The Comparative Reproducibility and Validity of a Non-Nutritive Sweetener Food Frequency Questionnaire.

ABSTRACT: In order to better assess non-nutritive sweetener (NNS) consumption, measurement tools with greater utility are needed. The objective of this investigation is to determine the reproducibility and validity of a newly developed NNS food frequency questionnaire (NNS-FFQ) that measures five types of NNS (saccharin, aspartame, acesulfame potassium, sucralose and erythritol). Adult participants (n = 123, 56% female, 75% Caucasian, mean age = 36.8 ± 16.6) completed the NNS-FFQ twice and had 24-h dietary recalls three times over a two-week study period. Reproducibility between two administrations of the NNS-FFQ was assessed via Bland-Altman plots, Spearman's correlations (rs) and paired samples t-tests. Bland-Altman plots, Cohen's κ, Spearman's correlations (rs), and paired samples t-tests compare

SUBMITTER: Myers EA 

PROVIDER: S-EPMC5872752 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature