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Updated: Aug 28, 2025

Measuring the Switch Cost of Smartphone Use While Walking
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Association between Smartphone Addiction and Suicide.

Oyuntuya Shinetsetseg1,2, Yun Hwa Jung1,2, Yu Shin Park1,2

  • 1Department of Public Health, Graduate School, Yonsei University, Seoul 03722, Korea.

International Journal of Environmental Research and Public Health
|September 23, 2022
PubMed
Summary

Adolescent smartphone addiction significantly increases the risk of suicidal thoughts and attempts. This study highlights the mental health risks associated with excessive smartphone use in Korean youth.

Keywords:
addictionadolescence mental healthcell phonedepressioninternet addictionself-harmsmartphone addictionsmartphone over-dependencesuicide attemptsuicide ideation

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Area of Science:

  • Psychiatry
  • Public Health
  • Adolescent Health

Background:

  • Smartphone overuse is a growing concern among adolescents.
  • Understanding the link between smartphone addiction and mental health is crucial for early intervention.

Purpose of the Study:

  • To investigate the association between smartphone overdependence and suicidal ideation and attempts in Korean adolescents.
  • To quantify the risk of mental health issues linked to varying levels of smartphone addiction.

Main Methods:

  • Utilized data from the 2020 Korea Youth Risk Behavior Web-based Survey.
  • Categorized 54,948 adolescents into general, potential-risk, and high-risk smartphone user groups based on addiction scores.
  • Employed multiple logistic regression to analyze the relationship between smartphone addiction and suicidal behaviors.

Main Results:

  • Adolescents with potential-risk smartphone use had 1.50 times higher odds of suicidal ideation.
  • High-risk smartphone users exhibited 2.49 times higher odds of suicidal ideation and 1.87 times higher odds of suicide attempts compared to general users.

Conclusions:

  • Adolescent smartphone addiction is a significant risk factor for suicidal ideation and attempts.
  • Parents and social workers must recognize the mental health implications of excessive smartphone use in adolescents.