Framework Development for Reducing Attrition in Digital Dietary Interventions: Systematic Review and Thematic Synthesis

Abstract

Background: Digital technology provides a promising avenue for dietary interventions, crucial in enhancing health outcomes and diminishing economic burdens. Nevertheless, high attrition rates in digital dietary interventions challenge their effectiveness.Objective: This study aims to conduct a meta-analysis of attrition rates in digital dietary interventions, systematically review the reasons for participant attrition, and identify potential solutions. Methods:We systematically searched PubMed, MEDLINE, Embase, CENTRAL, Web of Science, CINAHL Plus with Full Text, and Academic Search Complete using terms related to attrition in digital dietary interventions, focusing on studies published from 2013 to 2024. A random effects model was employed for the meta-analysis to determine attrition rates, complemented by a qualitative synthesis of included studies to explore reasons for attrition and suggest potential solutions.