University of Cincinnati study shows rising stroke rates in adults under 55

A study conducted by researchers at the University of Cincinnati, published in the journal Neurology, indicates a significant increase in stroke occurrences among adults aged 20 to 54. Analyzing data from the Cincinnati area and northern Kentucky between 1993 and 2020, researchers found that the stroke rate rose from 33.9 cases per 100,000 people in 1993–1994 to 62.2 cases per 100,000 in 2020, representing an approximately 83 percent increase.

The surge is primarily attributed to ischemic strokes, which occur when a blood vessel supplying the brain becomes blocked. The rate of ischemic strokes rose from 23.8 to 47.3 per 100,000 people, whereas no similar increase was noted for hemorrhagic strokes.

Among younger patients, researchers observed a higher prevalence of high blood pressure, diabetes, atrial fibrillation, and psychoactive substance use. Specifically, the proportion of patients with recorded psychoactive substance use increased from 4.6 percent to 40.2 percent, with marijuana cited as a major factor. While the study notes these correlations, authors emphasize that they cannot definitively establish causality due to a lack of comparative data for non-stroke patients. Additionally, while 30-day mortality rates decreased from 11.7 percent to 9.4 percent, meaning more young people are surviving, they are increasingly living with long-term consequences.