Cohen Deborah A, Zarr Robert, Estrada Erika, Zhong Haoyuan, Han Bing
Kaiser Permanente Research and Evaluation, Southern California, 100 S Los Robles, Pasadena, CA 91101, USA.
Unity Health Care, Inc., Washington, DC, United States of America; Children's Hospital of Eastern Ontario, Ottawa, Canada.
Prev Med. 2025 Jan;190:108184. doi: 10.1016/j.ypmed.2024.108184. Epub 2024 Nov 26.
Electronic media is constantly evolving and has become an integral part of people's lives, especially among youth. This cross-sectional observational study assessed the association between electronic media use, health behaviors and outcomes, specifically, physical activity, stress and cognitive function among youth from an under-resourced community.
Participants ages six-sixteen were recruited from a Federally Qualified Health Center to participate in a study to promote park prescriptions with data collection between 2020 and 2024. At baseline, both intervention and control participants were asked to wear an accelerometer for one week and complete surveys about their electronic media time, stress, and cognitive function. We estimated the associations between electronic media use and health outcomes using cross-sectional multiple regressions.
Among the 441 participants, the average amount of electronic media use was 48.6 h per week (95 % CI: 46.0, 51.1), with children ages 6-9 engaging in 37.3 h per week (95 % CI: 34.5, 40.2) and youth ages 10-16 engaging in 56.4 h per week of electronic media time (95 % CI: 52.9, 59.9). Average daily MVPA was 16.6 min (95 % CI: 15.4, 17.8). Electronic media use time was negatively associated with MVPA and with cognitive function for all age groups. Electronic media time was only associated with stress for youth over age 10.
The associations among electronic media, MVPA, cognitive function and stress were statistically significant, but relatively modest. Future research should examine whether reducing time on electronic media will have a positive impact on physical activity and mental health outcomes.
#NCT04114734.
电子媒体在不断发展，已成为人们生活中不可或缺的一部分，尤其是在年轻人中。这项横断面观察性研究评估了资源匮乏社区青少年的电子媒体使用、健康行为与结果之间的关联，具体涉及身体活动、压力和认知功能。
从一家联邦合格健康中心招募了6至16岁的参与者，参加一项在2020年至2024年期间进行数据收集以推广公园处方的研究。在基线时，干预组和对照组的参与者都被要求佩戴加速度计一周，并完成关于他们的电子媒体使用时间、压力和认知功能的调查。我们使用横断面多元回归估计电子媒体使用与健康结果之间的关联。
在441名参与者中，电子媒体的平均使用量为每周48.6小时（95%置信区间：46.0，51.1），6至9岁的儿童每周使用37.3小时（95%置信区间：34.5，40.2），10至16岁的青少年每周电子媒体使用时间为56.4小时（95%置信区间：52.9，59.9）。平均每日中等至剧烈身体活动（MVPA）为16.6分钟（95%置信区间：15.4，17.8）。电子媒体使用时间与所有年龄组的MVPA和认知功能均呈负相关。电子媒体使用时间仅与10岁以上青少年的压力相关。
电子媒体、MVPA、认知功能和压力之间的关联具有统计学意义，但相对较小。未来的研究应考察减少电子媒体使用时间是否会对身体活动和心理健康结果产生积极影响。
#NCT04114734
