Exposure to a multi-level multi-component childhood obesity prevention community-randomized controlled trial: patterns determinants and implications

摘要

BackgroundFor community interventions to be effective in real-world conditions, participants need to have sufficient exposure to the intervention. It is unclear how the dose and intensity of the intervention differ among study participants in low-income areas. We aimed to understand patterns of exposure to different components of a multi-level multi-component obesity prevention program to inform our future impact analyses.