当代 9-10 岁儿童的屏幕时间使用与 1 年后更高的身体质量指数百分位相关：一项前瞻性队列研究。
Contemporary screen time usage among children 9-10-years-old is associated with higher body mass index percentile at 1-year follow-up: A prospective cohort study.
机构信息
Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, San Francisco, California, USA.
Center for Health Sciences, SRI International, Menlo Park, California, USA.
出版信息
Pediatr Obes. 2021 Dec;16(12):e12827. doi: 10.1111/ijpo.12827. Epub 2021 Jun 28.
OBJECTIVE
There is a paucity of prospective research exploring the relationship among contemporary screen time modalities (e.g., video streaming, video chatting, texting and social networking) and body mass index (BMI) percentile. The objective of this study was to determine the prospective associations between screen time behaviours in a large and demographically diverse population-based cohort of 9-10-year-old children and BMI percentile at 1-year follow-up.
METHODS
We analyzed prospective cohort data from the Adolescent Brain Cognitive Development (ABCD) Study (N = 11 066). Multiple linear regression analyses were conducted to estimate associations between baseline screen time behaviours (exposure) and BMI percentile at 1-year follow-up, adjusting for race/ethnicity, sex, household income, parent education, depression, binge-eating disorder and baseline BMI percentile.
RESULTS
Each additional hour of total screen time per day was prospectively associated with a 0.22 higher BMI percentile at 1-year follow-up (95% CI 0.10-0.34) after adjusting for covariates. When examining specific screen time behaviours, each additional hour of texting (B = 0.92, 95% CI 0.29-1.55), video chat (B = 0.72, 95% CI 0.09-1.36) and video games (B = 0.42, 95% CI 0.06-0.78) was significantly prospectively associated with higher BMI percentile.
CONCLUSIONS
Screen time is prospectively associated with a higher BMI percentile 1 year later among children 9-10 years old.
目的
目前，前瞻性研究探讨当代屏幕时间模式（例如视频流、视频聊天、短信和社交网络）与体重指数（BMI）百分位之间关系的研究较少。本研究旨在确定在一个大规模、人口统计学多样化的 9-10 岁儿童基础队列中，屏幕时间行为与 1 年后 BMI 百分位之间的前瞻性关联。
方法
我们分析了青少年大脑认知发育（ABCD）研究（N=11066）的前瞻性队列数据。采用多元线性回归分析，估计基线屏幕时间行为（暴露）与 1 年后 BMI 百分位之间的关联，调整了种族/民族、性别、家庭收入、父母教育程度、抑郁、暴食障碍和基线 BMI 百分位等因素。
结果
在校正了协变量后，每天额外增加 1 小时总屏幕时间与 1 年后 BMI 百分位增加 0.22 相关（95%CI 0.10-0.34）。当检查特定的屏幕时间行为时，每增加 1 小时发短信（B=0.92，95%CI 0.29-1.55）、视频聊天（B=0.72，95%CI 0.09-1.36）和视频游戏（B=0.42，95%CI 0.06-0.78）与 BMI 百分位的升高呈显著正相关。
结论
在 9-10 岁的儿童中，屏幕时间与 1 年后 BMI 百分位升高呈前瞻性关联。
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