ER visits among seniors rose after cannabis legalization, study finds
Global News
The number of people aged 65 and over checking into ERs in Ontario for what amounted to cannabis poisoning grew sharply over an eight-year period.
A new study has linked the legalization of cannabis with a rise in the number of Ontario seniors visiting emergency rooms.
The number of people aged 65 and over checking into ERs in Ontario for what amounted to cannabis poisoning grew sharply over an eight-year period, particularly after cannabis was legalized, according to the report published Monday in the peer-reviewed medical journal JAMA Internal Medicine.
“These are not people getting too high, being giddy and laughing,” said Dr. Nathan Stall, a geriatric specialist at Sinai Health in Toronto and lead author of the report.
“These are people very sick to the point where health-care practitioners, without knowing that they’ve consumed cannabis, consider other serious health conditions, like stroke, serious infection (and) serious metabolic abnormalities.”
The study examined three periods over eight years, using deidentified Ontario Ministry of Health administrative data to get a sense of shifts in ER visits by older adults.
The first window covered pre-legalization spanning from early 2015 until just before legalization in October 2018, while the second period started when dried cannabis sales were rolled out. The third span covered nearly three years after edibles were introduced into the market in January 2020.
The study reported the pre-legalization rate of emergency room visits among older adults, which stood at 5.8 per 100,000, soared to 15.4 per 100,000 during the first phase of legalization. The rate rose again to 21.1 per 100,000 once edibles were legalized.
Researchers suggest the data may underestimate the magnitude of cannabis poisonings in older adults, since the study only tracks ER visits and doesn’t account for people who sought care elsewhere or not at all.
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