Really? Because you haven't considered that these people are self-medicating with marijuana? I'm going to be doing plenty of marijuana after my next stroke.
My 13 reasons for marijuana use post-stroke.
Don't follow me, I'm not medically trained and I don't have a Dr. in front of my name.
Growing Evidence Supports the Link Between Cannabis Use and Psychosis Risk
There is a significant, age-dependent association between cannabis use and psychotic disorder risk – as adolescence appears to be a particularly susceptible period for cannabis-related psychosis. These study results were recently published in Psychological Medicine.
Cannabis use has been previously associated with an increased risk for psychotic disorders. However, the debate over causality persists due to methodological limitations and the rising prevalence of cannabis over time.
To this aim, investigators conducted an observational longitudinal study to understand the relationship between cannabis use and subsequent risk for psychotic disorders among adolescents and young adults residing in Ontario, Canada. The investigators used population-based survey data from the Canadian Community Health Survey to identify Ontario residents who completed the survey between 2009 and 2012 and were aged 12 to 24 years at the time of survey completion. Additionally, the investigators linked the survey data with health data from the Institute for Clinical Evaluative Sciences to investigate outcomes up to 2018. Cannabis consumption was assessed based on self-reported use over the past year. The primary outcomes of interest included the number of days until the first outpatient physician visit, emergency department visit, or hospital discharge related to a psychotic disorder.
A total of 11,363 participants were included in the final analysis. The mean (interquartile range [IQR]) age of participants was 18.3 (15.2-21.3) years, 51.0% were boys/men, 67.1% were White, and 86.4% lived in an urban area. Among the respondents, 23.4% (n=2,659) reported using cannabis in the past year. During the follow-up period, 1.2% of respondents utilized health services for psychotic disorders, while 4% were censored due to loss of health insurance registration or death.
The investigators found that cannabis use was significantly associated with psychotic disorders during adolescence (adjusted hazard ratio [aHR], 11.2; 95% CI, 4.6 to 27.3), but not during young adulthood (aHR, 1.3; 95% CI, 0.6 to 2.6). Adolescents who used cannabis also had a substantially higher risk for hospitalizations and emergency department visits (aHR, 26.7; 95% CI, 7.7 to 92.8), while there was no substantial risk observed in young adulthood (aHR, 1.8; 95% CI, 0.6 to 5.4).
The investigators found that across all incident psychotic disorder hospitalizations and emergency department visits among adolescents, 77.8% (95% CI, 56.4%-99.3%) of adolescents had reported past-year cannabis use and 82.3% (95% CI, 64.7%-100.0%) had reported lifetime use.
“Based on the precautionary principle, as more jurisdictions move to liberalize cannabis use and perception of harm declines among youth, this study suggests that evidence-based cannabis prevention strategies for adolescents are warranted,” the investigators concluded.
These study findings may be limited, given the reliance on self-reported data during a period of cannabis prohibition – which may have led to underreporting – and the inability to establish causality due to the observational study design.
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