The aim of this study was to investigate the relationship between mobile phone use and insomnia and depression in adolescents. A cross-sectional study was conducted on 295 high school students aged 15–19 in Japan. Insomnia and depression were assessed using Athene Insomnia Scales (AIS) and the Center for Epidemiologic Studies Depression Scale (CES-D), respectively. Mobile phones were owned by 98.6% of students; 58.6% used mobile phones for over 2 h per day and 10.5% used them for over 5 h per day. Overall mobile phone use of over 5 h per day was associated with shorter sleep duration and insomnia (OR: 3.89 [95% CI: 1.21–12.49]), but not with depression. Mobile phone use of 2 h or more per day for social network services (OR: 3.63 [1.20–10.98]) and online chats (OR: 3.14 [1.42–6.95]), respectively, was associated with a higher risk of depression. Mobile phone overuse can be linked to unhealthy sleep habits and insomnia. Moreover, mobile phone overuse for social network services and online chats may contribute more to depression than the use for internet searching, playing games or viewing videos.

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BackgroundHome-visiting nurses are expected to enhance their ability to provide adequate nursing care in a relatively isolated work environment. However, the isolated work environment leads to less opportunity to share patient information. We investigated factors relevant to better patient information sharing among home-visiting nurses, which would contribute to the improved care performance of these nurses.MethodsA cross-sectional study with anonymous self-administered questionnaire was conducted between June 2015 and September 2015 in two districts of Japan. Home-visiting nurses who were working at home health care agencies were recruited. The questionnaires consisted of items on demographic data, job-related variables, communication in the workplace, the current state of patient information sharing, opportunities (or measures) of patient information sharing in the workplace, and job satisfaction. Descriptive analyses were performed on all variables, using the Chi-square test, Fisher’s exact test, or Mann-Whitney U-test. Logistic regression analyses were conducted to identify the factors associated with better information sharing, adjusting the years of home-visiting nursing experience as the control variable.ResultsOf 762 anonymous self-administered questionnaires were mailed, data from 482 participants who consented to this study and had no missing answer were analyzed. Of the total, 77.2% shared the patients’ information. Having a friendly adviser (OR = 2.51, 95% CI = 1.14–5.55, p = 0.023), attending some conferences (OR = 2.32, 95% CI = 1.12–4.82, p = 0.024), joining workshops (OR = 1.89, 95% CI = 1.15–3.10, p = 0.012), and years of home-visiting nursing experience (OR = 1.27, 95% CI = 1.03–1.57, p = 0.025) were significantly associated with sufficient sharing of the information. Nurses sufficiently sharing the information were well satisfied with their job (OR = 5.38, 95% CI =3.19–9.09, p < 0.001) and highly preferred a career in home-visiting nursing care (OR = 5.62, 95% CI =3.41–9.27, p < 0.001).ConclusionsThe results suggested that having opportunities to discuss face-to-face such as at conferences and workshops as well as promoting good relationships among colleagues in the workplace will contribute to better information sharing among home-visiting nurses. Home-visiting nurses with less years of experience need to be supported in order to share the information sufficiently. Additionally, sufficient information sharing was also associated with job satisfaction and preference for home-visiting nursing care, which might lead to job retention for home-visiting nurses.Electronic supplementary materialThe online version of this article (10.1186/s12913-019-3924-5) contains supplementary material, which is available to authorized users.

Abstract:The aim of this study was to investigate the relationship between mobile phone use and insomnia and depression in adolescents. A cross-sectional study was conducted on 295 high school students aged 15-19 in Japan. Insomnia and depression were assessed using Athene Insomnia Scales (AIS) and the Center for Epidemiologic Studies Depression Scale (CES-D), respectively. Mobile phones were owned by 98.6% of students; 58.6% used mobile phones for over 2 h per day and 10.5% used them for over 5 h per day. Overall mobile phone use of over 5 h per day was associated with shorter sleep duration and insomnia (OR: 3.89 [95% CI: 1.21-12.49]), but not with depression. Mobile phone use of 2 h or more per day for social network services (OR: 3.63 [1.20-10.98]) and online chats (OR: 3.14 [1.42-6.95]), respectively, was associated with a higher risk of depression. Mobile phone overuse can be linked to unhealthy sleep habits and insomnia. Moreover, mobile phone overuse for social network services and online chats may contribute more to depression than the use for internet searching, playing games or viewing videos.