Development and validation of a revised trauma-specific quality of life instrument

Juan Pablo Herrera-Escobar, Terri deRoon-Cassini, Karen Brasel, Deepika Nehra, Syeda Sanam Al Rafai, Alexander Toppo, George Kasotakis, George Velmahos, Ali Salim, Adil Hussain Haider

Research output: Contribution to journalArticle

Abstract

BACKGROUND: The National Academies of Science has called for routine collection of long-term outcomes after injury. One of the main barriers for this is the lack of practical trauma-specific tools to collect such outcomes. The only trauma-specific long-term outcomes measure that applies a biopsychosocial view of patient care, the Trauma Quality-of-Life (T-QoL), has not been adopted because of its length, lack of composite scores, and unknown validity. Our objective was to develop a shorter version of the T-QoL measure that is reliable, valid, specific, and generalizable to all trauma populations. METHODS: We used two random samples selected from a prospective registry developed to follow long-term outcomes of adult trauma survivors (Injury Severity Score ≥9) admitted to three level I trauma centers. First, we validated the original T-QoL instrument using the 12-Item Short-Form Health Survey (SF-12) version 2.0 and Breslau post-traumatic stress disorder screening (B-PTSD) tools. Second, we conducted a confirmatory factor analysis to reduce the length of the original T-QoL instrument, and using a different sample, we scored and performed internal consistency and validity assessments of the revised T-QoL (RT-QoL) components. RESULTS: All components of the original T-QoL were significantly correlated negatively with the B-PTSD and positively with the SF-12 mental and physical composite scores. After confirmatory factor analysis, a three-component structure using 18 items (six items/component) most appropriately represented the data. Each component in the revised instrument demonstrated a high level of internal consistency (Cronbach's α ≥0.8) and correlated negatively with the B-PTSD and positively with the SF-12, demonstrating concurrent validity. In addition, each of the RT-QoL components was able to distinguish between individuals based on their work status, with those who have returned to work reporting better health. CONCLUSION: This more practical RT-QoL measure greatly increases the ability to evaluate long-term outcomes in trauma more efficiently and meaningfully, without sacrificing the validity and psychometric properties of the original instrument. LEVEL OF EVIDENCE: Prognostic and epidemiological, level III.

Original languageEnglish (US)
Pages (from-to)501-507
Number of pages7
JournalThe journal of trauma and acute care surgery
Volume88
Issue number4
DOIs
StatePublished - Apr 1 2020

ASJC Scopus subject areas

  • Surgery
  • Critical Care and Intensive Care Medicine

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    Herrera-Escobar, J. P., deRoon-Cassini, T., Brasel, K., Nehra, D., Al Rafai, S. S., Toppo, A., Kasotakis, G., Velmahos, G., Salim, A., & Haider, A. H. (2020). Development and validation of a revised trauma-specific quality of life instrument. The journal of trauma and acute care surgery, 88(4), 501-507. https://doi.org/10.1097/TA.0000000000002505