Reliability and relative validity of a food frequency questionnaire to assess food group intakes in New Zealand adolescents


BACKGROUND Due to the absence of a current and validated food frequency questionnaire (FFQ) for use in New Zealand adolescents, there is a need to develop one as a cost-effective way to assess adolescents' food patterns. This study aims to examine the test-retest reliability and relative validity of the New Zealand Adolescent FFQ (NZAFFQ) to assess food… (More)
DOI: 10.1186/1475-2891-11-65

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