Objectives: The purpose of this study was to determine the association between deployment-related occupational/environmental exposures and incident postdeployment mental health (PDMH) conditions in a defined population of military health care professionals working in the deployed critical care environment.
Methods: A nested case-control study compared cohort members with a PDMH condition (cases, N = 146) with those without a PDMH condition (controls, N = 800) in terms of deployment-related exposures as ascertained using Postdeployment Health Assessment DD 2796 questionnaire data. Multivariable logistic regression models were used to compute odds ratios.
Results: Nonphysician career fields (i.e., nurses and medical technicians), exposure to dead bodies or people killed/wounded, history of a vehicular accident/crash, exposure to sand/dust, exposure to lasers, and use of mission-oriented protective posture (MOPP) overgarments were associated with increased likelihood for a PDMH condition. The infrequent exposures (i.e., vehicular accident/crash, lasers, and MOPP overgarments) were the exposures most strongly associated with subsequent PDHM conditions.
Conclusions: For military health care providers returning from the deployed environment, several exposures are useful for predicting those at increased risk for a PDMH condition. However, there are likely many other important risk factors beyond those captured on the DD 2796 questionnaire.
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