Experiential Avoidance, Pain, and Suicide Risk in a National Sample of Gulf War Veterans.

Objective : Pain confers risk for suicidal thoughts and behaviors. Experiential avoidance (EA), which is relevant to both pain and suicide risk, has not been studied as a potential mechanism for this relationship. The present study tested the hypothesis that pain indirectly impacts suicide risk through EA in a national sample of Gulf War veterans. Methods : Participants included a stratified random sample of United States veterans ( N  = 1,012, 78% male) who had served in the Gulf War region between August 1990 and July 1991. Validated scales were used to quantify levels of pain, EA, and suicide risk. Results : Regression analyses indicated independent associations between pain, EA, and suicide risk; moreover, the association between pain and suicide risk was no longer significant once EA was included in model. Bootstrapping analyses confirmed that EA partially accounted for the cross-sectional association between pain and suicide risk, independent of common co-occurring problems, such as depression, PTSD, and alcohol use disorder symptoms. Conclusions : EA could be a key modifiable risk factor to target in people experiencing pain.