Cannabis linked to risk of self-harm, death in youth with mood disorders

Large US study finds use of the substance also increases the risk of death by homicide

Adolescents and young adults with mood disorders are at increased risk for self-harm and all-cause mortality when they also have cannabis-use disorder, a study shows.

US researchers examined Ohio Medicaid claims data on 204,780 youth aged 10-24 years who had been diagnosed with mood disorders between 2010 and 2017 to see whether risk of self-harm or death from any cause within one year of cannabis-use disorder diagnosis was increased.

Overall, 21,040 (10%) of the young people in the study had cannabis-use disorder.

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