Table 1: List of the reviewed studies.

Author(s) Sample/cases and data source Mental Disturb(s) Country where the study took place Measure(s)/Codification
Bulla et al., 2018 1419 immigrants referred to forensic psychiatric treatment in a hospital Psychotic disorders, personality disorders and paraphilia Germany ICD -10 [24]
Dreher et al., 2017 110 first generation Vietnamese and 109 German patients of two psychiatric clinics Somatic symptoms and depression Germany Patient Health Questionnaire (PHQ) [25] subscales
Le et al., 2018 108 refugees and asylum seekers from Turkey and Iran who were patients of two psychiatric clinics PTS, depression and anger symptoms Switzerland Posttraumatic
Diagnostic Scale [26]; Subscale for depression from Hopkins Symptom Checklist-25 item version [27]; item created ad hoc for the study.
Malmusi et al., 2017 28333 non immigrants and 2041 persons born in a not “advanced economy” country individuated through data collected through the European Social Survey Depressive symptoms Cross-national Center for Epidemiologic Studies Depression Scale (8 items version) [28]
Markkula et al., 2017 184806 immigrants living in Finland and 185184 natives individuated through Finnish Central Population Register All the psychiatric diagnoses according to ICD-10 Finland ICD-10
(codes F00–F99) [24]
Miething et al., 2017 5695 of Swedish citizens with at least one Iran-, former Yugoslavia-, and Swedish- born parent. Depression Switzerland 2 item from the Patient Health Questionnaire-2 [29]
Morawa et al., 2017 335 first and second generation immigrants from Turkey Somatization and depression Germany PHQ-15 [30]
Pannetier et al., 2017 2468 immigrants from sub-Saharan countries visiting health care facilities Anxiety and depressive symptoms France PHQ-4 [31]
Puzo et al., 2017 23 073 suicide cases occurred between 1969 and 2012 retrieved from National registers - Norway ICD-8, for the years 1969 – 1985 (codes E950 – E959) [32]; ICD-9, for the years 1986 – 1995 (codes E950 – E959) [33]; and ICD-10, for the years 1996 –2012 (codes X60 – X84, Y870) [24]
Puzo et al., 2018 11,409 suicide cases occurred between 1992 and 2012 retrieved from National registers - Norway ICD 9 for the years 1992 – 1995 (codes E950 - E959) [33] and ICD-10 for the years 1996 – 2012 (codes X60 - X84, Y870) [24].
Ruiz-Castell et al., 2017 1499 first and second generation immigrants and non-immigrants Depression Luxemburg PHQ-9 [34]
Schoefield et al., 2017 2,195,684 persons living in Denmark individuated through the Danish Civil Registration System dataset. Data were merged with those retrieved from the Danish Psychiatric Central Register Non-affective psychosis Norway ICD-10 (codes F20 - F29) [24] and their ICD-8 equivalents (ICD - 8 295.× 9, 296.89, 297.×9, 298.29 – 298.99, 299.04, 299.05, 299.09, 301.83) [32]
Schoefield et al., 2018 2,224,464 persons living in Denmark individuated through the Danish Civil Registration System dataset. Data were merged with those retrieved from the Danish Psychiatric Central Register Non-affective psychosis Norway ICD -10 (codes F20 - F29) [24] and their ICD - 8 equivalents (ICD - 8 295.× 9, 296.89, 297.×9, 298.29 – 298.99, 299.04, 299.05, 299.09, 301.83) [32]
Steele et al., 2017 420 refugees and immigrants living in Sweden PTSD Switzerland Harvard Trauma Questionnaire [35], Post-Migration Living Difficulties Scale [36], Cultural Lifestyle Questionnaire [37], and Hopkins
Checklist-25 [38]
Stouten et al., 2017 46 Dutch, 60 first generation immigrant, and 56 second generation immigrant patients Psychosis Netherland Positive and Negative Syndrome Scale [39] and a battery of measure for neurocognitive, social cognition, and psychosocial functioning assessment