1.Structural Validity of the Diagnostic Interview for Internet Addiction Scale for Clinical Samples in Korean Children and Adolescents: Exploratory and Confirmatory Factor Analysis
Mi-Sun LEE ; Jung-Seok CHOI ; Yong-Sil KWEON ; Soo-Young BHANG
Psychiatry Investigation 2025;22(2):167-174
Objective:
This study aimed to validate the reliability and validity of the Diagnostic Interview for the Internet Addiction Scale (DIA) among Korean children and adolescents in the clinical setting.
Methods:
We collected the clinical data from university hospitals in South Korea and 194 children and adolescents (aged 7–18 years) completed the questionnaire. The content validity was conducted on 10 items of the DIA and an internal consistency test was performed for the verification of reliability.
Results:
Participants on average, aged 13.17 years (standard deviation=2.46), and 75.3% (n=146) were boys. The DIA was highly correlated with the scores of the Korean scale for Internet addiction for adolescents, Young’s Internet Addiction Test, Internet addiction proneness scale for children and adolescents. The overall sampling suitability of the 10-item scale was tested using the Kaiser–Meyer–Olkin, resulting in a high value of 0.861. The DIA revealed a two-factor structure and the Cronbach’s alpha correlation coefficient for the total scale was 0.806. Confirmatory factor analysis showed an acceptable model fit (root-mean square error of approximation=0.058, comparative fit index=0.950, and Tucker-Lewis Index=0.919).
Conclusion
The DIA may suggest in-depth-scale examinations of the factors that influence Internet addiction. We may expect that DIA would be used efficiently for the diagnosing of Internet addiction and further studies for the assessment.
2.Structural Validity of the Diagnostic Interview for Internet Addiction Scale for Clinical Samples in Korean Children and Adolescents: Exploratory and Confirmatory Factor Analysis
Mi-Sun LEE ; Jung-Seok CHOI ; Yong-Sil KWEON ; Soo-Young BHANG
Psychiatry Investigation 2025;22(2):167-174
Objective:
This study aimed to validate the reliability and validity of the Diagnostic Interview for the Internet Addiction Scale (DIA) among Korean children and adolescents in the clinical setting.
Methods:
We collected the clinical data from university hospitals in South Korea and 194 children and adolescents (aged 7–18 years) completed the questionnaire. The content validity was conducted on 10 items of the DIA and an internal consistency test was performed for the verification of reliability.
Results:
Participants on average, aged 13.17 years (standard deviation=2.46), and 75.3% (n=146) were boys. The DIA was highly correlated with the scores of the Korean scale for Internet addiction for adolescents, Young’s Internet Addiction Test, Internet addiction proneness scale for children and adolescents. The overall sampling suitability of the 10-item scale was tested using the Kaiser–Meyer–Olkin, resulting in a high value of 0.861. The DIA revealed a two-factor structure and the Cronbach’s alpha correlation coefficient for the total scale was 0.806. Confirmatory factor analysis showed an acceptable model fit (root-mean square error of approximation=0.058, comparative fit index=0.950, and Tucker-Lewis Index=0.919).
Conclusion
The DIA may suggest in-depth-scale examinations of the factors that influence Internet addiction. We may expect that DIA would be used efficiently for the diagnosing of Internet addiction and further studies for the assessment.
3.Structural Validity of the Diagnostic Interview for Internet Addiction Scale for Clinical Samples in Korean Children and Adolescents: Exploratory and Confirmatory Factor Analysis
Mi-Sun LEE ; Jung-Seok CHOI ; Yong-Sil KWEON ; Soo-Young BHANG
Psychiatry Investigation 2025;22(2):167-174
Objective:
This study aimed to validate the reliability and validity of the Diagnostic Interview for the Internet Addiction Scale (DIA) among Korean children and adolescents in the clinical setting.
Methods:
We collected the clinical data from university hospitals in South Korea and 194 children and adolescents (aged 7–18 years) completed the questionnaire. The content validity was conducted on 10 items of the DIA and an internal consistency test was performed for the verification of reliability.
Results:
Participants on average, aged 13.17 years (standard deviation=2.46), and 75.3% (n=146) were boys. The DIA was highly correlated with the scores of the Korean scale for Internet addiction for adolescents, Young’s Internet Addiction Test, Internet addiction proneness scale for children and adolescents. The overall sampling suitability of the 10-item scale was tested using the Kaiser–Meyer–Olkin, resulting in a high value of 0.861. The DIA revealed a two-factor structure and the Cronbach’s alpha correlation coefficient for the total scale was 0.806. Confirmatory factor analysis showed an acceptable model fit (root-mean square error of approximation=0.058, comparative fit index=0.950, and Tucker-Lewis Index=0.919).
