As far as it is known, there is no longitudinal study in Turkey investigating the follow-up and treatment of children and adolescents exposed to trauma. This study is planned to reassess children and adolescents with trauma exposure who were evaluated in Istanbul Faculty of Medicine Child Psychiatry outpatient clinic as part of a thesis study one year ago (January-April 2024) and to examine how many of them continue to meet the criteria for Post-Traumatic Stress Disorder (PTSD), how many receive a diagnosis of Complex Post-Traumatic Stress Disorder (CPTSD), and which factors are associated with these outcomes. In this way, it is aimed to contribute to the literature on the long-term effects of trauma exposure. Additionally, since there is no scale in our country that assesses the diagnosis of CPTSD in children, the study also aims to translate the Child and Adolescent Trauma Screen Scale - 2 (CATS-2) into Turkish and examine its psychometric properties.