Early-onset scoliosis in children aged 4-7 years in Nanjing, China: A cross-sectional study.

Background: This study aimed to investigate the potential variance in the prevalence of early-onset scoliosis among children aged 4-7 years and analyze the influencing factors. The goal was to establish a crucial reference point for monitoring and evaluating spinal curvature development in preschoolers, ultimately to reduce the occurrence of adverse health outcomes.

Methods: Children aged 4-7 years within the main urban area of Nanjing were selected using a stratified random sampling method.