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The Effect of Oef/Oif Deployment Intensity on the Rate of Posttraumatic Stress Disorder Among Active Duty Population


Yu-Chu Shen


U.S. Graduate School of Business and Public Policy; National Bureau of Economic Research (NBER)

Jeremy Arkes


RAND Corporation

Boon Wah Kwan


Government of the United States of America - Naval Postgraduate School

Lai Yee Tan


Government of the United States of America - Naval Postgraduate School

Thomas V. Williams


TRICARE

August 2009

NBER Working Paper No. w15203

Abstract:     
This study estimates the effect of deployment location and length on the risk of developing PTSD, relative to what it would be from the normal military operations. We use a random sample of activity-duty enlisted personnel serving between 2001 and 2006. We identify PTSD cases from TRICARE medical records and link deployment information from Contingent Tracking System. Comparing to those in other duties around the world, deployment to Iraq/Afghanistan increases the odds of developing PTSD substantially, with the largest effect observed for the Navy (OR=9.06, p<0.01) and the smallest effect for the Air Force (OR=1.25, p<0.01). A deployment longer than 180 days increases the odds of PTSD by 1.11 times to 2.84 times, depending on the service, compared to a tour under 120 days. For Army and Navy, a deployment to Iraq/Afghanistan further exacerbates the adverse effect of tour length. Our research identifies the extent of PTSD across services and quantifies the risks associated with OEF/OIF deployment intensity. Further research is needed for effective monitoring and preventive measures of PTSD on the active duty population.

Number of Pages in PDF File: 23

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Date posted: August 11, 2009  

Suggested Citation

Shen, Yu-Chu and Arkes, Jeremy and Kwan, Boon Wah and Tan, Lai Yee and Williams, Thomas V., The Effect of Oef/Oif Deployment Intensity on the Rate of Posttraumatic Stress Disorder Among Active Duty Population (August 2009). NBER Working Paper No. w15203. Available at SSRN: http://ssrn.com/abstract=1444704

Contact Information

Yu-Chu Shen (Contact Author)
U.S. Graduate School of Business and Public Policy ( email )
555 Dyer Road
Monterey, CA 93943
United States
National Bureau of Economic Research (NBER)
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
Jeremy Arkes
RAND Corporation ( email )
1776 Main Street
P.O. Box 2138
Santa Monica, CA 90407-2138
United States
Boon Wah Kwan
Government of the United States of America - Naval Postgraduate School ( email )
1 University Circle
Monterey, CA 93943-5001
United States
Lai Yee Tan
Government of the United States of America - Naval Postgraduate School ( email )
1 University Circle
Monterey, CA 93943-5001
United States
Thomas V. Williams
TRICARE ( email )
5111 Leesburg Pike
Suite 810
Falls Church, VA
United States
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