• Nichole Bosson, Andrea Fang, Amy H Kaji, Marianne Gausche-Hill, William J French, David Shavelle, Joseph L Thomas, and James T Niemann.
• Los Angeles County Emergency Medical Services Agency, 10100 Pioneer Blvd, Santa Fe Springs, CA, United States; Harbor-UCLA Medical Center and the Los Angeles Biomedical Research Institute at Harbor-UCLA, 1000 W Carson Street, Torrance, CA, United States; The David Geffen School of Medicine at UCLA, 405 Hilgard Ave, Los Angeles, CA, United States. Electronic address: nbosson@dhs.lacounty.gov.
• Resuscitation. 2019 Apr 1; 137: 293429-34.

BackgroundThis study evaluates differences in out-of-hospital cardiac arrest (OHCA) characteristics, interventions, and outcomes by race/ethnicity.MethodsThis is a retrospective analysis from a regionalized cardiac system. Outcomes for all adult patients treated for OHCA with return of spontaneous circulation (ROSC) were identified from 2011-2014. Stratifying by race/ethnicity with White as the reference group, patient characteristics, treatment, and outcomes were evaluated. The adjusted odds ratios (OR) for survival with good neurologic outcome (cerebral performance category 1 or 2) were calculated.ResultsThere were 5178 patients with OHCA; 290 patients excluded for unknown race, leaving 4888 patients: 50% White, 14% Black, 12% Asian, 23% Hispanic. In univariate analysis, compared with Whites, Blacks had fewer witnessed arrests (83% vs 86%, p = 0.03) and less bystander CPR (37% vs 44%, p = 0.005), were less likely to undergo coronary angiography (14% vs 22%, p < 0.0001), and less likely to receive PCI (32% vs 54%, p < 0.0001). Asians presented less often with a shockable rhythm (27% vs 34%, p = 0.001) and were less likely to undergo angiography (15% vs 22%, p < 0.0001). Hispanics presented less often with a shockable rhythm (31% vs 34%, p = 0.03), had fewer witnessed arrests (82% vs 86%, p = 0.001) and less bystander CPR (37% vs 44%, p = 0.0001). In multivariable analysis, Hispanic ethnicity was associated with decreased favorable neurologic outcome (OR 0.78 [95%CI 0.63-0.96]). Outcomes for Asians and Blacks did not differ from Whites. When accounting for clustering by hospital, race was no longer statistically significantly associated with survival with good neurologic outcome.ConclusionWe identified important differences in patients with OHCA according to race/ethnicity. Such differences may have implications for interventions; for example, emphasis on bystander CPR instruction in Black and Hispanic communities.Copyright © 2019 Elsevier B.V. All rights reserved.

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