ID Number		2423
Study Type		Epidemiology
Model		Population-based cross-sectional study of mobile phone use and inattention in Chinese adolescents.
Details		AUTHORS' ABSTRACT: Zheng et al. 2014 (IEEE #5788): Background: The dramatic growth of mobile phone (MP) use among young people has increased interest in its possible health hazards in this age group. The aim of this cross-sectional study was to investigate the association between MP use and inattention in adolescents. Methods: A total of 7720 middle school students were involved in this cross-sectional study. Inattention was assessed as defined for the Attention Deficit component of Attention deficit/Hyperactivity disorder (ADHD) by the Diagnostic and Statistical Manual of Mental Disorders (4th ed., text rev. [DSM-IV-TR]). The demographic characteristics and information on MP use were included in the questionnaire. Chi-square tests and logistic regression models were used to analyze the data. Results: In total, 7102 (91.99%) valid questionnaires were obtained. After adjusted for confounders, inattention in adolescents was significantly associated with MP ownership, the time spent on entertainment on MP per day, the position of the MP during the day and the mode of the MP at night. The strongest association between inattention and the time spent on the MP was among students who spent more than 60 minutes per day playing on their MP. Conclusions: Our study shows some associations between MP use and inattention in Chinese adolescents. Decreasing MP usage to less than 60 minutes per day may help adolescents to stay focused and centered. AUTHORS' ABSTRACT: Zheng et al. 2015 (IEEE #6038): Objectives: In the past decade, the mobile phone (MP) has become extremely popular among children and the average age at which children own their first MP has decreased. The potential health effects of childrens exposure to MP have been the subject of widespread public concern. The aim of our study is to investigate the associations between MP use and wellbeing in children. Design: Cross-sectional study. Setting: The questionnaires were completed in class with items regarding demographics, MP usage, self reported well-being (symptoms were taken from the questionnaire of the HBSC survey) and possible confounding factors between October 2011 and May 2012 in Chongqing, China. Data were analysed using Ç2 tests and logistic regression models. Participants: Among the 793 children invited to participate, 781 returned the questionnaires. Results: In total, 746 (94.1%) valid questionnaires were received. Fatigue was significantly associated with the years of MP usage (OR 1.85; 95% CI 1.07 to 3.22) and the daily duration of MP calls (OR 2.98; 95% CI 1.46 to 6.12). Headache was significantly associated with the daily duration of MP calls (OR 2.85; 95% CI 1.23 to 6.57). However, after adjusting for confounders only, the association between fatigue and MP usage remained statistically significant. There was no significant association between MP use and other physical symptoms in children. Conclusions: The present study indicated that there was a consistent significant association between MP use and fatigue in children. Further in-depth research is needed to explore the potential health effects of MP use in children.
Findings		Effects
Status		Completed With Publication
Principal Investigator		Third Military Med U, Chongqing, China
Funding Agency		China Nat Basic Res Program (Nat 973 Program)
Country		CHINA
References		Zheng, F et al. BMC Public Health., (2014) 14:(7 pages)- Zheng, F et al. BMJ Open., (2015) 5(5):e007302-(8 pages) Gao, P et al. Frontiers in Public Health. , (2020) 8:175-doi: 10.3389/fpubh.2020.00175
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