Tabriz University of Medical Sciences Journal of Research in Clinical Medicine 2717-0616 5 1 2017 03 10 Does Severity of Attention Deficit /Hyperactivity Disorder impact Trauma in Children? 9 14 10.15171/jarcm.2017.003 EN Ali Reza Shafiee-Kandjani Seyed Gholamreza Noorazar Saeed Aslanabadi Javad Abdollahi-Rashid Mehrnaz Dadkhah Journal Article 10.15171/jarcm.2017.003 2016 11 05 2016 12 05 Introduction: Attention deficit hyperactivity disorder (ADHD) is a chronic neurodevelopmental disorder with high heritability. It is the most common childhood mental disorder. The key aspects of ADHD may put the affected children at risk for different traumatic experiences. Therefore, this study was conducted to investigate the relationship between the severity of trauma and ADHD symptoms in children. Methods: In this descriptive-correlational study, the target population included 90 children aged 6-12 years old, visiting Imam Reza, Children, Sina, and Shohada Hospitals in Tabriz, Iran. The severity of trauma was assessed, using placebo transdermal system (PTS), and the ADHD symptoms were evaluated, using Conners' Parent Rating Scale. To rule out other psychiatric disorders, the Child Symptoms Inventory-4 (CSI-4) was employed. Results: Results showed a significant positive correlation between the severity of trauma and ADHD, hyperactivity, oppositional/impulsivity, and attention-deficit scores (P < 0.01). In addition, results from the independent t-test suggested a significance difference between the ADHD and non-ADHD children in terms of the severity of trauma. Conclusion: There was a significant relationship between the symptoms of ADHD and the severity of trauma in children, in a way that the scores of the aforementioned variables improved with increasing the severity of trauma. Regarding the profound effects of trauma on human and financial resources, required measures should be taken for making house and school settings safe for such children.