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High on Life? Medical Marijuana Laws and Suicide
by D. Mark Anderson, Daniel I. Rees, Joseph J. Sabia
(January 2012)
published as 'Medical Marijuana Laws and Suicides by Gender and Age' in: American Journal of Public Health, 2014, 104 (12), 2369-2376

Abstract:
Using state-level data for the period 1990 through 2007, we estimate the effect of legalizing medical marijuana on suicide rates. Our results suggest that the passage of a medical marijuana law is associated with an almost 5 percent reduction in the total suicide rate, an 11 percent reduction in the suicide rate of 20- through 29-year-old males, and a 9 percent reduction in the suicide rate of 30- through 39-year-old males. Estimates of the relationship between legalization and female suicides are less precise and are sensitive to functional form.
Text: See Discussion Paper No. 6280