控制儿童看电子屏幕时间,应从小做起
  • 纳入3895名儿童,在12、18、24、36月及8岁时分别调查其电子屏幕使用时间,包括电视、电影、电子游戏时间;
  • 12月时电子屏幕中位使用时间30min,而36岁时增高到120min;
  • 聚类分析提示,26.7%的儿童的屏幕使用时间变化成快速增加型;
  • 女孩、父母研究生学历、非首次妊娠是“屏幕使用时间缓慢增加”的保护因素;
  • 屏幕使用时间前10%的儿童与父母诸多人口学特征存在关联;
  • 儿童看屏幕的习惯可能从婴儿时期就开始了,应该尽早进行行为干预。
主编推荐语
小笋干儿
本研究通过人群队列数据,将儿童成长过程中电子屏幕使用时间变化的重复测量数据进行分析,总体上归纳为2类:快速增长型和慢速增长型,并分析了其慢速增长的保护因素。该研究对指导家长进行儿童健康教育具有重要意义。
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JAMA Pediatrics [IF:12.004]

Association of Trajectory and Covariates of Children’s Screen Media Time

儿童屏幕媒体使用时间的变化轨迹和协变量

10.1001/jamapediatrics.2019.4488

2019-11-25, Article

Abstract & Authors:展开

Abstract:收起
Importance : Many children begin interacting with screen media as early as infancy. Although screen time is associated with negative developmental consequences, few longitudinal studies in the United States have examined covariates of screen time among children under 3 years of age.
Objectives : To identify trajectories of screen time among children aged 1 to 3 years, to examine their association with screen use at 8 years of age, and to assess potential determinants of screen time.
Design, Setting, and Participants : This prospective birth cohort study included 3895 children (3083 singletons and 812 unrelated multiples) in New York State who had screen time data available for at least 1 time point from 1 to 3 years of age; 1156 children had data at 8 years. The study spanned September 4, 2007, through June 12, 2014, in the first phase, and August 29, 2014, through November 15, 2019, in the second phase. Data analysis for the present study was conducted from September 28, 2018, to July 15, 2019.
Main Outcomes and Measures : Maternal reports of children’s television, movie, and computer game times were summed for total daily screen time at 12, 18, 24, 30, and 36 months of age. Two screen time trajectories (low and increasing use) were classified by cluster analysis, and logistic regression was used to model risk factors for the increasing trajectory. Children exhibiting the highest 10th percentile of screen use at each point were examined, and linear mixed models were used to identify risk factors of this high exposure category.
Results : Among the 3895 children included in the analysis (2031 boys [52.1%] and 1864 girls [47.9%]), median daily screen time increased from 30 (interquartile range, 0-60) minutes at 12 months of age to 120 (interquartile range, 75-200) minutes at 36 months of age. Of 1045 children with complete data at all 5 time points, 279 (26.7%) had an increasing screen time trajectory. Female child sex (adjusted odds ratio [aOR], 0.90; 95% CI, 0.81-0.99) and graduate school levels of paternal (aOR, 0.73; 95% CI, 0.56-0.95) and maternal (aOR, 0.60; 95% CI, 0.47-0.77) education, compared with having completed college, were associated with lower risk of increasing trajectory. Maternal nulliparity was associated with higher risk of increasing trajectory (aOR, 1.14; 95% CI, 1.00-1.30). Children with an increasing trajectory from 1 to 3 years of age had an additional 22 (95% CI, 11-33) minutes per day of screen time at 8 years of age. Covariates associated with the highest 10th percentile of screen exposure included paterman graduate school education compared with college (aOR, 0.63; 95% CI, 0.39-0.99), maternal graduate school education compared with college (aOR, 0.55; 95% CI, 0.37-0.82), maternal nulliparity (aOR, 1.98; 95% CI, 1.50-2.61), twins compared with singletons (aOR, 1.41; 95% CI, 1.05-1.91), non-Hispanic black compared with non-Hispanic white race/ethnicity (aOR, 4.77; 95% CI, 2.25-10.10), and type of care (home-based care aOR, 2.17 [95% CI, 1.38-3.41]; parental care aOR, 2.11 [95% CI, 1.41-3.15]) compared with center-based care.
Conclusions and Relevance : These findings suggest that a range of parental and child characteristics are associated with screen time. Screen time habits appear to track from as early as infancy, emphasizing the need for earlier interventions.

First Authors:
Mai-Han Trinh

Correspondence Authors:
Edwina H Yeung

All Authors:
Mai-Han Trinh,Rajeshwari Sundaram,Sonia L Robinson,Tzu-Chun Lin,Erin M Bell,Akhgar Ghassabian,Edwina H Yeung

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