| Compounds | Topics | Title | Date |
|---|---|---|---|
| cannabis | driving via review | Cannabis and alcohol in road traffic: an overview | Jul 2019 |
| The drivers impaired by cannabis are often aware of their lack of abilities and employe compensational practices. | |||
| cannabis | driving via model | Marijuana legalization and road safety: a panel study of US States | May 2019 |
| First, while treating both the state and the year as fixed effects, the resulting panel regression model estimates that the legalization of medical or recreational marijuana is not a predictor of the number of fatalities per 100,000 vehicle-miles traveled. Second, due to limitations in the regression model, a difference-in-difference analysis was conducted over the same period and found no relationship between legalization of medical marijuana and the number of fatalities per 100,000 vehicle-miles traveled. These findings suggest that concerns of policy makers and the public that legalizing marijuana will worsen road safety are not ungrounded at this time. | |||
| cannabis | driving in humans via analysis (n=3005) | Cannabis use as a risk factor for causing motor vehicle crashes: a prospective study | May 2019 |
| Positive In this sample of non-fatally injured motor vehicle drivers in British Columbia, Canada, there was no evidence of increased crash risk in drivers with THC<5ng/mL and a statistically non-significant increased risk of crash responsibility (OR=1.74) in drivers with THC>=5ng/mL. | |||
| THC,CBD | driving in humans via placebo trial (n=14) | Cannabidiol (CBD) content in vaporized cannabis does not prevent tetrahydrocannabinol (THC)-induced impairment of driving and cognition | May 2019 |
|
Ingestion Method: vaporzation 11% thc vs 11% thc+11%cbd Negative Both active cannabis types increased lane weaving during a car-following task but had little effect on other driving performance measures. Active cannabis types impaired performance on the Digit Symbol Substitution Task (DSST), Divided Attention Task (DAT) and Paced Auditory Serial Addition Task (PASAT) with impairment on the latter two tasks worse with THC/CBD equivalent cannabis. Subjective drug effects (e.g., stoned) and confidence in driving ability did not vary with CBD content. Peak plasma THC concentrations were higher following THC/CBD equivalent cannabis relative to THC-dominant cannabis, suggesting a possible pharmacokinetic interaction. | |||
| cannabis | driving in humans via study (n=3005) | Cannabis use as a risk factor for causing motor vehicle crashes: a prospective study. | May 2019 |
| In this sample of non-fatally injured motor vehicle drivers in British Columbia, Canada, there was no evidence of increased crash risk in drivers with THC<5ng/mL and a statistically non-significant increased risk of crash responsibility (OR=1.74) in drivers with THC>=5ng/mL. | |||
| cannabis | driving via study | Drivers who tested positive for cannabis in oral fluid: a longitudinal analysis of administrative data for Spain between 2011 and 2016. | Aug 2019 |
| Cannabis positivity is frequent among drivers, and polysubstance use is common. Hence, focusing on younger drivers and those with low THC concentrations is encouraged. This study provides evidence on the current implementation of roadside drug testing in Spain and aims to characterise driving under the influence (DUI) of cannabis to increase the awareness of all involved to help them avoid DUI. | |||