• Jong Hun Kim, Dougho Park, Hyun Sun Lim, Min Jin Kang, Jun Hong Lee, Seo Yeon Yoon, and Hyoung Seop Kim.
• Department of Neurology, National Health Insurance Service Ilsan Hospital, Goyang, South Korea.
• Medicine (Baltimore). 2023 Jun 23; 102 (25): e34109e34109.

AbstractTo evaluate the effects of aspirin in the primary prevention, we evaluated disability grades and mortality after ischemic/hemorrhagic stroke and myocardial infarction (MI). A retrospective nation-wide propensity score-matched cohort study was performed using the Korean National Health Information Database. From 3,060,639 subjects who were older than 55 and performed national health examinations in 2004 and 2005, we selected the aspirin group (N = 8770) was composed of patients who had received aspirin prior to cardiovascular events. Cox proportional hazards model was used to compare the acquisition times for neurologic disability grades and survival times between the aspirin and control groups. Only in hemorrhagic stroke, the severe neurologic disability risk was higher in the aspirin group (hazard ratio [HR], 1.21; 95% confidence interval [CI], 1.02-1.42). The aspirin group was associated with higher 90-day (HR, 1.33; 95% CI, 1.23-1.44) and long-term mortality risk (HR, 1.06; 95% CI, 1.03-1.10) after pooling 3 events. The old age was a strong risk factor for 90-day mortality in hemorrhagic stroke (50s: reference; 60s: HR 2.21, 95% CI 1.50-3.25; 70s: HR 3.63, 95% CI 2.48-5.30; 80s: HR 6.69, 95% CI 4.54-9.65; >90s: HR 11.28, 95% CI 6.46-19.70). Pre-aspirin use in cardiovascular events has detrimental effects on severe neurological disability in hemorrhagic stroke and short-/long-term mortality in 3 cardiovascular events. The use of aspirin for the primary prevention especially in the elderly should be very cautious because the old age is a strong risk factor for 90-day mortality after hemorrhagic stroke.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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