The impact of temporary residence permit on symptom severity and treatment outcome among refugees with PTSD

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Despite an increased focus on the impact of post-migratory factors on the health of trauma-affected refugees, research on the influence of residence permit is limited. This influence may manifest on the outcome of psychiatric treatment. Accordingly, the aim of this study was to examine the role of temporary residence permit on symptom severity and treatment outcome among trauma-affected refugees in PTSD treatment. The sample consisted of 897 patients, who were allocated into three groups based on their residence permit: temporary residence permit, permanent residence permit, and Danish citizenship. The outcome measures were symptoms of PTSD (Harvard Trauma Questionnaire), depression and anxiety (Hopkins Symptom Checklist-25 and Hamilton Depression and Anxiety Rating Scales), quality of life (WHO-5 Well-being Index), and functioning (The Sheehan Disability Scale), evaluated before and after psychiatric treatment. Temporary residents tended to have less severe symptoms prior to treatment. Overall, no significant differences were observed between the three groups on treatment outcome. However, Danish citizens had a poorer treatment outcome on Hamilton Depression Scale compared with temporary residents. This study is one of the first to investigate treatment implications of residence permit in a clinical setting. The interactions between mental health and individual post-migratory factors are complex. Further research is still needed to understand how residence status affects mental health and treatment outcomes for refugees.