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 Truthmann et al. Nutrition Journal 2011 10:133 doi:10.1186/1475-2891-10-133 |