Quantifying and correcting bias due to outcome dependent self-reported weights in longitudinal study of weight loss interventions.

ABSTRACT: In response to the escalating global obesity crisis and its associated health and financial burdens, this paper presents a novel methodology for analyzing longitudinal weight loss data and assessing the effectiveness of financial incentives. Drawing from the Keep It Off trial-a three-arm randomized controlled study with 189 participants-we examined the potential impact of financial incentives on weight loss maintenance. Given that some participants choose not to weigh themselves because of small weight change or weight gains, which is a common phenomenon in many weight-loss studies, traditional methods, for example, the Generalized Estimating Equations (GEE) method tends to overestimate the effect size due to the assumption that data are missing completely at random. To address this challe

SUBMITTER: Tong J 

PROVIDER: S-EPMC10625563 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature