Evaluation of State Cannabis Laws and Rates of Self-harm and Assault | Adolescent Medicine …

Question Are state cannabis legalization laws with varying degrees of commercialization associated with rates of self-harm or assault injuries?

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One thought on “Evaluation of State Cannabis Laws and Rates of Self-harm and Assault | Adolescent Medicine …”

  1. This study is incompetent in many ways.

    First, the blatant p-hacking (performing many statistical tests on data until finding one that appears statistically significant, thus dramatically increasing and understating the risk of false positives.)

    They stratify into 8 sex/age categories and report that one category has < 5% probability of spuriousness. But then the overall probability of spuriousness is actually 8 * 5%, that is < 40%.

    They report that in states that legalized pot BUT HAD NO DISPENSARIES, self-harm injuries increased 70% among men younger than 21. But in states that legalized pot AND HAD DISPENSARIES, there was no significant effect among men younger than 21.

    The category "legalized but no dispensaries" appear to be < 2% of the data and yet that data is the source of the screaming headlines.

    Apparently it is necessary to sometimes combine injuries by self-harm with injuries by assault and sometimes treat them separately to get even these "results".

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