Citation

Oshima N, Nishida A, Shimodera S, Tochigi M, Ando S, Yamasaki S, Okazaki Y, Sasaki T. J. Pediatr. Psychol. 2012; 37(9): 1023-1030.

Affiliation

Office for Mental Health Support, Division for Counseling and Support, The University of Tokyo, Department of Psychiatry & Behavioral Science, Tokyo Metropolitan Institute of Medical Science, Department of Neuropsychiatry, Kochi Medical School, Kochi University, Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo Metropolitan Matsuzawa Hospital, and Laboratory of Health Education, Graduate School of Education, The University of Tokyo.

Copyright

(Copyright © 2012, Oxford University Press)

DOI

10.1093/jpepsy/jss072

PMID

22728900

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.

Language: en