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Suicide Life Threat Behav. 2019 Sep 23. doi: 10.1111/sltb.12592. [Epub ahead of print]

Early First Deployment and Risk of Suicide Attempt Among First-term Enlisted Soldiers in the U.S. Army.

Author information

1
Center for the Study of Traumatic Stress, Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, MD.
2
Department of Health Care Policy, Harvard Medical School, Boston, MA.
3
Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD.
4
Department of Psychiatry and Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA.
5
VA San Diego Healthcare System, San Diego, CA.

Abstract

OBJECTIVE:

We examined early first deployment and subsequent suicide attempt among U.S. Army soldiers.

METHOD:

Using 2004-2009 administrative data and person-month records of first-term, Regular Army, enlisted soldiers with one deployment (89.2% male), we identified 1,704 soldiers with a documented suicide attempt during or after first deployment and an equal-probability control sample (n = 25,861 person-months).

RESULTS:

Logistic regression analyses indicated soldiers deployed within the first 12 months of service were more likely than later deployers to attempt suicide (OR = 1.7 [95% CI = 1.5-1.8]). Adjusting for sociodemographic characteristics, service-related characteristics, and previous mental health diagnosis slightly attenuated this association (OR = 1.6 [95% CI = 1.5-1.8]). Results were not modified by gender, deployment status, military occupation, or mental health diagnosis. The population-attributable risk proportion for deploying within the first 12 months of service was 17.8%. Linear spline models indicated similar risk patterns over time for early and later deployers, peaking at month 9 during deployment and month 5 postdeployment; however, monthly suicide attempt rates were consistently higher for early deployers.

CONCLUSIONS:

Enlisted soldiers deployed within the first 12 months of service have elevated risk of suicide attempt during and after first deployment. Improved understanding of why early deployment increases risk can inform the development of policies and intervention programs.

PMID:
31544970
DOI:
10.1111/sltb.12592

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