• January 14th, 2021

Marijuana use impairs cognitive abilities necessary for safe driving, including reaction time, road lane–tracking ability, and attention maintenance. In 2018, 45.3% of US residents aged 12 years or older reported having used marijuana in their lifetime; 10.1% were recent users.1 Although US high school seniors reporting driving after using marijuana (DAUM) decreased slightly from 14.6% in 2001 to 12.4% in 2011,2 given recent trends in the legalization of marijuana for recreational and medicinal use, teenagers may show decreases in perceived harmfulness of marijuana use and increases in general marijuana use.3,4 This study aims to estimate the prevalence of and factors associated with DAUM among US teenaged drivers.

Read the full study here.