Influence of trauma history on panic and posttraumatic stress disorder in returning veterans.

The current study examined the role of predeployment sexual and physical abuse, combat exposure, and postdeployment social support in predicting panic disorder and PTSD diagnoses in a large sample of returning veterans. A chart review was conducted for 1740 OEF/OIF veterans who received mental health screenings at a large VA hospital between May 24, 2004 and March 26, 2008. Assessments included psychosocial evaluations conducted by psychiatrists, psychologists, and social workers in addition to self-report measures. Results suggested that the prevalence of panic disorder (6.1%) and PTSD (28.7%) are elevated among OEF/OIF veterans. Veterans reporting higher levels of combat experience were likely to be diagnosed with PTSD (odds ration [OR], 1.17; 95% confidence interval [CI], 1.10-1.25; p < .001) or comorbid panic disorder and PTSD (OR, 1.18; 95% CI, 1.04-1.33; p < .001). Veterans endorsing predeployment sexual abuse were likely to be diagnosed with comorbid panic disorder and PTSD (OR, 3.05; 95% CI, 1.15-8.08; p < .05), as were veterans endorsing predeployment physical abuse (OR, 0.47; 95% CI, 0.22-1.00; p < .05). Panic disorder was also found to be associated with greater risk for suicide attempts than PTSD (χ² = 16.38, p = .001). These findings indicate a high prevalence of panic disorder among returning veterans and highlight the importance for clinicians to assess returning veterans routinely for panic disorder in addition to PTSD.