Cannabis Legalization and Detection of Tetrahydrocannabinol (THC) in Injured Drivers

A recent study funded by the Canadian Institutes of Health Research found that after cannabis legalization, the prevalence of moderately injured drivers with a THC level of at least 2 ng per milliliter in participating British Columbia trauma centers more than doubled. The increase was largest among older drivers and male drivers. During the study period, 4339 drivers (3550 before legalization and 789 after legalization) met the inclusion criteria. Before legalization, a THC level greater than 0 was detected in 9.2% of drivers, a THC level of at least 2 ng per milliliter in 3.8%, and a THC level of at least 5 ng per milliliter in 1.1%. After legalization, the values were 17.9%, 8.6%, and 3.5%, respectively.

You can read the full study published in the New England Journal of Medicine here: https://www.nejm.org/doi/full/10.1056/nejmsa2109371

For more information on the International Academy on the Science and Impact of Cannabis, and to join, please visit www.IASIC1.org.

Visit the IASIC Library here (https://iasic1.org/library/). The IASIC Library is intended as a user-friendly reference of the published medical literature.

Like this article?

Share on Facebook
Share on Twitter
Share on Linkdin
Share on Pinterest

Leave a comment

Related Posts

Major Uptick Reported in Cannabis Vaping for All Adolescents

Cannabis vaping is increasing as the most popular method of cannabis delivery among all adolescents in the U.S., as is the frequency of cannabis vaping, according to research at Columbia University Mailman School of Public Health. The study found that the frequency of vaping cannabis among adolescents from all demographic groups is reported at six

The phytochemical diversity of commercial Cannabis in the United States

The legal status of Cannabis is changing, fueling an increasing diversity of Cannabis-derived products. Because Cannabis contains dozens of chemical compounds with potential psychoactive or medicinal effects, understanding this phytochemical diversity is crucial. The legal Cannabis industry heavily markets products to consumers based on widely used labeling systems purported to predict the effects of different

What is THCP?

THCP, which is short for tetrahydrocannabiphorol and scientifically known as (-)-Trans-Δ9-tetrahydrocannabiphorol, is a natural cannabinoid and analog of THC present in varieties of cannabis. It’s thought to be 33 times more active at cannabinoid 1 (CB1) receptors than THC, causing an intense and intoxicating euphoric high. THCP’s legality is stuck between conflicting federal legislation. It’s not

Cannabis Legalization and Detection of Tetrahydrocannabinol (THC) in Injured Drivers

A recent study funded by the Canadian Institutes of Health Research found that after cannabis legalization, the prevalence of moderately injured drivers with a THC level of at least 2 ng per milliliter in participating British Columbia trauma centers more than doubled. The increase was largest among older drivers and male drivers. During the study

Scroll to Top