@article{ref1,
title="An EEG severity index of traumatic brain injury",
journal="Journal of neuropsychiatry and clinical neurosciences",
year="2001",
author="Thatcher, R. W. and North, D. M. and Curtin, R. T. and Walker, R. A. and Biver, C. J. and Gomez, J. F. and Salazar, Andres M.",
volume="13",
number="1",
pages="77-87",
abstract="EEG spectral analyses were conducted from 19 scalp locations for patients with mild (n=40), moderate (n=25), and severe (n=43) traumatic brain injury (TBI), 15 days to 4 years after injury. Severity of TBI was judged by emergency hospital admission records (Glasgow Coma Score and duration of coma and amnesia). Highest-loading EEG variables on each factor that differed significantly between severe and mild TBI by univariate t-test were entered into a multivariate discriminant analysis, yielding 16 variables. Discriminant analysis between mild and severe TBI groups showed classification accuracy of 96.39%, sensitivity 95.45%, and specificity 97.44%. The EEG discriminant score also measured intermediate severity in moderate TBI patients. Results were cross-validated in 503 VA patients. Significant correlations between EEG discriminant scores, emergency admission measures, and post-trauma neuropsychological test scores validated the discriminant function as an index of severity of injury and a classifier of the extremes of severity.<p /><p>Language: en</p>",
language="en",
issn="0895-0172",
doi="",
url="http://dx.doi.org/"
}