Prediction of driving ability after inconclusive neuropsychological investigation.
OBJECTIVE
The aim of the present study was to investigate the predictive value of neuropsychological tests for on-road evaluation outcome after inconclusive assessment.


METHODS
Thirty-five patients were assessed neurologically, neuropsychologically by traditional clinical tests and by on-road evaluation. Simple univariate tests, logistic regression and ROC-curve analysis were used to investigate the predictive power of different neuropsychological tests.


RESULTS
Six measures from the California Computerized Assessment Package (CalCAP) and the Digit-Symbol test from Wechsler Adult Intelligence Scale predicted the outcome of the on-road evaluation. A logistic regression analysis showed that a model with two variables from CalCAP and the Digit Symbol test predicted the results of the on-road driving evaluation with an overall accuracy of 84.8%.


CONCLUSIONS
The findings indicate that the outcome of on-road assessment is most related to cognitive skills such as attention and processing speed in combination with cognitive flexibility.
Alexandersen
Alice
A
Medical Division, Department of Physical Medicine and Rehabilitation, Lassa, Stavanger University Hospital, Norway. alice.alexandersen@sus.no
Dalen
Knut
K
Brønnick
Kolbjørn
K
D000328:Adult; D001288:Attention; D001334:Automobile Driving; D002493:Central Nervous System Diseases / Q000534:rehabilitation; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination / Q000592:standards; D009483:Neuropsychological Tests / Q000592:standards*; D009664:Norway; D011237:Predictive Value of Tests; D011379:Prognosis; D011597:Psychomotor Performance; D011930:Reaction Time; D015203:Reproducibility of Results