Stroke in young cannabis users (18–49 years): National trends in hospitalizations and outcomes

Background: Recent legalization of therapeutic and recreational cannabis use makes it imperative to have an insight into odds and trends in young-onset stroke-related hospitalizations among cannabis users (18–49 years). Methods: The National Inpatient Sample dataset (2007–2014) was utilized to assess national trends, odds of young-onset stroke-related hospitalizations, and outcomes among cannabis users vs. nonusers using provided discharge weights, strata, and cluster design. The rates are described per 100,000 hospitalizations among cannabis users and non-users. Results: A total of 3,307,310 hospitalizations were identified among young adults with current or previous cannabis use. Of these, 34,857 (1.1%) were related to young-onset stroke. A relative increase of 13.92% (553 in 2007 to 630 in 2014; p_trend < 0.001) in young-onset stroke admissions was reported among cannabis users. The odds of any stroke (OR 1.16, 95% CI 1.14–1.19, p < 0.001) and acute ischemic stroke (OR 1.41, 95% CI 1.31–1.51, p < 0.001) hospitalizations were considerably higher among cannabis users as compared to nonusers. In-hospital mortality rates were increasing (3.7% to 4.3%) among cannabis users whereas decreasing (7.7% to 5.9%) in nonusers from 2007 to 2014 (p_trend < 0.001). The mean length of stay and the hospitalization charges showed increasing trends in cannabis-related young-onset stroke admissions. There was an increasing trend in young-onset stroke admissions among male cannabis users (578 to 701; p_trend < 0.001) but not among females (516 to 457; p_trend = 0.14). The maximum rise in the young-onset stroke-related admissions was seen in African Americans (743 to 996; p_trend < 0.001). Conclusions: We identified rising trends and higher risk (16% higher of overall young-onset stroke, 41% higher of acute ischemic stroke) of stroke-related hospitalizations and worse outcomes among cannabis users aged 18–49 years from 2007 to 2014.