Tehran University of Medical Sciences Iranian Journal of Psychiatry 1735-4587 6 2 2011 06 15 75 79 Mirfarhad Ghalebandi Department of Psychiatry, Tehran University of Medical Sciences, Tehran, Iran Mental Health Research Center of Tehran Institute of psychiatry, Tehran, Iran Mansour Salehi Department of Psychiatry, Tehran University of Medical Sciences, Tehran, Iran Mental Health Research Center of Tehran Institute of psychiatry, Tehran, Iran Maryam Rasoulain Department of Psychiatry, Tehran University of Medical Sciences, Tehran, Iran Mental Health Research Center of Tehran Institute of psychiatry, Tehran, Iran Mitra Hakim Shooshtari Department of Psychiatry, Tehran University of Medical Sciences, Tehran, IranMental Health Research Center of Tehran Institute of psychiatry, Tehran, Iran Morteza Naserbakht Mental Health Research Center of Tehran Institute of psychiatry, Tehran, Iran Mohammad Hosien Salarifar Mental Health Research Center of Tehran Institute of psychiatry, Tehran, Iran 2015 10 14 Objectives: Parasomnias can create sleep disruption; in this article we assessed parasomnias in school-aged children in Tehran . Methods: In spring 2005, a total of 6000 sleep questionnaires were distributed to school-aged children in 5 districts of Tehran (Iran). A modified Pediatrics sleep questionnaire with 34 questions was used. Results: Parasomnias varied from 0.5% to 5.7% among the subjects as follows: 2.7% sleep talking, 0.5% sleepwalking, 5.7% bruxism, 2.3% enuresis, and nightmare 4%. A group of children showed parasomnias occasionally- this was 13.1% for sleep talking, 1.4% for sleepwalking, 10.6% for bruxism, 3.1% for enuresis and 18.4% for nightmares. Conclusion: A high proportion of children starting school suffer from sleep problems. In many cases this is a temporary, developmentally related phenomenon, but in 6% of the children the disorder is more serious and may be connected with various stress factors and further behavioral disturbances. https://ijps.tums.ac.ir/index.php/ijps/article/view/273 https://ijps.tums.ac.ir/index.php/ijps/article/download/273/269