Trends and Risk Factors for Mental Health Diagnoses Among Iraq and Afghanistan Veterans Using Department of Veterans Affairs Health Care, 2002-2008

Authors
Seal, K. H. Metzler, T. J. Gima, K. S. Bertenthal, D. Maguen, S. Marmar, C. R.
Publication year
2009
Citation Title
Trends and risk factors for mental health diagnoses among Iraq and Afghanistan veterans using Department of Veterans Affairs health care, 2002-2008.
Journal Name
American Journal of Public Health: Research and Practice
Journal Volume
99
Issue Number
9
Page Numbers
1651-1658
DOI
10.2105/AJPH.2008.150284
Summary
Administrative records of OEF/OIF Veterans who first accessed Veterans Affairs (VA) resources from 2002-2008 were used to investigate longitudinal trends and risk factors for mental health diagnoses among OEF/OIF Veterans. A large portion of the Veterans received mental health diagnoses during this time period for a variety of mental health concerns including, posttraumatic stress disorder (PTSD) and depression.
Key Findings
Thrity-seven percent of the OEF/OIF Veterans seen in the VA healthcare system from 2002-2008 received mental health diagnoses over the study period.
The cumulative prevalence of mental health diagnoses increased linearly with increasing length of time in the VA health care system.
The two-year prevalence rates of all new mental health diagnoses increased substantially in association with the start of the war in Iraq.
The youngest Active Duty Service members were at the highest risk for diagnoses of PTSD and drug and alcohol use disorder.
Implications for Program Leaders
Include information in their educational classes for families that mental health problems may emerge over time and not be readily apparent immediately post-deployment
Provide periodic outreach (e.g., communication via email, websites, U.S. mail) to Service members as mental health problems may emerge years after deployment or Service members may be ready for treatment at later dates
Develop specialized programming for deployed mothers that focus on healthy behaviors, substance abuse prevention, mental health, and parenting
Implications for Policy Makers
Encourage the development and continuation of programs that can promote resilience in Service members, their partners, and children
Promote reintegration programs that include attention to assisting Service members’ family in adjusting to the Service member’s return
Recommend education for service providers around the possible effects of deployment on Service members’ families
Methods
Veterans on the VA OEF/OIF roster who served in Iraq and/or Afghanistan and were first time users of VA health care after their OIF/OEF military service until March 31, 2008 were included.
Demographic and military variables were extracted from the OEF/OIF Freedom roster.
ICD-9 classification codes associated with VA inpatient and outpatient visits were extracted from VA National Patient Care Database.
Prevalence rates were calculated, and risk for mental health diagnoses were determined.
Participants
A total of 289,328 OEF/OIF Veterans were included (59% Active Duty).
Charactersitics of participants who were Active Duty were as follows: 87% male, 33% 25-29 years old, 33% 16-24 years old, 64% White, 18% Black, 11% Latino/Latina, 37% never married, 32% married, 94% enlisted, 46% Army, 20% Marines, 19% Navy, 16% Air Force, and 67% had only one deployment.
Characteristics of participants who were National Guard and Reserve were as follows: 89% male, 28% 40-68 years old, 26% 30-39 years old, 23% 16-24 years old, 72% White, 14% Black, 9% Latino/Latina, 36% never married, 45% married, 92% enlisted, 83% Army, 6% Marines, 4% Navy, 7% Air Force, and 67% had only one deployment.
Limitations
These results do not generalize to all OEF/OIF Veterans as rates of pre-existing or new mental health diagnoses may be higher among OEF/OIF Veterans who use the VA.
The determination of cumulative prevalence of mental health diagnoses may be biased as all Veterans with mental health diagnoses were retained in the numerator.
Diagnostic prevalence was based on ICD-9 codes entered in a database and is subject to error.
Avenues for Future Research
Use clinical interviews with a subset of the population to check how accurately the ICD codes reflect diagnostic criteria
Include family report of mental health functioning to obtain a more comprehensive view of Service members' functioning
Gather longitudinal data on Service members' use of the VA services and how this impacts their healthcare over time
Design Rating
3 Stars - There are few flaws in the study design or research sample. The flaws that are present are minor and have no effect on the ability to draw conclusions from the data.
Methods Rating
2 Stars - There are no significant biases or deficits in the way the variables in the study are defined or measures and conclusions are appropriately drawn from the analyses performed.
Limitations Rating
2 Stars - There are a few factors that limit the ability to extend the results to an entire population, but the results can be extended to most of the population.
Focus
Multiple Branches
Target Population
Population Focus
Military Component
Abstract
Objectives. We sought to investigate longitudinal trends and risk factors for mental health diagnoses among Iraq and Afghanistan veterans. Methods. We determined the prevalence and predictors of mental health diagnoses among 289,328 Iraq and Afghanistan veterans entering Veterans Affairs (VA) health care from 2002 to 2008 using national VA data. Results. Of 289,328 Iraq and Afghanistan veterans, 106,726 (36.9%) received mental health diagnoses; 62,929 (21.8%) were diagnosed with posttraumatic stress disorder (PTSD) and 50,432 (17.4%) with depression. Adjusted 2-year prevalence rates of PTSD increased 4 to 7 times after the invasion of Iraq. Active duty veterans younger than 25 years had higher rates of PTSD and alcohol and drug use disorder diagnoses compared with active duty veterans older than 40 years (adjusted relative risk = 2.0 and 4.9, respectively). Women were at higher risk for depression than were men, but men had over twice the risk for drug use disorders. Greater combat exposure was associated with higher risk for PTSD. Conclusions. Mental health diagnoses increased substantially after the start of the Iraq War among specific subgroups of returned veterans entering VA health care. Early targeted interventions may prevent chronic mental illness.
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