Conclusion
The DIA may suggest in-depth-scale examinations of the factors that influence Internet addiction. We may expect that DIA would be used efficiently for the diagnosing of Internet addiction and further studies for the assessment.
4.Structural Validity of the Diagnostic Interview for Internet Addiction Scale for Clinical Samples in Korean Children and Adolescents: Exploratory and Confirmatory Factor Analysis
Mi-Sun LEE ; Jung-Seok CHOI ; Yong-Sil KWEON ; Soo-Young BHANG
Psychiatry Investigation 2025;22(2):167-174
Objective:
This study aimed to validate the reliability and validity of the Diagnostic Interview for the Internet Addiction Scale (DIA) among Korean children and adolescents in the clinical setting.
Methods:
We collected the clinical data from university hospitals in South Korea and 194 children and adolescents (aged 7–18 years) completed the questionnaire. The content validity was conducted on 10 items of the DIA and an internal consistency test was performed for the verification of reliability.
Results:
Participants on average, aged 13.17 years (standard deviation=2.46), and 75.3% (n=146) were boys. The DIA was highly correlated with the scores of the Korean scale for Internet addiction for adolescents, Young’s Internet Addiction Test, Internet addiction proneness scale for children and adolescents. The overall sampling suitability of the 10-item scale was tested using the Kaiser–Meyer–Olkin, resulting in a high value of 0.861. The DIA revealed a two-factor structure and the Cronbach’s alpha correlation coefficient for the total scale was 0.806. Confirmatory factor analysis showed an acceptable model fit (root-mean square error of approximation=0.058, comparative fit index=0.950, and Tucker-Lewis Index=0.919).
Conclusion
The DIA may suggest in-depth-scale examinations of the factors that influence Internet addiction. We may expect that DIA would be used efficiently for the diagnosing of Internet addiction and further studies for the assessment.
5.Structural Validity of the Diagnostic Interview for Internet Addiction Scale for Clinical Samples in Korean Children and Adolescents: Exploratory and Confirmatory Factor Analysis
Mi-Sun LEE ; Jung-Seok CHOI ; Yong-Sil KWEON ; Soo-Young BHANG
Psychiatry Investigation 2025;22(2):167-174
Objective:
This study aimed to validate the reliability and validity of the Diagnostic Interview for the Internet Addiction Scale (DIA) among Korean children and adolescents in the clinical setting.
Methods:
We collected the clinical data from university hospitals in South Korea and 194 children and adolescents (aged 7–18 years) completed the questionnaire. The content validity was conducted on 10 items of the DIA and an internal consistency test was performed for the verification of reliability.
Results:
Participants on average, aged 13.17 years (standard deviation=2.46), and 75.3% (n=146) were boys. The DIA was highly correlated with the scores of the Korean scale for Internet addiction for adolescents, Young’s Internet Addiction Test, Internet addiction proneness scale for children and adolescents. The overall sampling suitability of the 10-item scale was tested using the Kaiser–Meyer–Olkin, resulting in a high value of 0.861. The DIA revealed a two-factor structure and the Cronbach’s alpha correlation coefficient for the total scale was 0.806. Confirmatory factor analysis showed an acceptable model fit (root-mean square error of approximation=0.058, comparative fit index=0.950, and Tucker-Lewis Index=0.919).
Conclusion
The DIA may suggest in-depth-scale examinations of the factors that influence Internet addiction. We may expect that DIA would be used efficiently for the diagnosing of Internet addiction and further studies for the assessment.
6.Risk Factors for Multiple Suicide Attempts in Adolescents From 10Years Suicide Repository
Sunghwan KIM ; Eun-Young YANG ; Kyoung Ho CHOI ; Hae Kook LEE ; Yong-Sil KWEON ; Kyoung-Uk LEE
Journal of Korean Medical Science 2024;39(46):e289-
Background:
While there are many studies on adolescents’ suicide attempts in the western countries, studies on adolescent suicide in South Korea are relatively scarce. We compared demographical and clinical variables between the first and multiple suicide attempters and examined potential risk factors predicting multiple suicide attempts.
