Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Graduate School / Faculty of Information Science and Technology, Hokkaido University, Sapporo, Japan.
Environ Res. 2024 Nov 15;261:119715. doi: 10.1016/j.envres.2024.119715. Epub 2024 Aug 2.
With the recent advent of technology, it is important to confirm the health and safety of the youth. This study aimed to prospectively evaluate the relationship between Wi-Fi, cordless phones, and mobile phone usage patterns and behavioral problems.
This study involved 2465 children aged 8-17 years from the Hokkaido Study on Environment and Children's Health from October 2020 to January 2021, with a follow-up from September 2021 to March 2022. The mother-child dyad provided information on the presence of residential Wi-Fi and cordless phones, cordless phone call duration, and mobile phone usage pattern (duration of calls using mobile network and internet, online audio streaming, online video streaming, and playing online games) via a baseline questionnaire. Based on the scores on Strength and Difficulties Questionnaire at baseline and follow-up, the children were categorized into four groups: normal, persistent, improved, and concurrent.
No significant association was found between Wi-Fi, mobile phone calls via mobile networks, and behavioral problems. Cordless phone at home had higher odds for improvement in total difficulty scores, and cordless phone for calling more than 4 min per week had lower odds of persistent problematic prosocial behavior. Longer duration of mobile phone calling via the internet (>40 min/week) had higher odds of concurrent total difficulties. Mobile phone calling via mobile network for <5 min per week had higher odds for improved total difficulty scores. Audio streaming via mobile phones for 60-120 min had lower odds of persistent total difficulties.
Our results showed sporadic findings between residential RF-EMF indoor sources and mobile phone usage pattern. These observed findings could be affected by residual confounding and chance findings. Ongoing follow-up studies are necessary to further explore this association through detailed exposure assessment and addressing the potential limitations of our study.
随着技术的最新发展，确认青少年的健康和安全变得尤为重要。本研究旨在前瞻性评估 Wi-Fi、无绳电话和移动电话使用模式与行为问题之间的关系。
本研究纳入了 2020 年 10 月至 2021 年 1 月期间来自北海道环境与儿童健康研究的 2465 名 8-17 岁的儿童，随访时间为 2021 年 9 月至 2022 年 3 月。通过基线问卷，母子二人组提供了有关住宅 Wi-Fi 和无绳电话、无绳电话通话时长以及移动电话使用模式（移动网络通话时长、互联网通话时长、在线音频流、在线视频流和在线游戏）的信息。根据基线和随访时的《长处和困难问卷》评分，儿童被分为四组：正常、持续、改善和并发。
Wi-Fi、通过移动网络的手机通话与行为问题之间无显著关联。家中的无绳电话通话具有更高的改善总分困难评分的可能性，每周通话超过 4 分钟的无绳电话通话具有更低的持续出现亲社会行为问题的可能性。通过互联网拨打手机的时间较长（>40 分钟/周），并发总分困难的可能性更高。每周通过移动网络通话少于 5 分钟，具有更高的改善总分困难评分的可能性。通过手机进行音频流的时间为 60-120 分钟，具有更低的持续出现总分困难的可能性。
我们的研究结果显示住宅射频电磁场室内源与移动电话使用模式之间存在零星的发现。这些观察结果可能受到残余混杂因素和偶然发现的影响。需要进行持续的随访研究，通过详细的暴露评估和解决我们研究的潜在局限性，进一步探索这种关联。
