BackgroundPrevalence rates of mental disorders are frequently increased in long-settled war refugees. However, substantial variation in prevalence rates across studies and countries remain unexplained.AimsTo test whether the same sociodemographic characteristics, war experiences and post-migration stressors are associated with mental disorders in similar refugee groups resettled in different countries.MethodMental disorders were assessed in war-affected refugees from the former Yugoslavia in Germany, Italy and the UK. Sociodemographic, war-related and post-migration characteristics were tested for their association with different disorders.ResultsA total of 854 war refugees were assessed (≥255 per country). Prevalence rates of mental disorders varied substantially across countries. A lower level of education, more traumatic experiences during and after the war, more migration-related stress, a temporary residence permit and not feeling accepted were independently associated with higher rates of mood and anxiety disorders. Mood disorders were also associated with older age, female gender and being unemployed, and anxiety disorders with the absence of combat experience. Higher rates of post-traumatic stress disorder (PTSD) were associated with older age, a lower level of education, more traumatic experiences during and after the war, absence of combat experience, more migration-related stress, and a temporary residence permit. Only younger age, male gender and not living with a partner were associated with substance use disorders. The associations did not differ significantly across the countries. War-related factors explained more variance in rates of PTSD, and post-migration factors in the rates of mood, anxiety and substance use disorder.ConclusionsSociodemographic characteristics, war experiences and post-migration stressors are independently associated with mental disorders in long-settled war refugees. The risk factors vary for different disorders, but are consistent across host countries for the same disorders.

Several years after the end of the war, the prevalence rates of mental disorders among war-affected people vary across countries but are generally high. War experiences appear to be linked to anxiety and mood disorders but not substance use disorders. Long-term policies to meet the mental health needs of war-affected populations are required.

People with untreated war-related PTSD have a high risk of still having PTSD a decade after the traumatic event. Their SQOL is relatively low, and they generate considerable care costs. Factors that have been reported as influencing the occurrence of PTSD also appear relevant for recovery from PTSD. Current PTSD may impair SQOL independently of social factors.

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Concomitant MDE and PTSD are associated with the experience of different traumatic events and are characterized by more general psychological distress than either condition alone. The assessment of concomitant MDE and PTSD can facilitate better identification of individuals with severe psychopathology and poor quality of life. People with co-occurrence of MDE and PTSD may require specific health care programs following war.