Evaluating the diagnostic validity of CBCL-OCS in Chinese children and adolescents with OCD

Obsessive-compulsive disorder (OCD) is recognized globally as a serious mental health concern among children and adolescents. Accurate early diagnosis and intervention are crucial for effective management and improving patient outcomes. The primary objective of this study was to evaluate the diagnostic validity of the Child Behavior Checklist-Obsessive Compulsive Scale (CBCL-OCS) in Chinese children and adolescents, ensuring its cultural adaptability. The secondary objective was to explore the clinical characteristics of OCD, including prevalence, symptom severity, and comorbidities.

A cross-sectional epidemiological survey was conducted among 8,595 middle school students in Liaoning Province, China. The CBCL-OCS was employed as the primary screening tool. The optimal cutoff value for OCD screening was determined through receiver operating characteristic (ROC) curve analysis.

The study found an OCD prevalence of 1.710%, which was consistent with the global estimation. ROC analysis determined a cutoff score of 2.5 for CBCL-OCS, with a sensitivity of 0.789 and a specificity of 0.899. Furthermore, adolescents exhibited significantly higher CBCL-OCS scores compared to younger children, suggesting an increase in OCD severity with age. Significant associations were also found between OCD symptoms and comorbid emotional disorders, behavioral problems, and anxiety symptoms.

This study confirms the utility of CBCL-OCS as an effective early screening tool for OCD in Chinese middle school students, highlighting its sensitivity and specificity, and cultural adaptability. Results contributed valuable insights to the epidemiology of OCD among children and adolescents, underscoring the need for targeted interventions during critical developmental periods, especially in adolescence.