Public Health Impact of Marijuana Use

"The public health burden of cannabis use is probably modest compared with that of alcohol, tobacco, and other illicit drugs. A recent Australian study96 estimated that cannabis use caused 0·2% of total disease burden in Australia—a country with one of the highest reported rates of cannabis use. Cannabis accounted for 10% of the burden attributable to all illicit drugs (including heroin, cocaine, and amphetamines). It also accounted for around 10% of the proportion of disease burden attributed to alcohol (2·3%), but only 2·5% of that attributable to tobacco (7·8%)."

Source: 

Hall, Wayne and Degenhardt, Louise, "Adverse health effects of non-medical cannabis use," The Lancet (London, United Kingdom: October 17, 2009) Vol. 374, p. 1389.
http://www.thelancet.com...
http://www.ncbi.nlm.nih.gov...

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