The association between the score of adult attention-deficit/hyperactivity traits and risky driving behaviors with alcohol intake and narcotics consumption among Iranian motorcyclists.

Considering the potential dangers of driving after AI and NC, appropriate measures should be adopted before certifying a driving license to screen ADHD as a predisposing factor for substance abuse and RDB. Furthermore, it is essential to equip traffic police with adequate diagnosis kits and establish heavy penalties for the offenders. In this regard, all interventions aimed to reduce traffic accidents among motorcycle drivers should be done considering the interrelationship between ADHD, RDB, and substance abuse.