Understanding health-related quality of life of caregivers of civilians and service members/veterans with Traumatic Brain Injury: Establishing the reliability and validity of PROMIS social health measures

Publication date: Available online 31 July 2018

Source: Archives of Physical Medicine and Rehabilitation

Author(s): Noelle E. Carlozzi, Phillip A. Ianni, Rael T. Lange, Tracey A. Brickell, Michael A. Kallen, Elizabeth A. Hahn, Louis M. French, David Cella, Jennifer A. Miner, David S. Tulsky

Objective

To examine the reliability and validity of the short form (SF) and computer adaptive test (CAT) versions of the Patient Reported Outcomes Measurement Information System (PROMIS) measures of social health of caregivers of civilians and service members/veterans (SMVs) with traumatic brain injury (TBI).

Design

Self-report questionnaires administered through an on-line data collection platform.

Setting

Hospital and community-based outreach at three TBI Model Systems rehabilitation hospitals, an academic medical center, and a military medical treatment facility

Participants

560 (344 civilians and 216 military) caregivers of individuals with a documented TBI

Intervention

N/A

Main Outcome Measures

5 PROMIS Social Health Measures

Results

All five PROMIS social health measures exceeded the a priori criterion for internal consistency reliability (≥ 0.70); most PROMIS measures met the criterion for test-retest reliability (≥ 0.70) in the civilian sample; in the SMV sample, test-retest reliability was generally below this criterion, except for Social Isolation. For both samples, convergent validity was supported by moderate correlations between the 5 PROMIS social health measures and related measures, and discriminant validity was supported by low correlations between PROMIS social health measures and measures of dissimilar constructs. Most PROMIS scores indicated significantly worse social health in both samples of those caring for individuals who were low functioning. Finally, impairment rates in social health were elevated for those caring for low functioning individuals, especially in the SMV sample.

Conclusions

The PROMIS computer adaptive test and short form social health measures have potential clinical utility for use in caregivers of civilians and SMVs with TBI.

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