Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, San Francisco, CA.
Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada.
J Pediatr. 2022 Jan;240:213-220.e2. doi: 10.1016/j.jpeds.2021.08.077. Epub 2021 Sep 2.
To determine sociodemographic correlates of contemporary screen time use among a diverse population-based sample of 9- and 10-year-old children.
In 2021, we analyzed cross-sectional baseline (2016-2018) data from the Adolescent Brain Cognitive Development study (n = 10 755). Multiple linear regression analyses were conducted to estimate associations between sociodemographic factors (sex, race/ethnicity, country of birth, household income, parental education) and 6 contemporary forms of screen time (television, videos [eg, YouTube], video games, social networking, texting, and video chat).
On average, children reported 3.99 hours of screen time per day across 6 modalities, with the most time spent watching/streaming television shows/movies (1.31 hours), playing video games (1.06 hours), and watching/streaming videos (1.05 hours). On average, Black children reported 1.58 more hours of screen time per day and Asian children reported 0.35 less hours of screen time per day compared with White children (mean 3.46 hours per day), and these trends persisted across most modalities. Boys reported higher overall screen time (0.75 hours more) than girls, which was primarily attributed to video games and videos. Girls reported more time texting, social networking, and video chatting than boys. Higher income was associated with lower screen time usage across all modalities except video chat. However, in high-income households, Latinx children reported 0.65 more hours of screen time per day than White children.
Given the sociodemographic differences in child screen use, guideline implementation strategies can focus on key populations, encourage targeted counseling by pediatricians, and adapt Family Media Use Plans for diverse backgrounds.
在一个由 9 岁和 10 岁儿童组成的多样化人群样本中，确定当代屏幕使用时间与社会人口统计学因素的相关性。
2021 年，我们分析了青少年大脑认知发育研究（n=10755）的横断面基线（2016-2018 年）数据。采用多元线性回归分析，估计社会人口统计学因素（性别、种族/民族、出生地、家庭收入、父母教育程度）与 6 种当代屏幕使用形式（电视、视频[如 YouTube]、视频游戏、社交网络、短信和视频聊天）之间的关联。
平均而言，儿童每天通过 6 种模式报告 3.99 小时的屏幕时间，其中观看/流媒体电视节目/电影（1.31 小时）、玩视频游戏（1.06 小时）和观看/流媒体视频（1.05 小时）的时间最多。与白人儿童相比，黑人儿童每天报告的屏幕时间多 1.58 小时，而亚洲儿童每天报告的屏幕时间少 0.35 小时（平均每天 3.46 小时），这些趋势在大多数模式中都持续存在。男孩的总屏幕时间（多 0.75 小时）高于女孩，主要归因于视频游戏和视频。女孩报告的短信、社交网络和视频聊天时间多于男孩。除视频聊天外，高收入与所有模式下的低屏幕时间使用相关。然而，在高收入家庭中，拉丁裔儿童每天报告的屏幕时间比白人儿童多 0.65 小时。
鉴于儿童屏幕使用的社会人口统计学差异，指南实施策略可以关注关键人群，鼓励儿科医生进行有针对性的咨询，并为不同背景的家庭制定媒体使用计划。
