研究のタイプ: 疫学研究 (observational study)

[思春期層における携帯電話の使用、行動問題および集中力:前向き研究] epidem.

Mobile phone use, behavioural problems and concentration capacity in adolescents: A prospective study.

掲載誌: Int J Hyg Environ Health 2016; 219 (8): 759-769

この研究は、HERMES(Health Effects Related to Mobile phonE use in adolescentS:思春期層の携帯電話使用に関連した健康影響)研究と称し、スイスの12-17歳の男女439人を調査したものである。行動問題は「子どもの強さと困難さの質問調査票(SDQ)」、集中力は標準化コンピュータ化された認知テスト(FAKT)を用いてそれぞれ評価した。この2項目と各種のRF-EMFばく露指標(無線通信装置使用の自己申告値とオペレータ記録値、脳および全身のRF-EMF累積ばく露量、RF-EMF個人ばく露測定値)との関連について、横断調査と縦断調査(1年後の追跡調査)を実施した。その結果、横断調査において、行動問題は、いくつかの無線装置使用の自己申告値に関連したが、携帯電話使用のオペレータ記録値には関連しなかった;集中力はいくつかの自己申告値およびオペレータ記録値に関連した;しかし縦断調査では関連がないことが示されたことから、横断調査の知見は情報バイアスおよび「逆の因果関係」で説明される可能性が高いと報告している。

The detailed summary of this article is not available in your language or incomplete. Would you like to see a complete translation of the summary? Then please contact us →

研究の目的(著者による)

A prospective cohort study was conducted in Switzerland to investigate whether behavioural problems and concentration capacity in adolescents are affected by exposure to mobile phones and other wireless communication devices.

詳細情報

Behavioral problems of adolescents were assessed by the Strengths and Difficulties Questionnaire filled in by the adolescents and their parents. The concentration capacity of the adolescents was assessed by the standardized, computerized cognitive test battery FAKT-II (Frankfurter Adaptiver Konzentrationsleistungs-Test-II).
Three main analyses were performed: 1) A cross-sectional analysis using combined data set of baseline and follow-up data for both, exposure and outcome variables. 2) A longitudinal analysis to investigate whether cumulative exposure was followed by a change in outcome. 3) A cross-sectional analysis of the follow-up outcomes in the subsample with personal measurements.
Further results of the HERMES (Health Effects Related to Mobile phonE use in adolescentS) study are published on well-being in relation to fixed site transmitters by Schoeni et al. (2016), on memory performance by Schoeni et al. (2015) and on subjective symptoms associated with mobile phone use by Schoeni et al. (2016) .

影響評価項目/リスク推定のタイプ

リスク推定のタイプ:

ばく露

ばく露評価

調査対象集団

調査規模

タイプ
参加者 439
参加率 37 %
その他:

follow-up: 425 participants

統計学的分析方法: ( 調整: )

結論(著者による)

In the cross-sectional analyses, an association between behavioral problems of adolescents and the use of several self-reported wireless communication devices or exposure measures was observed, but not with operator-recorded mobile phone use. Concentration capacity in adolscents was associated with several self-reported and operator-recorded exposure measures. The longitudinal analyses point towards absence of associations.
The authors conclude that the lack of consistent exposure-response patterns in the longitudinal analyses suggests that behavioral problems and concentration capacity in adolescents are not affected by the use of wireless communication devices or exposure to radiofrequency electromagnetic fields. Information bias and reverse causality are likely explanations for the observed cross-sectional findings.

研究助成

関連論文