Assessing the relative validity of the Scottish Collaborative Group FFQ for measuring dietary intake in adults.

ABSTRACT:

Objective

To assess the relative validity of the latest version of the Scottish Collaborative Group (SCG) FFQ (version 6.6) in adults living in Scotland.

Design

A cross-sectional validation study. Participants completed the self-administered, 169-item SCG FFQ followed by a 7 d, non-weighed food diary. Energy and energy-adjusted macronutrients and micronutrients were examined for relative validity through Spearman's correlation, the percentage of classification into thirds of intake, Cohen's weighted kappa (κ w) and Bland-Altman analysis.

Setting

General population living in Scotland.

Subjects

Ninety-six adults aged 18-65 years.

Results

Spearman's correlation coefficients ranged from 0·21 (retinol) to 0·71 (Mg). A median of 52 % of adults were correctly c

SUBMITTER: Hollis JL 

PROVIDER: S-EPMC10261257 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature