A nationwide survey of the prevalence and psychosocial correlates of internet addictive disorders in Taiwan.

Abstract

The American Psychiatric Association has published the diagnostic criteria of Internet Gaming Disorder (IGD) in the 5th Diagnostic and Statistical Manual of Mental Disorders (DSM-5) for further studies to clarify IGD and related concepts of internet addiction. The study aims to investigate the prevalence and psychosocial correlates of internet addictive disorder (IAD) in the general population using the framework of IGD criteria. A nationwide survey was conducted using a computer-assisted telephone interview of residents aged 15 and older selected by a stratified proportional randomizing method. The questionnaire comprised socio-demographic information, 9-items IAD (IAD-9) for identification of IGD and non-gaming IAD, the 5-item Brief Symptom Rating Scale, and questions about internet use and suicidal ideation. Among 2147 respondents (50.4% females), the one-year prevalence of IAD was 1.9% (1.2% for IGD and 0.7% for non-gaming IAD). People with IAD were characterized as: younger, unemployed or students, under recent psychological distress, with recent and lifetime suicidal ideation, and engaging in regular multiple online activities including gaming, shopping or video-watching. Logistic regression revealed that age and psychopathology including insomnia, depression and inferiority were significant predictors of IAD. High prevalence of psychiatric morbidity (27.5%) and lifetime suicidal ideation (34.2%) accompanied with very low psychiatric treatment rate were also identified. Age and psychopathology were identified as major determinants of IAD. The IGD criteria in DMS-5 is applicable to identify the internet addictive problems that enhances early engagement for high-risk populations across the ages.