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Self-reported Participation Restrictions Among Male and Female Veterans With Traumatic Brain Injury in Veterans Health Administration Outpatient Polytrauma Programs

Published:August 10, 2020DOI:https://doi.org/10.1016/j.apmr.2020.06.030

      Abstract

      Objectives

      To identify areas of most restricted self-reported participation among veterans with traumatic brain injury (TBI), explore associations among participation restriction and clinical characteristics, and examine differences in participation restrictions by sex.

      Design

      Retrospective cross-sectional design.

      Setting

      National VA Polytrauma System of Care outpatient settings.

      Participants

      Veterans with a confirmed TBI event (N=6065).

      Interventions

      Not applicable.

      Main Outcome Measure(s)

      Mayo-Portland Participation Index (M2PI), a 5-point Likert-type scale with 8 items. Total score was converted to standardized T score for analysis.

      Results

      The sample consisted of 5679 male and 386 female veterans with ≥1 clinically confirmed TBI events (69% white; 74% with blast exposure). The M2PI items with greatest perceived restrictions were social contact, leisure, and initiation. There were no significant differences between men and women on M2PI standardized T scores. Wilcoxon rank-sum analyses showed significant differences by sex on 4 items: leisure, residence, employment, and financial management (all P<.01). In multinomial logistic regression on each item controlling for demographics, injury characteristics, and comorbidities, female veterans had significantly greater relative risk for part-time work and unemployment on the employment item and significantly less risk for impairment on the residence and financial management item.

      Conclusions

      There was no significant difference between men and women. Veterans on M2PI standardized T scores, which masks differences in response patterns to individual items. Clinical teams should be encouraged to discuss perceived restrictions with patients and target these areas in treatment planning. Future work is needed to investigate the psychometric properties of the M2PI by biological sex.

      Keywords

      List of abbreviations:

      CTBIE (comprehensive traumatic brain injury evaluation), EHR (electronic health record), ICD-9 (International Classification of Diseases–9th Revision), M2PI (Mayo-Portland Adaptability Inventory Participation Index), PSC (Polytrauma System of Care), PTSD (posttraumatic stress disorder), TBI (traumatic brain injury), VA (Department of Veterans Affairs)
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