraldsdóttir J.a · Thórsdóttir I.b, c · de Almeida M.D.V.d · Maes L.e · Pérez Rodrigo C.f · Elmadfa I.g · Frost Andersen L.h
aDepartment of Human Nutrition, Royal Veterinary and Agricultural University, Copenhagen, Denmark; bUnit for Nutrition Research, Landspitali University Hospital, and cDepartment of Food Science, University of Iceland, Reykjavik, Iceland; dFaculty of Nutrition and Food Sciences, University of Porto, Porto, Portugal; eDepartment of Public Health, Ghent University, Ghent, Belgium; fCommunity Nutrition Unit, Bilbao, Spain; gInstitute for Nutritional Sciences, University of Vienna, Vienna, Austria; hDepartment of Nutrition, University of Oslo, Oslo, Norway

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Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: August 26, 2005
Issue release date: July – August

Number of Print Pages: 7
Number of Figures: 1
Number of Tables: 6

ISSN: 0250-6807 (Print)
eISSN: 1421-9697 (Online)

For additional information: http://www.karger.com/ANM

Abstract

Background/Aims: Validity and reproducibility were evaluated of a new questionnaire to assess fruit and vegetable intakes in 11- to 12-year-old children. Methods: The precoded teacher-assisted self-administered questionnaire included two sections: a 24-hour recall part and a food frequency part. Validity was tested in 4 countries (Denmark, Iceland, Norway, Portugal; n = 43–60 per country) using a 1-day weighed food record and 7-day food records as reference methods. Test-retest (7–12 days apart) reproducibility was assessed in 6 countries (Belgium, Denmark, Iceland, Norway, Portugal, Spain; n = 60–74 per country). Results: Spearman rank correlations for fruit and vegetable intake according to the frequency part and the 7-day food record ranged between r = 0.40–0.53. Between 25–50% were classified into the same quartile and 70–88% into the same or adjacent quartile. Test-retest Spearman rank correlations for the food frequency part were r = 0.47–0.84. Three countries showed no significant difference between fruit intake as assessed with the 24-hour recall part and the 1-day weighed food record, and 2 countries showed no significant difference for vegetables. In the other countries, the 24-hour recall part resulted in substantially higher mean intake levels. Conclusion: Validity and reproducibility as to ranking of subjects were regarded to be satisfactory in all countries. Group mean intake, based on the original 24-hour part, was valid for fruit in 3 countries and for vegetables in 2 countries, and this part was subsequently adjusted to avoid overestimation, before the questionnaire was used in the Pro Children study.

© 2005 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: August 26, 2005
Issue release date: July – August

Number of Print Pages: 7
Number of Figures: 1
Number of Tables: 6

ISSN: 0250-6807 (Print)
eISSN: 1421-9697 (Online)

For additional information: http://www.karger.com/ANM


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Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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