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Open Access Research

Relative validation of the KiGGS Food Frequency Questionnaire among adolescents in Germany

Julia Truthmann1, Gert BM Mensink2 and Almut Richter2*

Author Affiliations

1 Technische Universität München, School of Management, Marketing and Consumer Research, Alte Akademie 16, D-85350 Freising, Germany

2 Robert Koch Institute, Department of Epidemiology and Health Reporting, Post box 65 02 61, D-13302 Berlin, Germany

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Nutrition Journal 2011, 10:133  doi:10.1186/1475-2891-10-133

Published: 7 December 2011

Additional files

Additional file 1:

Recoding of frequency and portion size data. The file contains information about the recoding of the frequencies and the portion sizes of each food item to calculate the average food-group intake per day.

Format: PDF Size: 19KB Download file

This file can be viewed with: Adobe Acrobat Reader

Open Data

Additional file 2:

Correlation coefficients between both methods by body weight, socio-economic status and sex. The file contains the results of correlation analyses of food group intake between both instruments for subgroups according to body weight, socio-economic status and sex.

Format: PDF Size: 31KB Download file

This file can be viewed with: Adobe Acrobat Reader

Open Data