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Original Research

Dusunen Adam. 2010; 23(4): 230-237

Epidemiology of obsessive compulsive disorder at high school students in Edirne city center

Ercan Abay, Aykan Pulular, Çağdaş Öykü Memiş, Necdet Süt.


Objective: To investigate the prevalence of OCD among high school students in Edirne city center, to determine sociodemographic features of OCD, and to determine frequency of OCD symptoms. Methods: The study was conducted with 9th, 10th, and 11th grade high school students in the Edirne city center. The frequency of OCD among the entire population was accepted on 3% in the calculation of sample size and 3107 students among 8037 province-wide students were enrolled to the study with a 0.6% tolerance and a 95% confidence level. The sample was selected from province-wide high schools using stratified sampling by weighing according to gender and the number of students. The sociodemographic data form and the Maudsley Obsessive-Compulsive Inventory (MOCI), which will be filled out by the participant, and the Composite International Diagnostic Interview (CIDI) and two subscales of the CIDI concerning major depression (MD) and generalized anxiety disorder (GAD), which were filled out by the interviewer, were used. In the study, conducted together with a biostatistician, 117 students who had a MOCI score of ? 25 were enrolled into the next stage of the assessment with respect to the normal distribution. Thus, the students who were eligible for assessment of OCD were also diagnostically-assessed in terms of co-morbid GAD and MD by the CIDI. Results: A total of 40 students were diagnosed with OCD, and the point prevalence of OCD was found to be 1.4%. Sociodemographic features of the cases were not statistically significantly different compared to the control group included students selected from the 2856 students, except 117 students who had a MOCI score of ? 25, obtained after dividing into equal intervals. Contamination obsessions and control compulsions were most frequently encountered (40% and 22.5%, respectively), and the frequency of co-morbid MD and GAD were 47.5% and 5%, respectively. Conclusion: In the present study, the sociodemographic features were different from the literature and the results were not statistically different compared to the control group. Puberty is a sensitive period that has different features from other age groups. Therefore, difficulties of working with such an age group were also observed in the present study. It is suggested that there is a need for more informative studies for a better understanding of psychiatric disorders in the population, particularly in adolescence.

Key words: Obsessive-compulsive disorder, adolescence, epidemiology, phenomenology, co-morbidity

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