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Posttraumatic stress disorder post Iraq and Afghanistan: prevalence among military subgroups.
Can J Psychiatry. 2014 Sep; 59(9):468-79.CJ

Abstract

A large body of research has been produced in recent years investigating posttraumatic stress disorder (PTSD) among military personnel following deployment to Iraq and Afghanistan, resulting in apparent differences in PTSD prevalence. We compare prevalence estimates for current PTSD between military subgroups, providing insight into how groups may be differentially affected by deployment. Systematic literature searches using the terms PTSD, stress disorder, and acute stress, combined with terms relating to military personnel, identified 49 relevant papers. Studies with a sample size of less than 100 and studies based on data for treatment seeking or injured populations were excluded. Studies were categorized according to theatre of deployment (Iraq or Afghanistan), combat and noncombat deployed samples, sex, enlistment type (regular or reserve and [or] National Guard), and service branch (for example, army, navy, and air force). Meta-analysis was used to assess PTSD prevalence across subgroups. There was large variability in PTSD prevalence between studies, but, regardless of heterogeneity, prevalence rates of PTSD were higher among studies of Iraq-deployed personnel (12.9%; 95% CI 11.3% to 14.4%), compared with personnel deployed to Afghanistan (7.1%; 95% CI 4.6% to 9.6%), combat deployed personnel, and personnel serving in the Canadian, US, or UK army or the navy or marines (12.4%; 95% CI 10.9% to 13.4%), compared with the other services (4.9%; 95% CI 1.4% to 8.4%). Contrary to findings from within-study comparisons, we did not find a difference in PTSD prevalence for regular active-duty and reserve or National Guard personnel. Categorizing studies according to deployment location and branch of service identified differences among subgroups that provide further support for factors underlying the development of PTSD.

Authors+Show Affiliations

Research Assistant, King's Centre for Mental Health Research, King's College London, London, England.Post-doctoral Researcher, Academic Centre for Defence Mental Health, King's College London, London, England.Professor, King's Centre for Mental Health Research, King's College London, London, England.Professor, King's Centre for Mental Health Research, King's College London, London, England. Professor, Academic Centre for Defence Mental Health, King's College London, London, England.Reader, King's Centre for Mental Health Research, King's College London, London, England; Reader, Academic Centre for Defence Mental Health, King's College London, London, England.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Review

Language

eng

PubMed ID

25569079

Citation

Hines, Lindsey A., et al. "Posttraumatic Stress Disorder Post Iraq and Afghanistan: Prevalence Among Military Subgroups." Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie, vol. 59, no. 9, 2014, pp. 468-79.
Hines LA, Sundin J, Rona RJ, et al. Posttraumatic stress disorder post Iraq and Afghanistan: prevalence among military subgroups. Can J Psychiatry. 2014;59(9):468-79.
Hines, L. A., Sundin, J., Rona, R. J., Wessely, S., & Fear, N. T. (2014). Posttraumatic stress disorder post Iraq and Afghanistan: prevalence among military subgroups. Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie, 59(9), 468-79.
Hines LA, et al. Posttraumatic Stress Disorder Post Iraq and Afghanistan: Prevalence Among Military Subgroups. Can J Psychiatry. 2014;59(9):468-79. PubMed PMID: 25569079.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Posttraumatic stress disorder post Iraq and Afghanistan: prevalence among military subgroups. AU - Hines,Lindsey A, AU - Sundin,Josefin, AU - Rona,Roberto J, AU - Wessely,Simon, AU - Fear,Nicola T, PY - 2012/07/01/received PY - 2014/05/01/accepted PY - 2015/1/9/entrez PY - 2015/1/9/pubmed PY - 2015/2/24/medline SP - 468 EP - 79 JF - Canadian journal of psychiatry. Revue canadienne de psychiatrie JO - Can J Psychiatry VL - 59 IS - 9 N2 - A large body of research has been produced in recent years investigating posttraumatic stress disorder (PTSD) among military personnel following deployment to Iraq and Afghanistan, resulting in apparent differences in PTSD prevalence. We compare prevalence estimates for current PTSD between military subgroups, providing insight into how groups may be differentially affected by deployment. Systematic literature searches using the terms PTSD, stress disorder, and acute stress, combined with terms relating to military personnel, identified 49 relevant papers. Studies with a sample size of less than 100 and studies based on data for treatment seeking or injured populations were excluded. Studies were categorized according to theatre of deployment (Iraq or Afghanistan), combat and noncombat deployed samples, sex, enlistment type (regular or reserve and [or] National Guard), and service branch (for example, army, navy, and air force). Meta-analysis was used to assess PTSD prevalence across subgroups. There was large variability in PTSD prevalence between studies, but, regardless of heterogeneity, prevalence rates of PTSD were higher among studies of Iraq-deployed personnel (12.9%; 95% CI 11.3% to 14.4%), compared with personnel deployed to Afghanistan (7.1%; 95% CI 4.6% to 9.6%), combat deployed personnel, and personnel serving in the Canadian, US, or UK army or the navy or marines (12.4%; 95% CI 10.9% to 13.4%), compared with the other services (4.9%; 95% CI 1.4% to 8.4%). Contrary to findings from within-study comparisons, we did not find a difference in PTSD prevalence for regular active-duty and reserve or National Guard personnel. Categorizing studies according to deployment location and branch of service identified differences among subgroups that provide further support for factors underlying the development of PTSD. SN - 0706-7437 UR - https://www.unboundmedicine.com/medline/citation/25569079/Posttraumatic_stress_disorder_post_Iraq_and_Afghanistan:_prevalence_among_military_subgroups_ L2 - http://journals.sagepub.com/doi/full/10.1177/070674371405900903?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -