https://academic.oup.com/jpepsy/article/37/9/1023
Norihito Oshima, MD, Atsushi Nishida, PhD, Shinji Shimodera, MD, PhD, Mamoru Tochigi, MD, PhD, Shuntaro Ando, MD, PhD, Syudo Yamasaki, PhD, Yuji Okazaki, MD, Tsukasa Sasaki, MD, PhD
Journal of Pediatric Psychology, Volume 37, Issue 9, October 2012, Pages 1023–1030,
Abstract
Objective To study association between nocturnal mobile phone use and mental health, suicidal feelings, and self-injury in adolescents.
Methods Associations of mobile phone use after lights out with mental health, suicidal feelings, and self-injury were cross-sectionally examined in 17,920 adolescents using a self-report questionnaire. A series of logistic regression analyses were separately conducted for early (grades 7–9) and late (grades 10–12) adolescents.
Results Sleep length was significantly associated with the mobile phone use only in early adolescents. Logistic regression showed significant associations of the nocturnal mobile phone use with poor mental health, suicidal feelings, and self-injury after controlling for sleep length and other confounders.
Conclusions Mobile phone use after lights out may be associated with poor mental health, suicidal feelings, and self-injury in both early and late adolescents. Association between reduced sleep and the mobile phone use was confined to early adolescents.
Extract : “The present study investigated the association of nocturnal mobile-phone use with suicidal feelings and self-injury in adolescents. Mobile phone use after lights out was associated with poor mental health, suicidal feelings, and self-harm in both early and late adolescents. The association remained statistically significant after controlling for sleep length. To our knowledge, this is the first study to observe an association of nocturnal mobile phone use with suicidal feelings and self-injury. Mobile phone use after lights out could be a target in health education and interventions to improve mental health and to reduce suicidal feelings and self-injury in adolescents.”
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