• Heidi Mochari-Greenberger, Ying Xian, Anne S Hellkamp, Phillip J Schulte, Deepak L Bhatt, Gregg C Fonarow, Jeffrey L Saver, Mathew J Reeves, Lee H Schwamm, and Eric E Smith.
• Columbia University Medical Center, New York, NY (H.M.G.).
• J Am Heart Assoc. 2015 Aug 12; 4 (8): e002099.

BackgroundDifferences in activation of emergency medical services (EMS) may contribute to racial/ethnic and sex disparities in stroke outcomes. The purpose of this study was to determine whether EMS use varied by race/ethnicity and sex among a current, diverse national sample of hospitalized acute stroke patients.Methods And ResultsWe analyzed data from 398,798 stroke patients admitted to 1613 Get With The Guidelines-Stroke participating hospitals between October 2011 and March 2014. Multivariable logistic regression was used to evaluate the associations between combinations of racial/ethnic and sex groups with EMS use, adjusting for potential confounders including demographics, medical history, and stroke symptoms. Patients were 50% female, 69% white, 19% black, 8% Hispanic, 3% Asian, and 1% other, and 86% had ischemic stroke. Overall, 59% of stroke patients were transported to the hospital by EMS. White women were most likely to use EMS (62%); Hispanic men were least likely to use EMS (52%). After adjustment for patient characteristics, Hispanic and Asian men and women had 20% to 29% lower adjusted odds of using EMS versus their white counterparts; black women were less likely than white women to use EMS (odds ratio 0.75, 95% CI 0.72 to 0.77). Patients with weakness or paresis, altered level of consciousness, and/or aphasia were significantly more likely to use EMS than patients without each symptom; the observed racial/ethnic and sex differences in EMS use remained significant after adjustment for stroke symptoms.ConclusionsEMS use differed by race/ethnicity and sex. These contemporary data document suboptimal use of EMS transport among US stroke patients, especially by racial/ethnic minorities and those with less recognized stroke symptoms.© 2015 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley Blackwell.

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