Research Reports - Association of post-traumatic stress symptom severity with health-related quality of life and self-reported functioning across 12-months after severe traumatic brain injury

Archives of PM&R
March 12, 2018

Colin M. Bosma, M.A., Nashwa Mansoor, MD, Chiara S. Haller, Ph.D.L P
Objective
The present study investigated the relationship between Post-traumatic stress (PTS) symptom severity and Health-related Quality of Life (HRQoL) after severe Traumatic Brain Injury (TBI).

Design
Longitudinal prospective multi-center, cohort study on severe TBI in Switzerland (2007-2011). Injury severity was determined using the Abbreviated Injury Score of the Head region (HAIS), following clinical assessment and initial computed tomography (CT).

Setting
Baseline data was gathered at time/location of the accident. Longitudinal assessments were done at 3, 6, and 12 months post-injury at the hospital, the rehabilitation unit, and/or the patients living facility.

Participants
A total of 109 patients with severe TBI were included in the analyses.

Interventions
Not applicable.

Main Outcome Measure
a) HRQoL (SF-12, physical and mental component scales, respectively), b) Self-reported emotional, cognitive, and interpersonal functioning (Patient Competency Rating Scale for Neuro-Rehabilitation [PCRS-NR]).

Results
Multilevel models for patients age >50 and ≤50 respectively, revealed significant negative associations between PTS symptom severity and interpersonal functioning (p≤50 = .002; p>50 = <.001). Among patients ≤ 50 years, PTS symptom severity was significantly associated with total functioning (p = .001) and emotional functioning (p = .0006). Among all patients, PTS symptom severity was significantly associated with cognitive functioning (p = <.001) and mental HRQoL (p = .01).

Conclusion
Findings indicate that PTS symptoms after severe TBI are negatively associated with HRQoL and emotional, cognitive, and interpersonal functioning.

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