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Risk of depressive disorder following disasters and military deployment: systematic review with meta-analysis

  • J. P. Bonde (a1), N. Utzon-Frank (a1), M. Bertelsen (a2), M. Borritz (a1), N. H. Eller (a1), M. Nordentoft (a3), K. Olesen (a4), N. H. Rod (a5) and R. Rugulies (a6)...
Abstract
Background

Numerous studies describe the occurrence of post-traumatic stress disorder following disasters, but less is known about the risk of major depression.

Aims

To review the risk of depressive disorder in people surviving disasters and in soldiers returning from military deployment.

Method

A systematic literature search combined with reference screening identified 23 controlled epidemiological studies. We used random effects models to compute pooled odds ratios (ORs).

Results

The average OR was significantly elevated following all types of exposures: natural disaster OR = 2.28 (95% CI 1.30–3.98), technological disaster OR = 1.44 (95% CI 1.21–1.70), terrorist acts OR = 1.80 (95% CI 1.38–2.34) and military combat OR = 1.60 (95% CI 1.09–2.35). In a subset of ten high-quality studies OR was 1.41 (95% CI 1.06–1.87).

Conclusions

Disasters and combat experience substantially increase the risk of depression. Whether psychological trauma per se or bereavement is on the causal path is unresolved.

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Copyright
Corresponding author
Professor Jens Peter Bonde, Department of Occupational and Environmental Medicine, Bispebjerg Hospital, Bispebjerg Bakke 23 2400, Copenhagen NV, Denmark. Email: jpb@bbh.regionh.dk
Footnotes
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The study was supported by a grant from the Danish Work Environment Research Fund (NR 20130000299/3).

Declaration of interest

None.

Footnotes
References
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Risk of depressive disorder following disasters and military deployment: systematic review with meta-analysis

  • J. P. Bonde (a1), N. Utzon-Frank (a1), M. Bertelsen (a2), M. Borritz (a1), N. H. Eller (a1), M. Nordentoft (a3), K. Olesen (a4), N. H. Rod (a5) and R. Rugulies (a6)...
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