Mutual maintenance of PTSD and physical symptoms for Veterans returning from deployment
Abstract: Background: The mutual maintenance model proposes that post-traumatic stress disorder (PTSD) symptoms and chronic physical symptoms have a bi-directional temporal relationship. Despite widespread support for this model, there are relatively few empirical tests of the model and these have primarily examined patients with a traumatic physical injury. Objective: To extend the assessment of this model, we examined the temporal relationship between PTSD and physical symptoms for military personnel deployed to combat (i.e., facing the risk of death) who were not evacuated for traumatic injury. Methods: The current study used a prospective, longitudinal design to understand the cross-lagged relationships between PTSD and physical symptoms before, immediately after, 3 months after, and 1 year after combat deployment. Results: The cross-lagged results showed physical symptoms at every time point were consistently related to greater PTSD symptoms at the subsequent time point. PTSD symptoms were related to subsequent physical symptoms, but only at one time-point with immediate post-deployment PTSD symptoms related to physical symptoms at three months after deployment. Conclusion: The findings extend prior work by providing evidence that PTSD and physical symptoms may be mutually maintaining even when there is not a severe traumatic physical injury.
Abstract: The unique demands of military life can adversely impact romantic relationships; however, research has mainly focused on these adverse outcomes at one-time point, overlooking changes over time or potential positive outcomes. Using a subsample of 3,845 male and female military personnel and veterans from a large UK dataset, this study examined positive and negative changes in relationship satisfaction between two-time points (2007–2009; 2014–2016). Most participants reported no change in their relationship satisfaction, suggesting stability − 8% reported a positive change and 10% a negative change. Positive change was associated with being in a long-term relationship, alcohol misuse remission, and persistent alcohol misuse. Negative change was associated with the onset of mental health problems (probable PTSD, CMD, or alcohol misuse) and having children under 18. Some factors, like increasing age, childhood family relationship adversity, and mental health problems, were associated with both positive and negative changes in relationship satisfaction. This study highlights the complexity of factors associated with relationship satisfaction among military personnel and veterans, with some experiencing positive changes, as well as negative changes over time.