Socio-economic inequalities in child growth: Identifying orientation and forward-looking layout

China has experienced huge economic development and demographic changes during the past three decades and is just like an epitome of the world with a large geographical and socio-economic variation within country. It witnesses a obvious change in child physical growth along with the rapid economic growth. In The Lancet Regional Health – Western Pacific, Gao and colleagues1 link the socio-economic inequalities with the growth trajectories of Chinese children by using a longitudinal design and family-/community-level indicators to assess the socio-economic-economic position (SEP), making it an important addition to the current evidence base.