Methods:
Two hundred forty-eight suicide attempters aged from 11 to 19 years old who visited emergency department of Uijeongbu St. Mary’s Hospital, South Korea were recruited and divided into two groups: first attempter (n = 139, 56%) and multiple attempter (n = 109, 44%). A psychiatric interview with the Brief Emergency Room Suicide Risk Assessment were administered to all participants, and univariate analyses to compare characteristics of the two group and a multivariable logistic regression analysis to predict multiple suicidal attempts were performed.
Results:
Our results showed multiple suicide attempters were mostly female (78%), more severe in psychopathology (e.g., higher rate of psychiatric family history, diagnosis of axis I history, history of major depressive disorder, higher feeling of hopelessness/helplessness) and suicidality (e.g., repetitive/severe/continuous suicide ideation, lower regret for suicide attempt). Moreover, multiple suicide attempters were lower in psychiatric resources, such as lower personal achievement, lower ability to control emotion, and less insight. Multivariate logistic regression analysis showed that suicide ideation severity (odds ratio [OR], 2.30;P = 0.004), past history of axis I diagnosis (especially major depressive disorder; OR, 2.55; P = 0.002), and the use of “cutting” (OR, 2.85; P = 0.001) predicted multiple suicide attempts.
Conclusion
The present study suggests that multiple suicide attempters tend to have more severe clinical profiles than the first suicide attempters. Intervention for depression and selfmutilation behavior of suicide attempters may be important in preventing multiple suicide attempts of adolescents.
7.Risk Factors for Multiple Suicide Attempts in Adolescents From 10Years Suicide Repository
Sunghwan KIM ; Eun-Young YANG ; Kyoung Ho CHOI ; Hae Kook LEE ; Yong-Sil KWEON ; Kyoung-Uk LEE
Journal of Korean Medical Science 2024;39(46):e289-
Background:
While there are many studies on adolescents’ suicide attempts in the western countries, studies on adolescent suicide in South Korea are relatively scarce. We compared demographical and clinical variables between the first and multiple suicide attempters and examined potential risk factors predicting multiple suicide attempts.
Methods:
Two hundred forty-eight suicide attempters aged from 11 to 19 years old who visited emergency department of Uijeongbu St. Mary’s Hospital, South Korea were recruited and divided into two groups: first attempter (n = 139, 56%) and multiple attempter (n = 109, 44%). A psychiatric interview with the Brief Emergency Room Suicide Risk Assessment were administered to all participants, and univariate analyses to compare characteristics of the two group and a multivariable logistic regression analysis to predict multiple suicidal attempts were performed.
Results:
Our results showed multiple suicide attempters were mostly female (78%), more severe in psychopathology (e.g., higher rate of psychiatric family history, diagnosis of axis I history, history of major depressive disorder, higher feeling of hopelessness/helplessness) and suicidality (e.g., repetitive/severe/continuous suicide ideation, lower regret for suicide attempt). Moreover, multiple suicide attempters were lower in psychiatric resources, such as lower personal achievement, lower ability to control emotion, and less insight. Multivariate logistic regression analysis showed that suicide ideation severity (odds ratio [OR], 2.30;P = 0.004), past history of axis I diagnosis (especially major depressive disorder; OR, 2.55; P = 0.002), and the use of “cutting” (OR, 2.85; P = 0.001) predicted multiple suicide attempts.
Conclusion
The present study suggests that multiple suicide attempters tend to have more severe clinical profiles than the first suicide attempters. Intervention for depression and selfmutilation behavior of suicide attempters may be important in preventing multiple suicide attempts of adolescents.
8.Risk Factors for Multiple Suicide Attempts in Adolescents From 10Years Suicide Repository
Sunghwan KIM ; Eun-Young YANG ; Kyoung Ho CHOI ; Hae Kook LEE ; Yong-Sil KWEON ; Kyoung-Uk LEE
Journal of Korean Medical Science 2024;39(46):e289-
Background:
While there are many studies on adolescents’ suicide attempts in the western countries, studies on adolescent suicide in South Korea are relatively scarce. We compared demographical and clinical variables between the first and multiple suicide attempters and examined potential risk factors predicting multiple suicide attempts.
Methods:
Two hundred forty-eight suicide attempters aged from 11 to 19 years old who visited emergency department of Uijeongbu St. Mary’s Hospital, South Korea were recruited and divided into two groups: first attempter (n = 139, 56%) and multiple attempter (n = 109, 44%). A psychiatric interview with the Brief Emergency Room Suicide Risk Assessment were administered to all participants, and univariate analyses to compare characteristics of the two group and a multivariable logistic regression analysis to predict multiple suicidal attempts were performed.
