In Colorado, opioid deaths fall following marijuana legalization

Re:In Colorado, opioid deaths fall following marijuana legal... by hydrox24 on Monday October 16, 2017 @09:52PM (#15488062)

I believe gravypod is referring to previous years in the graph that starts the article. For instance, look at the 2008-2012 period. There is a definite downward trend.[0]

[0]: https://img.washingtonpost.com/blogs/wonkblog/files/2017/10/...

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Re:In Colorado, opioid deaths fall following marijuana legal... by gravypod on Tuesday October 17, 2017 @01:30AM (#15488879)

Yes, exactly. To prove a correlation, in my opinion, one would need....

    1. More smoothed/averaged dataset (centered rolling average ~4 months?)
    2. Explain the other extreme dips in this graph (2005, 2007, 2011)
    3. Plot similar data from other states (with and without legal marijuana)
    4. Investigate other causes (see sparrish's comment)

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