For the past 6 months, DUIC within 2 hours of use was reported by 56.4 percent of the sample, DUIC while a "little high" was reported by 50.5 percent, and "very high" was reported by 21.1 percent.
A new study conducted by researchers from the University of Michigan Addiction Center shows that more than half of the people who take medical marijuana for chronic pain say they have driven under the influence of cannabis within two hours of using it at least once in the past six months.
Assistant professor of psychiatry and practicing clinical psychologist Erin Bonar said in a UM Health Lab release that the results are troubling. "These people overlap. They could have said yes to all three questions".
At the most advanced driving simulator in the world, at the University of Iowa, a study on the effects of driving under the influence of cannabis has been in high gear. He believes the use of medical marijuana and the legislation of it has gotten ahead of the science. "The safest strategy is to not drive at all on the day you used marijuana". Researchers surveyed nearly 800 people from MI and asked about their history of driving within two hours of using cannabis in the past six months.
"We just don't know how long the amount a person uses is going to be in their system and affect their driving". Given that cannabis use has been hard to study while the drug is still considered an illicit substance on the federal level, there is no standard for drivers under the influence of marijuana, like a BAC level for alcohol.
Bonar said there is uncertainty about how marijuana might affect driving for chronic daily marijuana users.