Results:
Our results showed multiple suicide attempters were mostly female (78%), more severe in psychopathology (e.g., higher rate of psychiatric family history, diagnosis of axis I history, history of major depressive disorder, higher feeling of hopelessness/helplessness) and suicidality (e.g., repetitive/severe/continuous suicide ideation, lower regret for suicide attempt). Moreover, multiple suicide attempters were lower in psychiatric resources, such as lower personal achievement, lower ability to control emotion, and less insight. Multivariate logistic regression analysis showed that suicide ideation severity (odds ratio [OR], 2.30;P = 0.004), past history of axis I diagnosis (especially major depressive disorder; OR, 2.55; P = 0.002), and the use of “cutting” (OR, 2.85; P = 0.001) predicted multiple suicide attempts.
Conclusion
The present study suggests that multiple suicide attempters tend to have more severe clinical profiles than the first suicide attempters. Intervention for depression and selfmutilation behavior of suicide attempters may be important in preventing multiple suicide attempts of adolescents.
9.Risk Factors for Multiple Suicide Attempts in Adolescents From 10Years Suicide Repository
Sunghwan KIM ; Eun-Young YANG ; Kyoung Ho CHOI ; Hae Kook LEE ; Yong-Sil KWEON ; Kyoung-Uk LEE
Journal of Korean Medical Science 2024;39(46):e289-
Background:
While there are many studies on adolescents’ suicide attempts in the western countries, studies on adolescent suicide in South Korea are relatively scarce. We compared demographical and clinical variables between the first and multiple suicide attempters and examined potential risk factors predicting multiple suicide attempts.
Methods:
Two hundred forty-eight suicide attempters aged from 11 to 19 years old who visited emergency department of Uijeongbu St. Mary’s Hospital, South Korea were recruited and divided into two groups: first attempter (n = 139, 56%) and multiple attempter (n = 109, 44%). A psychiatric interview with the Brief Emergency Room Suicide Risk Assessment were administered to all participants, and univariate analyses to compare characteristics of the two group and a multivariable logistic regression analysis to predict multiple suicidal attempts were performed.
Results:
Our results showed multiple suicide attempters were mostly female (78%), more severe in psychopathology (e.g., higher rate of psychiatric family history, diagnosis of axis I history, history of major depressive disorder, higher feeling of hopelessness/helplessness) and suicidality (e.g., repetitive/severe/continuous suicide ideation, lower regret for suicide attempt). Moreover, multiple suicide attempters were lower in psychiatric resources, such as lower personal achievement, lower ability to control emotion, and less insight. Multivariate logistic regression analysis showed that suicide ideation severity (odds ratio [OR], 2.30;P = 0.004), past history of axis I diagnosis (especially major depressive disorder; OR, 2.55; P = 0.002), and the use of “cutting” (OR, 2.85; P = 0.001) predicted multiple suicide attempts.
Conclusion
The present study suggests that multiple suicide attempters tend to have more severe clinical profiles than the first suicide attempters. Intervention for depression and selfmutilation behavior of suicide attempters may be important in preventing multiple suicide attempts of adolescents.
10.Depression, Anxiety and Associated Factors Among Korean Adolescent Students During COVID-19
Da-young JUNG ; Kyung Hee YOON ; Myeong-yeon JO ; Hyun-joo JEONG ; Yong-Sil KWEON
Journal of the Korean Academy of Child and Adolescent Psychiatry 2024;35(4):230-242
Objectives:
Depression and anxiety are emotional difficulties that are common among adolescents. Adolescents suffering from depression and anxiety can exhibit problems such as antisocial behavior, aggression, and academic slump. This study aimed to explore the factors influencing adolescents’ depression and anxiety during the coronavirus disease 2019 (COVID-19) pandemic.
Methods:
This study examined the data from an online student health survey conducted by the Ministry of Education in 2022. The survey participants were 131194 students ranging from the first grade of middle school to the third grade of high school. The influence of each variable on depression and anxiety was examined.
Results:
Factors that predicted depression and anxiety were sex (female), grade level (higher), financial difficulties (existing or unknown), physical activity (higher), sleep time (shorter), media usage time (higher), family/friends relationship (worse), and change in the health status of family, friends, and oneself due to COVID-19 (worse).
Conclusion
These results may help identify patterns of depression and anxiety among adolescents caused by COVID-19 and maximize the intervention effect.

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