Journal
LANCET PSYCHIATRY
Volume 4, Issue 3, Pages 218-229Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S2215-0366(17)30032-9
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Funding
- China Medical Board [10-009, 12-111]
- ARC Future Fellowship [FT 110100345]
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Background The process of becoming a humanitarian migrant is potentially damaging to mental health. We examined the association between pre-migration and post-migration potentially traumatic events and stressors and mental health, and assessed the moderating effect of post-migration stressors in humanitarian migrants in Australia. Methods In this study, we used the first wave of data between 2013 and 2014 from the Building a New Life in Australia survey. The survey included 2399 migrants who had arrived in Australia holding a permanent humanitarian visa 3-6 months preceding the survey, with 77% and 23% of participants being granted visas through off shore and onshore humanitarian programmes, respectively. Post-traumatic stress disorder (PTSD) was measured with the Posttraumatic Stress Disorder 8 items (PTSD-8) and severe mental illness was measured with the Kessler Screening Scale for Psychological Distress (K6). Pre-migration potentially traumatic events and post-migration stressors related to asylum process and resettlement were measured with a self-reported questionnaire. Findings Of the 2399 participants, 762 (31%; 95% CI 29.4-33.2) had PTSD and 394 (16%; 95% CI 14.2-17.2) had severe mental illness. The mean number of pre-migration potentially traumatic events was 2.1 (SD 1.4). 64%, 59%, 49%, and 18% of participants reported poor social integration, economic problems, worrying about family or friends overseas, and loneliness as post-migration stressors. Pre-migration potentially traumatic events and post-migration stressors were positively associated with PTSD and severe mental illness. Factors significantly modifying the association between pre-migration potentially traumatic events and mental health after controlling for confounding factors were resettlement related stressors, including loneliness (odds ratio 1.17, 95% CI 1.05-1.28 for PTSD and 1.28, 1.16-1.41 for severe mental illness) and the number of social integration stressors (1.10, 1.05-1.16 for PTSD). Interpretation Our data suggest that post-migration resettlement-related stressors were the most important correlates of mental health in humanitarian migrants, accounting for both direct and indirect associations. Targeting resettlement-related stressors through augmenting psychosocial care programmes and social integration would be a key approach to improve humanitarian migrants' mental health.
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