July 2nd, 2024

Car Crash Deaths Involving Cannabis on the Rise

Between 2000 and 2018, car crash deaths involving cannabis doubled in the US. A study in the American Journal of Public Health reveals a concerning trend of increased fatalities when cannabis and alcohol are combined while driving. The research funded by the National Institute on Alcohol Abuse and Alcoholism stresses the importance of enhancing testing methods for cannabis and addressing impaired driving issues comprehensively.

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Car Crash Deaths Involving Cannabis on the Rise

Between 2000 and 2018, the percentage of car crash deaths in the United States involving cannabis doubled, with an even higher increase in deaths involving both cannabis and alcohol, according to a study by researchers from various institutions. The study, published in the American Journal of Public Health, highlights that as cannabis policies have become more lenient, cannabis and alcohol are increasingly being used together while driving. This trend contradicts the idea that liberalizing cannabis policies could reduce alcohol use. The study suggests that cannabis involvement in car crashes may be undermining efforts to reduce alcohol-impaired driving deaths. The research, funded by the National Institute on Alcohol Abuse and Alcoholism, analyzed 19 years of data and found that cannabis-involved crashes are more likely to result in the deaths of passengers and individuals under 35. The study emphasizes the need for improved testing methods for cannabis and continued efforts to reduce deaths from impaired driving involving alcohol, cannabis, and other substances.

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By @the-dude - 4 months
The title implies cannabis involvement in the crashes, but this is not at all clear, from TFA:

Most cannabis tests do not distinguish between any past use and acute intoxication, and implementing standardized thresholds is challenging due to tolerance from regular use.

By @shadowgovt - 4 months
Without additional signal, this news basically boils down to "An illegal thing is made legal. People in car accidents are found to have used the legal thing." Not implying that cannabis doesn't impair one's ability to operate a motor vehicle, but there isn't nearly enough data in this story to do anything scientifically useful with that notion.

Are we seeing a spike in traffic fatalities? Are roads getting less safe? Because without some reason to chase the numbers, we're just left with "people in car accidents did legal things before getting in those accidents." Like... Did you know accidents involving cellphones went up after the invention of the cellphone? And good thing we finally ended the reign of terror that is accidents involving tape-deck / audio jack converters thanks to Bluetooth...

(ETA): The trend in accidents over the past decade has been mostly flat, with a bit of a spike as of late. Hard to disambiguate the cause of that spike between other causes and "After COVID we dumped a lot of people back onto the road who hadn't been driving for a year or two." https://www.iihs.org/topics/fatality-statistics/detail/yearl...

By @htek - 4 months
Testing for marijuana does not provide accurate data with respect to when it was consumed. It could have been a factor in the crash, or it could have been consumed days to weeks in the past, as the study author states: “Our testing methods for cannabis remain suboptimal and individuals can test positive for cannabis weeks after they have consumed it.”
By @hayertjez - 4 months
Meanwhile cars are allowed to get bigger, heavier and thus more dangerous (SUV and Pickup trucks). See https://youtu.be/jN7mSXMruEo?si=GvZy7BC7AqwsFmUW Not as an excuse for a driver to take seat after drinking too much alcohol or taking cannabis. I find it a rearguard action by concentrating too much on the driver and not on the weapon (car) itself. In my opinion a more difficult but more worthwhile is to make infrastructure more safe in general.
By @sethammons - 4 months
> Between 2000 and 2018, the percentage of car crash deaths in the United States involving cannabis have doubled

I assume a higher percent of people have access to and are using cannabis during over same time period, lowering the scale of the effect

By @xnx - 4 months
Hard to know what level of causality there is for cannabis and car crashes. Smartphones on the other hand are known to distract our eyes, hands, and attention. Would love to see more automated/camera enforcement of cell phone use while driving. If it were a finable and enforced offense, my city could make millions from any given intersection over the course of a week.
By @CSactuary - 4 months
Not good.

I was a proponent for cannabis legalization several years ago.. but seeing it in action, not so sure anymore. And I don’t even live in a state where it’s legal. But seems like half the work force is stoned now. Doesn’t bother me if you want to get high at home. But shouldn’t be high in public if it’s going to inconvenience others or put others at risk.

By @bluedino - 4 months
Ever since it became legal here it's so common to have the stench coming from the car in front of you.