Online Version of the Self-Administered Food Frequency Questionnaire for the Iranian Adult Population.

ABSTRACT:

Background

With the growing accessibility of the internet, dietary assessment tools, including food frequency questionnaires (FFQs), are increasingly being adapted for web platforms. A web-based FFQ was developed as a dietary assessment tool for healthy adults in Iran.

Objective

This study aimed to develop an online FFQ for dietary data collection among Iranian adults and to compare its performance with the validated Iranian printed FFQ.

Methods

Eligible participants were randomly assigned to complete both the printed and web-based FFQs. The type of FFQ alternated for each participant after 10 days. The agreement between the two FFQs was assessed using the Bland-Altman method and correlation analysis.

Results

Of the 190 participants, final analyses were conduct

SUBMITTER: Morvaridi M 

PROVIDER: S-EPMC11815801 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature