Abstract
Objectives: We aimed at 1) collating and evaluating the current evidence on factors contributing to resilience of adult transnational migrants, 2) identifying methodological factors which contribute to the findings, 3) identifying and analyzing promotive and preventive factors contributing to the findings. Methods: A systematic search for relevant studies published until 2021 was conducted in PubMed, PsycINFO, PTSDPubs, and Web of Science. Both, quantitative and qualitative peer-reviewed observational studies reporting on resilience and wellbeing, sense of coherence, or post-traumatic growth outcomes among transnational migrants (aged 18+). Risk of Bias was assessed using the Critical Appraisal Skills Program for qualitative studies and the Appraisal Tool for cross-sectional studies. Due to the heterogeneity of studies we did a narrative review. Results: Database search yielded 3,756 unique records, of those n = 80 records, representing n = 76 studies met the inclusion criteria. The studies provided knowledge on resilience for n = 9,845 transnational migrants across 23 countries. All studies except two were cross sectional. N = 45 reported on resilience, n = 4 on Sense of Coherence and n = 15 on Post-Traumatic Growth. The study methods were not related to the findings. Future orientation, hope and religion/spirituality, caring for others and having opportunities were shown to be more pertinent to resilience outcomes than institutional care structures. Conclusion: Our findings highlight that mental health professionals and policymakers should try to support positive perspectives for the future and encourage policies tailored towards giving refugees opportunities to work, learn and care and to help others.