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Reproducibility of food consumption frequencies derived from the Children's Eating Habits Questionnaire used in the IDEFICS study
Univ Bremen, Bremen Inst Prevent Res & Social Med, Dept Epidemiol Methods & Etiol Res, D-28359 Bremen, Germany.
Univ Bremen, Bremen Inst Prevent Res & Social Med, Dept Epidemiol Methods & Etiol Res, D-28359 Bremen, Germany.
Univ Bremen, Bremen Inst Prevent Res & Social Med, Dept Epidemiol Methods & Etiol Res, D-28359 Bremen, Germany.
Fdn IRCCS, Dept Prevent & Predict Med, Nutrit Epidemiol Unit, Ist Nazl Tumori, Milan, Italy.
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2011 (English)In: International Journal of Obesity, ISSN 0307-0565, E-ISSN 1476-5497, Vol. 35, p. S61-S68Article in journal (Refereed) Published
Abstract [en]

Objective: To investigate the reproducibility of food consumption frequencies derived from the food frequency section of the Children's Eating Habits Questionnaire (CEHQ-FFQ) that was developed and used in the IDEFICS (Identification and prevention of dietary-and lifestyle-induced health effects in children and infants) project to assess food habits in 2- to 9-year-old European children. Design and methods: From a subsample of 258 children who participated in the IDEFICS baseline examination, parental questionnaires of the CEHQ were collected twice to assess reproducibility of questionnaire results from 0 to 354 days after the first examination. Weighted Cohen's kappa coefficients (kappa) and Spearman's correlation coefficients (r) were calculated to assess agreement between the first and second questionnaires for each food item of the CEHQ-FFQ. Stratification was performed for sex, age group, geographical region and length of period between the first and second administrations. Fisher's Z transformation was applied to test correlation coefficients for significant differences between strata. Results: For all food items analysed, weighted Cohen's kappa coefficients (kappa) and Spearman's correlation coefficients (r) were significant and positive (P < 0.001). Reproducibility was lowest for diet soft drinks (kappa = 0.23, r = 0.32) and highest for sweetened milk (kappa = 0.68, r = 0.76). Correlation coefficients were comparable to those of previous studies on FFQ reproducibility in children and adults. Stratification did not reveal systematic differences in reproducibility by sex and age group. Spearman's correlation coefficients differed significantly between northern and southern European countries for 10 food items. In nine of them, the lower respective coefficient was still high enough to conclude acceptable reproducibility. As expected, longer time (> 128 days) between the first and second administrations resulted in a generally lower, yet still acceptable, reproducibility. Conclusion: Results indicate that the CEHQ-FFQ gives reproducible estimates of the consumption frequency of 43 food items from 14 food groups in European children. International Journal of Obesity (2011) 35, S61-S68; doi:10.1038/ijo.2011.36

Place, publisher, year, edition, pages
Nature Publishing Group, 2011. Vol. 35, p. S61-S68
Keyword [en]
reproducibility, reliability, food frequency questionnaire, children, Europe, proxy
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:his:diva-14471DOI: 10.1038/ijo.2011.36ISI: 000289515100008PubMedID: 21483424Scopus ID: 2-s2.0-7995444044OAI: oai:DiVA.org:his-14471DiVA, id: diva2:1157808
Note

Group Author(s): IDEFICS Consortium

Available from: 2017-11-16 Created: 2017-11-16 Last updated: 2017-11-27Bibliographically approved

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Eiben, Gabriele

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