Epidemiological Survey on the Status of Obsessive-compulsive Disorder among School-age Childrenin Iran

Background and purpose: The age of the onset of obsessive-compulsive disord er (OCD) and its manifestation is now identified at childhood. In th e present study, we aimed to epidemiologically assess OCD and its main determinants in school-age children. Materials and Methods: This cross-sectional study was performed on 600 con secutive schoolage children (7-12 years old) in primary schools at Kermanshah, Iran in May 2012. OCD status was assessed using the Maudsley Obsessive Compulsive Inventory . Results: In this study, the prevalence of OCD in children we re 12.2% (73 person). Among OCDs, 32.0% were male and 68.0% were female with a significant difference (P < 0.001). Among different subscales of OCD, checking was more prevalent in girls than in boys (74.0% vs. 65.0%, P < 0.001), whereas doubting was more revealed in boys than in girls (56.0% vs. 34.0%, P < 0.001). In this regard, no differences w ere found between boys and girls in the rate of washing subscale (43.0% vs. 40.0%, P = 0.456) and slowness domain (30.0% vs. 34.0%, P = 0.294). Totally, mean MOCI score was significantly a higher in girls than in boys in different grades of education. OCD was influenced b y father’s occupation status, parents’ education level, order of birth, dependence to moth ers and previous history of OCD in fathers. Conclusion: The prevalence of OCD was a higher than other areas in the country and other populations. Because of the existence of OCD potent ial determinants including socioeconomic level and familial tendency, the high prevalence of the disease must be considered in correlation with these factors.