Association Between Screen Time Trajectory and Early Childhood Development in Children in China.

作者：Jin Zhao, Zhangsheng Yu, Xiaoning Sun, S. Wu, Jun Zhang, D. Zhang, Yunting Zhang, F. Jiang · 发表于：JAMA pediatrics · 年份：2022 · DOI：10.1001/jamapediatrics.2022.1630 · 被引用次数：103 · 研究领域：Medicine

Importance Screen time has become an integral part of children's daily lives. Nevertheless, the developmental consequences of screen exposure in young children remain unclear. Objective To investigate the screen time trajectory from 6 to 72 months of age and its association with children's development at age 72 months in a prospective birth cohort. Design, Setting, and Participants Women in Shanghai, China, who were at 34 to 36 gestational weeks and had an expected delivery date between May 2012 and July 2013 were recruited for this cohort study. Their children were followed up at 6, 9, 12, 18, 24, 36, 48, and 72 months of age. Children's screen time was classified into 3 groups at age 6 months: continued low (ie, stable amount of screen time), late increasing (ie, sharp increase in screen time at age 36 months), and early increasing (ie, large amount of screen time in early stages that remained stable after age 36 months). Cognitive development was assessed by specially trained research staff in a research clinic. Of 262 eligible mother-offspring pairs, 152 dyads had complete data regarding all variables of interest and were included in the analyses. Data were analyzed from September 2019 to November 2021. Exposures Mothers reported screen times of children at 6, 9, 12, 18, 24, 36, 48, and 72 months of age. Main Outcomes and Measures The cognitive development of children was evaluated using the Wechsler Intelligence Scale for Children, 4th edition, at age 72 months. ...