Smartphone addiction risk and daytime sleepiness in Korean adolescents

Jee Eun Chung, Soo An Choi, Ki Tai Kim, Jeong Yee, Joo Hee Kim, Jin Won Seong, Jong Mi Seong, Ju Young Kim, Kyung Eun Lee, Hye Sun Gwak

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


Aim: Smartphone overuse can cause not only mobility problems in the wrists, fingers and neck but also interference with sleep habits. However, research on smartphone addiction and sleep disturbances is scarce. Therefore, we aimed to investigate daytime sleepiness in association with smartphone addiction risk in Korean adolescents. Methods: A cross-sectional survey method was used in this study. The Pediatric Daytime Sleepiness Scale was used to assess daytime sleepiness, and the Korean Smartphone Addiction Proneness Scale index was used to evaluate the degree of risk for smartphone addiction. Results: The analyses were performed in 1796 adolescents using smartphones, including 820 boys and 976 girls. The at-risk smartphone users made up 15.1% of boys and 23.9% of girls. Our multivariate analyses demonstrated that students who were female, consumed alcohol, had lower academic performance, did not feel refreshed in the morning and initiated sleep after 12 am were at a significantly higher risk of smartphone addiction. The at-risk smartphone user group was independently associated with the upper quartile Pediatric Daytime Sleepiness Scale score in students with the following factors: Female gender, alcohol consumption, poor self-perceived health level, initiating sleep after 12 am, longer time taken to fall asleep and duration of night sleep less than 6 h. Conclusions: The quality of sleep in adolescence affects growth, emotional stability and learning skills. Therefore, the management of smartphone addiction seems to be essential for proper sleeping habits. There is a critical need to develop a means of preventing smartphone addiction on a social level.

Original languageEnglish
Pages (from-to)800-806
Number of pages7
JournalJournal of Paediatrics and Child Health
Issue number7
StatePublished - Jul 2018

Bibliographical note

Publisher Copyright:
© 2018 Paediatrics and Child Health Division (The Royal Australasian College of Physicians)


  • Korean Smartphone Addiction Proneness Scale
  • Pediatric Daytime Sleepiness Scale
  • adolescent
  • cross-sectional survey
  • daytime sleepiness
  • smartphone addiction


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