Journal
JOURNAL OF STROKE & CEREBROVASCULAR DISEASES
Volume 21, Issue 4, Pages 299-304Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jstrokecerebrovasdis.2010.08.010
Keywords
Ischemic stroke; ethnicity; race; outcome
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Data on interethnic differences in the Asian stroke population are limited. We evaluated the relationships among various cardiovascular risk factors, stroke subtypes, and outcomes in a multiethnic Singaporean population comprising consecutive ischemic stroke patients presenting to our tertiary center over a 1-year period. Strokes were classified based on criteria used in the Trial of Org 10172 in Acute Stroke Treatment (TOAST). Functional independence at hospital discharge was defined as a modified Rankin Scale (mRS) score of 0-2. The ethnic distribution of the study population (n = 481; mean age, 64.1 +/- 11.9 years) was 74% Chinese, 17% Malay, and 9% Indian. The prevalence of risk factors was similar in the 3 ethnic groups except for diabetes (Chinese, 39.8%; Malay, 67.5%; Indian, 52.3%; P < .001). Hypertension and hypercholesterolemia were the most common cardiovascular risk factors. Lacunar stroke was the most frequent stroke subtype (47.9%). Large-artery atherosclerotic infarctions were more prevalent in Indians (25.0%), whereas lacunar infarctions occured more frequently in Chinese (51.8%; P < .01). No differences in in-hospital mortality and functional independence at discharge were seen among the 3 ethnic groups. Despite the differences in risk factors and in stroke subtypes classified by location or underlying etiology, short-term outcome measures were similar in the 3 different Asian ethnicities in Singapore.
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