Development of a short food frequency questionnaire to assess diet quality in UK adolescents using the National Diet and Nutrition Survey.

ABSTRACT:

Background

UK adolescents consume fewer fruits and vegetables and more free sugars than any other age group. Established techniques to understand diet quality can be difficult to use with adolescents because of high participant burden. This study aimed to identify key foods that indicate variation in diet quality in UK adolescents for inclusion in a short food frequency questionnaire (FFQ) and to investigate the associations between adolescent diet quality, nutritional biomarkers and socio-demographic factors.

Methods

Dietary, demographic and biomarker data from waves 1-8 of the National Diet and Nutrition Survey rolling programme were used (n=2587; aged 11-18 years; 50% boys; n=≤997 biomarker data). Principal component analysis (PCA) was applied to 139 food groups to identi

SUBMITTER: Shaw S 

PROVIDER: S-EPMC7802176 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature