TOPLINE Cannabis use was associated with a psychosis onset 2.5 years earlier on average compared with nonusers, a meta-analysis showed. METHODOLOGY The meta-analysis included 181 samples from 149 cohort and case-control studies published until April 2025, searched using three databases. The included studies examined the association between cannabis use and age at onset (AAO) of …
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Cannabis Use Linked to Earlier Psychosis Onset
