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Web-Based Dietary Intake Estimation to Assess the Reproducibility and Relative Validity of the EatWellQ8 Food Frequency Questionnaire: Validation Study

Web-Based Dietary Intake Estimation to Assess the Reproducibility and Relative Validity of the EatWellQ8 Food Frequency Questionnaire: Validation Study

Similarly, strong associations were found between food groups with a mean SCC value of 0.67, which was comparable with previous web-based FFQ reproducibility studies by Fallaize et al [16] and Vereecken et al [30] that reported mean correlations of 0.75 and 0.64, respectively. However, a limitation in the trial by Vereecken et al [30] was the short assessment time between repeatability of the FFQs of only 1 to 2 weeks, which may have impacted the power of the trial.

Balqees Alawadhi, Rosalind Fallaize, Rodrigo Zenun Franco, Faustina Hwang, Julie Lovegrove

JMIR Form Res 2021;5(3):e13591