Predictors of the on-road driving assessment after traumatic brain injury: comparing cognitive tests, injury factors, and demographics

Adam McKay, Carine Liew, Michael Schonberger, Pamela Ross, Jennie Ponsford

Research output: Contribution to journalArticleResearchpeer-review

23 Citations (Scopus)

Abstract

OBJECTIVES:(1) To examine the relations between performance on cognitive tests and on-road driving assessment in a sample of persons with traumatic brain injury (TBI). (2) To compare cognitive predictors of the on-road assessment with demographic and injury-related predictors.PARTICIPANTS:Ninety-nine people with mild-severe TBI who completed an on-road driving assessment in an Australian rehabilitation setting.DESIGN:Retrospective case series.MAIN MEASURES:Wechsler Test of Adult Reading or National Adult Reading Test-Revised; 4 subtests from the Wechsler Adult Intelligence Scale-III; Rey Auditory Verbal Leaning Test; Rey Complex Figure Test; Trail Making Test; demographic factors (age, sex, years licensed); and injury-related factors (duration of posttraumatic amnesia; time postinjury).RESULTS:Participants who failed the driving assessment did worse on measures of attention, visual memory, and executive processing; however, cognitive tests were weak correlates (r values <0.3) and poor predictors of the driving assessment. Posttraumatic amnesia duration mediated by time postinjury was the strongest predictor of the driving assessment-that is, participants with more severe TBIs had later driving assessments and were more likely to fail.CONCLUSION:Cognitive tests are not reliable predictors of the on-road driving assessment outcome. Traumatic brain injury severity may be a better predictor of on-road driving; however, further research is needed to identify the best predictors of driving behavior after TBI.
Original languageEnglish
Pages (from-to)E44-E52
Number of pages9
JournalThe Journal of Head Trauma Rehabilitation
Volume31
Issue number6
DOIs
Publication statusPublished - 2016

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