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Stroke recurrence is more frequent in Blacks and Hispanics
K F Sheinart1, S Tuhrim, D R Horowitz
1Department of Neurology, Mount Sinai School of Medicine, New York, N.Y. 10029, USA. sheink01@doc.mssm.edu
Neuroepidemiology
|August 14, 1998
Summary
Black and Hispanic individuals face higher stroke recurrence risks compared to white individuals, particularly after a first-ever stroke. Other traditional risk factors did not significantly impact recurrence rates in this study.
Area of Science:
- Neurology
- Epidemiology
- Public Health
Background:
- Stroke recurrence poses a significant health burden.
- Understanding ethnic disparities in stroke recurrence is crucial for targeted interventions.
- Previous research has not fully elucidated ethnic differences in stroke recurrence risk.
Purpose of the Study:
- To quantify stroke recurrence rates in a diverse population.
- To identify determinants of recurrent stroke, with a focus on ethnicity.
- To compare recurrence risks among Black, Hispanic, and White patients.
Main Methods:
- Prospective cohort study of 299 acute stroke patients (110 Black, 57 Hispanic, 132 White).
- Follow-up period of mean 17.8 months to assess stroke recurrence.
- Data collected included demographics, medical history, stroke subtype, and severity.
Main Results:
- Unadjusted relative risk of stroke recurrence was 2.0 for Blacks and 2.6 for Hispanics compared to Whites.
- Ethnicity significantly influenced recurrence risk only in first-ever strokes (Blacks: 2.4, Hispanics: 2.9 vs. Whites).
- No other identified risk factors were associated with stroke recurrence.
Conclusions:
- Ethnic background, particularly among Black and Hispanic populations, is a significant factor associated with stroke recurrence.
- The association between ethnicity and stroke recurrence is more pronounced following a first-ever stroke.
- Further research is needed to explore the underlying mechanisms driving these ethnic disparities in stroke recurrence.