1. Disability Rating Scale in the First Few Weeks After a Severe Traumatic Brain Injury as a Predictor of 6-Month Functional Outcome
- Author
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Imoigele P. Aisiku, H. Julia Hannay, Claudia S. Robertson, Jose-Miguel Yamal, and Frances A. Brito
- Subjects
Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Time Factors ,Traumatic brain injury ,Glasgow Outcome Scale ,Poison control ,Logistic regression ,Disability Evaluation ,03 medical and health sciences ,0302 clinical medicine ,Brain Injuries, Traumatic ,medicine ,Humans ,Single-Blind Method ,030212 general & internal medicine ,Trauma Severity Indices ,business.industry ,Surrogate endpoint ,Recovery of Function ,Disability Rating Scale ,Middle Aged ,Prognosis ,medicine.disease ,Clinical trial ,Treatment Outcome ,Closed head injury ,Female ,Surgery ,Neurology (clinical) ,business ,Biomarkers ,030217 neurology & neurosurgery - Abstract
Background An early acute marker of long-term neurological outcome would be useful to help guide clinical decision making and therapeutic effectiveness after severe traumatic brain injury (TBI). We investigated the utility of the Disability Rating Scale (DRS) as early as 1 wk after TBI as a predictor of favorable 6-mo Glasgow Outcome Scale extended (GOS-E). Objective To determine the predictability of a favorable 6-mo GOS-E using the DRS measured during weeks 1 to 4 of injury. Methods The study is a sub analysis of patients enrolled in the Epo Severe TBI Trial (n = 200) to train and validate L1-regularized logistic regression models. DRS was collected at weeks 1 to 4 and GOS-E at 6 mo. Results The average area under the receiver operating characteristic curve was 0.82 for the model with baseline demographic and injury severity variables and week 1 DRS and increased to 0.88 when including weekly DRS until week 4. Conclusion This study suggests that week 1 to 4 DRS may be predictors of favorable 6-mo outcome in severe TBI patients and thus useful both for clinical prognostication as well as surrogate endpoints for adaptive clinical trials.
- Published
- 2020
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