DIetary ASSessment (DIASS) Study: Design of an Evaluation Study to Assess Validity, Usability and Perceived Burden of an Innovative Dietary Assessment Methodology

Desiree A. Lucassen*, Elske M. Brouwer-Brolsma, Anne I. Slotegraaf, Esther Kok, Edith J.M. Feskens

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

During recent years, the integration of technology has substantially improved self-reported dietary assessment methods, such as food frequency questionnaires (FFQ), food records, and 24-h recalls. To further reduce measurement error, additional innovations are urgently needed. Memory-related measurement error is one of the aspects that warrants attention, which is where new smart-phone technologies and ecological momentary assessment (EMA) approaches provide a unique opportunity. In this article, we describe the DIASS study, which was designed to evaluate an innovative 2-h recall (2hR) smartphone-based methodology, against traditional 24-h recalls, FFQ, and biomarkers, to assess both actual and habitual dietary intake. It is hypothesized that a 2-h reporting window decreases reliance on memory and reporting burden, and increases data accuracy. We included 215 men (28%) and women (72%), with a mean ± SD age of 39 ± 19 years and a mean ± SD BMI of 23.8 ± 4.0. Most participants were highly educated (58%). Response rates for the various dietary assessment methods were >90%. Besides the evaluation of the accuracy, usability, and perceived burden of the 2hR methodology, the study set-up also allows for (further) evaluation of the other administrated dietary assessment tools.

Original languageEnglish
Article number1156
JournalNutrients
Volume14
Issue number6
DOIs
Publication statusPublished - 9 Mar 2022

Keywords

  • Diet quality
  • Dietary assessment
  • EMA
  • FFQ
  • Nutritional biomarkers
  • Recall
  • Technology
  • Validation

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