Cross-sectional study on key indicators of infant and toddler cognitive development

The purpose of this study is to describe the distribution of children and infants in China, aged 8,000 months or more, who have achieved the core indicators of cognitive development. This information can serve as a reference for evaluating the cognitive development of Chinese infants. In September to December 2020, a multi-stage stratified random sampling method was used to select 30 districts/counties from 15 provinces, autonomous regions, and municipalities directly under the Central Government in the eastern, central, and western regions of China. A cross-sectional survey was conducted on 8,010 children aged 0 to 36 months, to determine the month in which each child had achieved the milestones of infant development. The results included data on six dimensions of cognitive development in infants: “sensory perception,” “attention,” “memory,” “imitation,” “thinking…”