1. Cross-Validation of a Classification System for Persons With Traumatic Brain Injury in the Posthospital Period.
- Author
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Sherer M, Ponsford J, Hicks A, Leon-Novelo L, Ngan E, and Sander AM
- Subjects
- Adolescent, Adult, Australia, Brain Injuries, Traumatic diagnosis, Cross-Sectional Studies, Female, Humans, Injury Severity Score, Male, Middle Aged, Outcome Assessment, Health Care, Patient Discharge, Rehabilitation Centers, Time Factors, United States, Young Adult, Brain Injuries, Traumatic classification, Brain Injuries, Traumatic rehabilitation, Quality of Life, Surveys and Questionnaires
- Abstract
Objective: To (1) identify groupings of persons with traumatic brain injury (TBI) in the posthospital period in a cohort recruited in Australia; (2) compare groupings from the Australian cohort to groupings previously developed for a US cohort., Setting: Rehabilitation centers in the US and Australia., Participants: A total of 170 persons with TBI from Australia and 504 persons with TBI from the United States. Participants were aged 18 to 64 years, greater than 6 months postinjury, had capacity to give consent, and had definitive contemporaneous medical evidence of TBI., Design: Observational study., Main Measures: Cognitive tests-Wechsler Letter-Number Sequencing and Coding, Rey Auditory Verbal Learning Test, Trail Making Test, Verbal Fluency. Questionnaires-9 scales from the Traumatic Brain Injury Quality-of-Life system; Neurobehavioral Symptom Inventory; Economic Quality of Life, Family Assessment Device-General Functioning. Performance validity-Word Memory Test., Results: Agreement in classification for the 2 samples was only moderate with 63.5% correctly classified and Cohen's κ = 0.53. A post hoc analysis placing all persons showing poor performance validity in the same group improved classification to 73% and Cohen's κ = 0.65 indicating substantial agreement., Conclusion: Results provided support for the patient groups developed for the US sample and indicate that these groupings largely replicated in a new cohort.
- Published
- 2017
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