Controlled-Release Methylphenidate Improves Attention During On-Road Driving by Adolescents with Attention-Deficit/Hyperactivity Disorder

Article Figures & Data

Table 1.

Driving Performance Variables and Total Incidence for Both Conditions

Performance Variables	Controlled-Release MPH	No Medication
Control variables
Driving significantly faster than traffic	36	37
Driving significantly slower than traffic	2	4
Impulsivity
Cut someone off	2	2
Pulled out in front of person	0	1
Following traffic too close, ‘tail gating’	4	4
Got angry at traffic	1	2
Inattentiveness
Distracted by inside: CD/radio, examiner, etc.	7	12
Distracted by outside: traffic, pedestrians, etc.	6	5
Missed turn	4	8
Failed to see signal and ran a red light or stop sign	2	5
Inappropriate hesitation, balking	7	12
Inappropriate or unwarranted braking	2	11
Failed to yield to signals or right of way	1	4
Failed to signal when turning	18	29
Drove across midline	2	5
Drove off road or over curb	3	2