@article{ref1,
title="Cross-validation of a classification system for persons with traumatic brain injury in the posthospital period",
journal="Journal of head trauma rehabilitation",
year="2017",
author="Sherer, Mark and Ponsford, Jennie and Hicks, Amelia and Leon-Novelo, Luis and Ngan, Esther and Sander, Angelle M.",
volume="32",
number="5",
pages="E17-E25",
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. <br><br>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. <br><br>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. <br><br>CONCLUSION: Results provided support for the patient groups developed for the US sample and indicate that these groupings largely replicated in a new cohort.<p /> <p>Language: en</p>",
language="en",
issn="0885-9701",
doi="10.1097/HTR.0000000000000290",
url="http://dx.doi.org/10.1097/HTR.0000000000000290"
}