Alcohol and opioids outweigh cannabis in disability burden

In the first study of its kind, Australian researchers calculated 13.1 million people worldwide were dependent on the drug in 2010.

Cannabis accounted for two million years lived with disability (DALYs), a smaller contribution to disease burden than alcohol or opioids, the researchers said.

And 7000 DALYs were attributed to cannabis use as a risk factor for schizophrenia, raising “doubt about the likely impact of preventing cannabis use on the incidence or prevalence of schizophrenia” in the absence of evidence of causal relationship.

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