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    While 23 states have legalized medical pot, the bill would prevent the federal government from interfering in states’ marijuana laws and stop the Drug Enforcement Agency from closing medical marijuana dispensaries.

    Medical Marijuana Laws Linked to Lower Traffic Fatalities

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    A new study from Columbia University Mailman School of Public Health found that states that pass medical marijuana laws see an average 11 percent decrease in traffic fatalities, and a 26 percent lower rate overall, than states without medical marijuana laws.

    The study, which charted traffic fatalities by state from 1984-2015, discovered fatalities were present in every age group, but most of all in drivers aged 15-44. Older drivers, despite being overrepresented among medical marijuana users, did not see as much of a decrease in fatalities.

    The trend was not universal. California, the first state to decriminalize medical marijuana in 1996, and New Mexico (in 2007) have both seen overall increases in traffic fatalities since implementing their medical marijuana laws. Others saw no significant deviation from the national average. On the whole, however, a significant decrease in traffic fatalities was found.

    But as any armchair statistician knows, correlation does not imply causation, and the fact that states with medical marijuana laws have a lower fatality rate that states without does not mean that medical marijuana use caused the drop in traffic fatalities.

    Silvia Martins, senior author of the study, stated that medical marijuana states "reported, on average, lower rates of drivers endorsing driving after having too many drinks." She also claimed similarities among medical marijuana states tended to have more stringent "public health laws related to driving, infrastructure characteristics, or the quality of health care systems." The study did not examine total traffic accidents, only fatalities.

    Procon.org reports that 28 states, as well as the District of Columbia, have legalized the use of medical marijuana, including the entirety of New England and the West Coast.

    Traffic fatalities in the US have steadily dropped since the 1970s. In 1984, the year the study began collecting data, over 44,000 traffic fatalities were logged, or 19 deaths per 100,000 people. In 2014, that number had dropped to 32,600 fatalities, or 10 deaths per 100,000.

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    Tags:
    traffic accident, marijuana legalization, cannabis, medical marijuana, Columbia University, New Mexico, California
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