Comparison of the predictive power of socio-economic variables, severity of injury and age on long-term outcome of traumatic brain injury: sample-specific variables versus factors as predictors
Authors: Hoofien D.1; Vakil E.2; Gilboa A.3; Donovick P. J.4; Barak O.1
Source: Brain Injury, Volume 16, Number 1, 1 January 2002 , pp. 9-27(19)
Publisher: Informa Healthcare
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Abstract:
The primary objective of this study was to measure the predictive power of pre-injury socio-economic status (SES), severity of injury and age variables on the very long-term outcomes of traumatic brain injury (TBI). By applying a within-subjects retroactive follow-up design and a factor analysis, the study also compared the relative power of sample-specific predictors to that of more commonly used variables and conceptually based factors. Seventy-six participants with severe TBI were evaluated at an average of 14 years post-injury with an extensive neuropsychological battery. The results show that pre-injury SES variables predict long-term cognitive, psychiatric, vocational, and social/familial functioning. Measures of severity of injury predict daily functioning, while age at injury fails to predict any of these variables. Sample-specific predictors were more powerful than more commonly used predictors. Implications regarding long-term clinically based and conceptually based prediction, and those regarding comparisons of predictors across samples are further discussed.Language: English
Document Type: Research article
Affiliations: 1: The National Institute for the Rehabilitation of the Brain Injured & The Hebrew University of Jerusalem, Israel 2: Bar Ilan University, Ramat Gan, Israel 3: The National Institute for the Rehabilitation of the Brain Injured, Israel 4: State University of NY at Binghamton, New York, USA
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