Association between mobile phone use and depressed mood in Japanese adolescents: a cross-sectional study

Ikeda, Kayoko; Nakamura, Kazutoshi

doi:10.1007/s12199-013-0373-3

Cited by 66 publications

(59 citation statements)

References 11 publications

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“…On the other hand, PIU and study and exercise habits were significantly related, but for some grades, the associations were not significant. Our study also found the same relationship pattern between duration of Internet usage and lifestyle habits (sleep, study, and exercise), suggesting that junior high-school students experience sleep deprivation because of their Internet use (Tables 4 and S2), which is consistent with previous reports 36 and supports our results regarding the association between PIU and lifestyle habits. Previous studies have also reported a relation between PIU and both academic performance 37 and physical activity, 33,36 although such analyses by grade have not been sufficient.…”

Section: Discussionsupporting

confidence: 92%

Problematic Internet use and its associations with health‐related symptoms and lifestyle habits among rural Japanese adolescents

Kojima

Sato

Akiyama

et al. 2018

Psychiatry Clin Neurosci

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Aim There have been concerns about the increase in problematic Internet use (PIU) and its impact on lifestyle habits and health‐related symptoms, given the rapid spread of smartphones. This study aimed to clarify PIU prevalence over 3 years in the same area and investigate lifestyle and health‐related factors related to PIU among junior high‐school students in Japan. Methods Each year during 2014–2016, a survey was conducted with junior high‐school students from a rural area of Japan (2014, n = 979; 2015, n = 968; 2016, n = 940). Young's Internet Addiction Test was used to assess participants’ PIU. Students scoring 40 or higher on the Internet Addiction Test were classified as showing PIU in this study. The associations between PIU and lifestyle factors (e.g., exercise habits, weekday study time, and sleep time) and health‐related symptoms (depressive symptoms and orthostatic dysregulation [OD] symptoms) were studied by logistic regression analyses. Results Over the 3 years, the prevalence of PIU was 19.9% in 2014, 15.9% in 2015, and 17.7% in 2016 without significant change. PIU was significantly associated with skipping breakfast, having a late bedtime (after midnight), and having OD symptoms among students from all grades. Sleepiness after awakening in the morning, less studying time, and depressive symptoms had significant positive associations with PIU, except among 1st grade junior high‐school students. Conclusion Our results suggest that PIU is related to decreased time spent sleeping, studying, and exercising and increased symptoms of depression and OD. Further investigations are needed to develop preventive measures for PIU.

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Section: Discussionsupporting

confidence: 92%

Problematic Internet use and its associations with health‐related symptoms and lifestyle habits among rural Japanese adolescents

Kojima

Sato

Akiyama

et al. 2018

Psychiatry Clin Neurosci

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“…Our results of the cross-sectional analyses, where we found an increase in self-reported health symptom reports in relation to various self-reported usage measures, are in line with other cross-sectional studies on symptoms, mental health or sleeping problems (Byun et al 2013;Ikeda et al 2014;Koivusilta et al 2007;Redmayne et al 2013;Roser et al 2016a;Schoeni et al 2015b;Soderqvist et al 2008). …”

Section: Discussionsupporting

confidence: 92%

“…In a cross-sectional Korean study, feeling of discomfort and dry skin were associated with the number of outgoing calls per day and dry skin, fatigue and dizziness were associated with average duration per call (Byun et al 2013). Ikeda et al (2014) found associations between mobile phone use and depressed mood or fatigue, respectively in 2785 Japanese high school students. In a representative Finnish sample of 7300 adolescents, high-mobile phone users showed more symptoms of depression and sleep disturbances than low-mobile phone users (Koivusilta et al 2007).…”

Section: Introductionmentioning

confidence: 96%

Symptoms and the use of wireless communication devices: A prospective cohort study in Swiss adolescents

Schoeni

Roser

Röösli

2017

Environmental Research

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BackgroundWe investigated whether radiofrequency electromagnetic fields (RF-EMF) from mobile phones and other wireless devices or by the wireless device use itself due to non-radiation related factors in that context are associated with an increase in health symptom reports of adolescents in Central Switzerland. Methods In a prospective cohort study, 439 study participants (participation rate: 36.8%) aged 12-17 years, completed questionnaires about their mobile and cordless phone use, their selfreported symptoms and possible confounding factors at baseline (2012/2013) and one year later (2013/2014). Operator recorded mobile phone data was obtained for a subgroup of 234 adolescents. RF-EMF dose measures considering various factors affecting RF-EMF exposure were computed for the brain and the whole body. Data were analysed using a mixed-logistic cross-sectional model and a cohort approach, where we investigated whether cumulative dose over one year was related to a new onset of a symptom between baseline and follow-up. All analyses were adjusted for relevant confounders. Results Participation rate in the follow-up was 97% (425 participants). In both analyses, crosssectional and cohort, various symptoms tended to be mostly associated with usage measures that are only marginally related to RF-EMF exposure such as the duration of data traffic on the mobile phone (e.g. OR for tiredness: 2.33; 95%CI: 1.54 to 3.52 for crosssectional analyses and OR: 2.70; 95%CI:1.52 to 4.80 for cohort analyses) and number of text messages sent per day (tiredness: OR:1.81; 95%CI:1.20 to 2.74 and OR:1.87; 95%CI:1.04 to 3.38). Outcomes were less strongly or not associated with mobile phone call duration and RF-EMF dose measures. ConclusionsStronger associations between symptoms of ill health and wireless communication device use than for RF-EMF dose measures were observed. Such a result pattern does not support a causal association between RF-EMF exposure and health symptoms of adolescents but rather suggests that other aspects of extensive media use are related to symptoms.

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“…Similar findings come from recent studies linking symptoms of mental ill health, depression and anxiety to problematic mobile phone use (Augner and Hacker 2012;Ha et al 2008;Yen et al 2009), to problematic internet use (Kaess et al 2014;Ko et al 2012) and to amount of mobile phone use which is expected to partly reflect problematic use (Ikeda and Nakamura 2014;Thomée et al 2011). Similar to these studies, our cross-sectional study cannot clarify the direction of these associations.…”

Section: Hrqol and Problematic Mobile Phone Usesupporting

confidence: 71%

Problematic mobile phone use of Swiss adolescents: is it linked with mental health or behaviour?

Roser

Schoeni

Foerster

et al. 2015

Int J Public Health

101

103

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Association between mobile phone use and depressed mood in Japanese adolescents: a cross-sectional study

Cited by 66 publications

References 11 publications

Problematic Internet use and its associations with health‐related symptoms and lifestyle habits among rural Japanese adolescents

Problematic Internet use and its associations with health‐related symptoms and lifestyle habits among rural Japanese adolescents

Symptoms and the use of wireless communication devices: A prospective cohort study in Swiss adolescents

Problematic mobile phone use of Swiss adolescents: is it linked with mental health or behaviour?

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