A Closer Look at Adolescent Mental Health: Prevalence of Internalizing and Externalizing Problems Across Educational and Gender Groups.

Authors

Farzin Malakooti, Ahmad Khamesan, Hadi Samadieh, Mohammad Hossein Sorbi

Published in

Iranian journal of psychiatry. Volume 21. Issue 2. Pages 202-211.

Abstract

Objective: Given the importance of mental health during adolescence and the considerable prevalence of psychological problems among this age group, along with the limited epidemiological data available in South Khorasan province, Iran, the present research focused on determining the prevalence of internalizing and externalizing problems in regional school-aged adolescents and analyzing related demographic characteristics. Method : This descriptive cross-sectional study included 1,152 adolescents aged 12 to 19 years (mean age = 15.42, SD = 1.65) from Birjand City. A multistage random sampling method was employed to select the participants. Data were collected using the self-report version of the Strengths and Difficulties Questionnaire (SDQ), which measures internalizing and externalizing problems. To analyze the data, descriptive statistics were computed and comparative analyses were performed. Demographic variables such as age, gender, academic performance, school grade, and school type were also included in the analysis. Results: The prevalence of internalizing problems among the participants was 36.8% (95% confidence interval: 34.0 to 39.6), whereas externalizing problems were identified in 15.2% (95% CI: 13.0 to 17.4). Internalizing problems were significantly more prevalent among girls (40.1%) than boys (32%). However, no significant gender difference was found in externalizing problems (girls: 14.5%, boys: 15.8%). Emotional problems (28.6%) and hyperactivity (10.4%) were significantly more common in girls, while peer problems (61.7%) and conduct problems (17.5%) were higher in boys (P < 0.01). Adolescents with poor academic performance and those attending public schools reported higher levels of psychological problems (P < 0.01). Conclusion: Internalizing problems are more common than externalizing problems among adolescents. The main risk factors include being female, poor academic performance, and attending public schools. Mental health programs and interventions should prioritize these high-risk subgroups to enhance preventive and therapeutic outcomes.

PMID:
42605284
Bibliographic data and abstract were imported from PubMed on 17 Aug 2026.

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