1 Department of Pediatrics, Keck School of Medicine, University of Southern California, Division of Neurology, Children's Hospital Los Angeles, Los Angeles.
2 Department of Pediatrics, University of Southern California, Division of Endocrinology, Diabetes, and Metabolism, Children's Hospital Los Angeles, Los Angeles.
3 Biostatistics and Data Management Core, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California.
4 Department of Pediatrics, Division of Pediatric Research Administration, Children's Hospital Los Angeles, Los Angeles, California.
This cohort study uses a natural experimental design to assess the impact of the COVID-19 lockdown on weight gain as associated with socioeconomic disadvantage in a diverse population of US youth.