The differential contributions of posttraumatic amnesia duration and time since injury in prediction of functional outcomes following moderate-to-severe traumatic brain injury

The Journal of Head Trauma Rehabilitation
Angela D EastvoldRodney D Vanderploeg

Abstract

To examine the relative contributions of preinjury, injury severity, and acute postinjury variables in predicting outcomes at 1 year following moderate-severe traumatic brain injury (TBI). Secondary analysis of a prospective longitudinal cohort study. Four Veterans Affairs Medical Center acute inpatient rehabilitation programs. Active duty military or veterans with a nonpenetrating moderate-to-severe TBI. Independent living status (N = 280) and work status (N = 248) at one year postinjury. Preinjury characteristics as a group accounted for the largest amount of variance in independent living status at 1 year; however, posttraumatic amnesia (PTA) uniquely explained the largest amount of variance (8.8%). Those with less than 60 days PTA were 9 times more likely to be independent; those with less than 30 days PTA were 3 times more likely to be independent. In contrast, acute postinjury characteristics accounted for the largest amount of variance in work status, with time to rehabilitation explaining the most unique variance (10.4%). Those with less than 48 days time to rehabilitation were 2.4 times more likely to be productive. This study highlights the differential contribution of variables in the prediction of 2 specific functio...Continue Reading

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Citations

Dec 2, 2014·Journal of Rehabilitation Research and Development·David S Kushner, Doug Johnson-Greene
Jun 23, 2015·The Journal of Head Trauma Rehabilitation·Caroline M RobertsJennie L Ponsford
Jul 28, 2015·Archives of Physical Medicine and Rehabilitation·John D CorriganSarah Majercik
Jul 23, 2013·Archives of Physical Medicine and Rehabilitation·Jordan C BrooksCynthia L Harrison-Felix
Nov 1, 2016·Brain : a Journal of Neurology·Sara De SimoniDavid J Sharp
Sep 11, 2018·Journal of the International Neuropsychological Society : JINS·Caroline M RobertsJennie L Ponsford
Apr 30, 2019·The Journal of Head Trauma Rehabilitation·Nicole L MazwiBrian L Edlow

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Brain Injury & Trauma

brain injury after impact to the head is due to both immediate mechanical effects and delayed responses of neural tissues.