Prevalence, correlates, psychiatric comorbidities, and suicidality in a community population with problematic Internet use.

We examined the prevalence, correlates, and psychiatric comorbidities of community-dwelling subjects with problematic Internet use (PIU). In an epidemiological survey of mental disorders among Korean adults conducted in 2006, 6510 subjects (aged 18-64 years) completed the Korean version of the Composite International Diagnostic Interview for DSM-IV psychiatric disorders; Diagnostic Interview Schedule exploring pathological gambling; Adult ADHD Self-Report Scale-Version 1.1 Screener; questionnaire for sleep disturbances; and questionnaire for suicidal ideations, plans, and attempts. Young's Internet Addiction Test was administered to 3212 individuals who had used the Internet within one month before the interviews in order to identify problematic Internet users (cutoff >39). The prevalence of PIU was 9.3% in the general population of South Korea. Being male, younger, never married, or unemployed were all associated with increased risks of PIU. Significant positive associations were observed between PIU and nicotine use disorders, alcohol use disorders, mood disorders, anxiety disorders, somatoform disorders, pathological gambling, adult type ADHD symptoms, sleep disturbances, suicide ideas and suicide plans compare to subjects without PIU, after controlling for socio-demographic variables. These findings suggest that careful evaluation and management of such psychiatric disorders is needed for individuals with PIU.

Kim BS ，Chang SM ，Park JE ，Seong SJ ，Won SH ，Cho MJ ... -  《-》

Prevalence, clinical correlations, comorbidities, and suicidal tendencies in pathological Korean gamblers: results from the Korean Epidemiologic Catchment Area Study.

Park S ，Cho MJ ，Jeon HJ ，Lee HW ，Bae JN ，Park JI ，Sohn JH ，Lee YR ，Lee JY ，Hong JP ... -  《-》

Problematic internet use and psychiatric co-morbidity in a population of Japanese adult psychiatric patients.

de Vries HT ，Nakamae T ，Fukui K ，Denys D ，Narumoto J ... -  《BMC Psychiatry》

Prevalence, correlates, and comorbidities of adult ADHD symptoms in Korea: results of the Korean epidemiologic catchment area study.

We examined the prevalence, correlates, and comorbidities of adult attention-deficit hypersensitivity disorder (ADHD) symptoms in a Korean community using data from the National Epidemiological Survey of Psychiatric Disorders in Korea conducted in 2006. A total of 6081 subjects aged 18 to 59 years participated in this study. Diagnostic assessments were based on the Adult ADHD Self-Report Scale Screener and Composite International Diagnostic Interview administered by lay interviewers. The frequencies of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) disorders, sleep disturbances, and suicidal tendency were compared in the ADHD and non-ADHD groups. Odds ratios and significance levels were calculated. The 6 month prevalence of adult ADHD symptoms was 1.1%. Associations between ADHD symptoms and alcohol abuse/dependence, nicotine dependence, mood disorders, major depressive disorder, bipolar disorder, anxiety disorders, obsessive-compulsive disorder, post-traumatic stress disorder, social phobia, specific phobia, somatoform disorder, sleep disturbances, and suicidality were overwhelmingly positive and significant (P<0.05), after controlling for gender and age. Adult ADHD symptoms are highly associated with substance abuse, mood and anxiety disorders, somatoform disorders, sleep disturbances and suicidality, suggesting that clinicians should carefully evaluate and treat such psychiatric disorders in adults with ADHD symptoms.

Park S ，Cho MJ ，Chang SM ，Jeon HJ ，Cho SJ ，Kim BS ，Bae JN ，Wang HR ，Ahn JH ，Hong JP ... -  《-》

Prevalence and patterns of psychiatric disorders in referred adolescents with Internet addiction.

To investigate prevalence and patterns of psychiatric disorders in young subjects with Internet addiction (IA). Subjects were taken from a sample of patients, aged 10-18 years old, referred to Istanbul Medical Faculty, Child and Adolescent Psychiatry Department due to a variety of behavioral and emotional problems alongside problematic Internet use. Inclusion criteria included IQ ≥70 and score ≥80 on Young's Internet Addiction Scale (YIAS). Psychiatric comorbidity was assessed using the Turkish version of the Schedule for Affective Disorders and Schizophrenia for School Age Children-Present and Lifetime Version. Subjects were 45 boys (75%) and 15 girls (25%) with an age range of 10-18 years old (mean age, 13.38 ± 1.79 years). A total of 60% (n = 36) had been using Internet for ≥5 years. Mean hours/week spent on the Internet was 53.7 (range, 30-105 h) and the average YIAS score was 85. All subjects (100%) had at least one and 88.3% (n = 53) had at least two comorbid psychiatric disorders. The frequency of diagnostic groups were as follows: behavioral disorder, n = 52 (86.7%); anxiety disorder, n = 43 (71.7%); mood disorder, n = 23 (38.3%); elimination disorder, n = 16 (26.7%); tic disorder, n = 10 (16.7%); and substance use disorder, n = 4 (6.7%). The most common psychiatric disorders were attention-deficit hyperactivity disorder (n = 53; 83.3%), social phobia (n = 21; 35.0%) and major depressive disorder (n = 18; 30.0%). High rates of psychiatric comorbidity, particularly behavioral, anxiety and mood disorders were found in young subjects with IA. Because the presence of psychiatric disorders may affect the management /prognosis of IA, assessment should include that for other psychiatric disorders.

Bozkurt H ，Coskun M ，Ayaydin H ，Adak I ，Zoroglu SS ... -  《-》