Discrepancies in perceptions of PTSD symptoms among veteran couples: Links to poorer relationship and individual functioning.

Veteran and intimate partner perceptions of posttraumatic stress disorder (PTSD) may differ, and little is known about how agreement or disagreement on symptom severity is related to relationship satisfaction. Veterans and their partners (N = 199 couples) completed a baseline assessment for a clinical trial evaluating two couple-based PTSD interventions. Veterans completed the PTSD Checklist for DSM-5 (PCL-5). Partners completed the collateral PCL-5 (PCL-5-C), which asked them to rate the severity of the veteran's PTSD symptoms. Both partner and veteran completed the Couples Satisfaction Index (CSI-32). Intraclass correlations (ICC) assessed agreement between PCL-5 and PCL-5-C total and subscale scores, which was low for total PCL and for all subscales (ICC = 0.15-0.46). Actor-Partner Interdependence Models (APIMs; actor-only pattern) tested associations between relationship satisfaction and PTSD symptom severity (total PCL and subscales), and the magnitude and direction of difference between PCL-5 and PCL-5-C (total and subscales). For veterans, more severe total PTSD and negative cognition/mood scores were associated with lower relationship satisfaction, and the direction of discrepancy for negative cognition/mood (i.e., higher veteran-rated PTSD symptoms relative to partner's collateral report) was also associated with lower satisfaction. For partners, more severe collateral-reported symptoms for total PTSD and all four subscales were associated with lower relationship satisfaction; further, a larger discrepancy between veterans' and partners' reports of total PTSD, negative cognition/mood, and hyperarousal were associated with lower satisfaction. These results suggest that partners may have different perceptions of PTSD symptoms, and support the potential of fostering a shared understanding of PTSD symptom severity in couples.