2011-12-07Zeitschriftenartikel
Relative validation of the KiGGS Food Frequency Questionnaire among adolescents in Germany
Truthmann, Julia; Mensink, Gert; Richter, Almut
Background: The aim of this study was to determine the relative validity of the self-administered Food Frequency Questionnaire (FFQ) “What do you eat?”, which was used in the German National Health Interview and Examination ...