Weight-related changes in MRI-derived measures of body composition and liver steatosis: a large-scale analysis for obesity trial design.

Abstract

Amid rising global obesity rates and advances in weight-loss therapies, monitoring body composition and ectopic fat could refine trial design. We quantified weight-related changes in body composition and liver steatosis prior to widespread adoption of incretin treatments. Adults (N = 3070) from the UK Biobank with repeat abdominal MRI scans were included. Percent weight change from baseline was categorised: stable (0 ± 2%), mild change (2-5% weight gain/loss), moderate change (5-10% weight gain/