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Lipid profiles and ischemic stroke risk: variations by sex within racial/ethnic groups

Authors Gezmu T, Schneider D, Demissie K, Lin Y, Giordano C, Gizzi M

Received 24 January 2014

Accepted for publication 5 March 2014

Published 30 May 2014 Volume 2014:6 Pages 585—595

DOI https://doi.org/10.2147/IJWH.S61274

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2


Tefera Gezmu,1 Dona Schneider,1 Kitaw Demissie,2 Yong Lin,2 Christine Giordano,3 Martin S Gizzi4

1Edward J. Bloustein School of Planning and Public Policy, Rutgers, the State University of New Jersey, New Brunswick, NJ, 2Rutgers School of Public Health, Department of Epidemiology, Piscataway, NJ, 3Rutgers New Jersey Medical School, Newark, NJ, 4New Jersey Neuroscience Institute at JFK Medical Center and Seton Hall University, Edison, NJ, USA

Abstract: Evidence implicates lipid abnormalities as important but modifiable risk factors for stroke. This study assesses whether hypercholesterolemia can be used to predict the risk for etiologic subtypes of ischemic stroke between sexes within racial/ethnic groups. Data elements related to stroke risk, diagnosis, and outcomes were abstracted from the medical records of 3,290 acute stroke admissions between 2006 and 2010 at a regional stroke center. Sex comparison within racial/ethnic groups revealed that South Asian and Hispanic men had a higher proportion of ischemic stroke than women, while the inverse was true for Whites and African Americans (P=0.0014). All women, except South Asian women, had higher mean plasma total cholesterol and higher blood circulating low-density lipoprotein levels (≥100 mg/dL) than men at the time of their admissions. The incidence of large-artery atherosclerosis (LAA) was more common among women than men, except among Hispanics, where men tended to have higher incidences. A regression analysis that considered patients diagnosed with either LAA or small-artery occlusion etiologic subtype as the outcomes and high-density lipoproteins and triglycerides as predictors showed inconsistent associations between lipid profiles and the incidence of these subtypes between the sexes within racial/ethnic groups. In conclusion, our investigation suggests that women stroke patients may be at increased risk for stroke etiologic subtype LAA than men. Although the higher prevalence of stroke risk factors examined in this study predicts the increase in the incidence of the disease, lack of knowledge/awareness and lack of affordable treatments for stroke risk factors among women and immigrants/non-US-born subpopulations may explain the observed associations.

Keywords: ischemic stroke, risk factors, sex, race/ethnicity, cerebrovascular disease, comorbidities


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