Internet overuse and excessive daytime sleepiness in adolescents
Version of Record online: 25 MAR 2009
© 2009 The Authors. Journal compilation © 2009 Japanese Society of Psychiatry and Neurology
Psychiatry and Clinical Neurosciences
Volume 63, Issue 4, pages 455–462, August 2009
How to Cite
Choi, K., Son, H., Park, M., Han, J., Kim, K., Lee, B. and Gwak, H. (2009), Internet overuse and excessive daytime sleepiness in adolescents. Psychiatry and Clinical Neurosciences, 63: 455–462. doi: 10.1111/j.1440-1819.2009.01925.x
- Issue online: 16 JUL 2009
- Version of Record online: 25 MAR 2009
- Received 16 March 2008; revised 4 August 2008; accepted 11 November 2008.
- excessive daytime sleepiness;
- Internet overuse;
Aim: The purpose of this study was to examine the association of Internet overuse with excessive daytime sleepiness (EDS).
Methods: A total of 2336 high school students in South Korea (boys, 57.5%; girls, 42.5%) completed the structured questionnaire. The severity of Internet addiction was evaluated using Young's Internet addiction test.
Results: The proportions of boys who were classified as Internet addicts and possible Internet addicts were 2.5% and 53.7%, respectively. For girls, the corresponding proportions were 1.9% and 38.9%, respectively. The prevalence of EDS was 11.2% (boys, 11.2%; girls, 11.1%). When Internet addicts were compared with non-addicts, they consisted of more boys, drank alcohol more, and considered their own health condition as poor. But smoking was not related with Internet addiction. The prevalence rate of EDS for Internet addicts was 37.7%, whereas that for possible Internet addicts and non-addicts was 13.9% and 7.4%, respectively. The prevalence of insomnia, witnessed snoring, apnea, teeth grinding, and nightmares was highest in Internet addicts, middle in possible addicts, and lowest in non-addicts. With adjustment for duration of Internet use, duration of sleep time, age, gender, smoking, taking painkillers due to headache, insomnia symptoms, witnessed apnea, and nightmares, the odds of EDS were 5.2-fold greater (95% confidence interval [CI]: 2.7–10.2) in Internet addicts and 1.9-fold greater (95%CI: 1.4–2.6) in possible Internet addicts compared to non-addicts.
Conclusion: Internet addiction is strongly associated with EDS in adolescents. Clinicians should consider examining Internet addiction in adolescent cases of EDS.