• Sidsel Møller, Mads Wissenberg, Kristian Kragholm, Fredrik Folke, Carolina Malta Hansen, Kristian B Ringgren, Julie Andersen, Carlo Barcella, Freddy Lippert, Lars Køber, Gunnar Gislason, Thomas Alexander Gerds, and Christian Torp-Pedersen.
• Department of Cardiology, Copenhagen University Hospital Gentofte, Hellerup, Denmark. Electronic address: sidsel.gamborg.moeller@regionh.dk.
• Resuscitation. 2020 Aug 1; 153: 10-19.

AimIt remains unclear whether socioeconomic differences exist in post-resuscitation care in out-of-hospital cardiac arrests (OHCA). We aimed to examine socioeconomic differences in coronary procedures and survival after OHCA.MethodsOHCA patients ≥30 years of cardiac cause with a hospital admission from the Danish Cardiac Arrest Registry, 2001-2014, were divided according to quartiles of household income (lowest, low, high, highest). Associations of income, coronary procedures and 30-day survival were examined by age-standardized incidence rates and incidence rate ratios (IRR), and by logistic regression.ResultsA total of 6105 patients were included. Higher-income patients were younger, males and had less comorbidity-burden. Higher-income patients had higher incidence rates for coronary angiographies both day 0-1 and day 2-7 after OHCA (day 0-1: highest: IRR 1.79, 95%CI 1.46-2.21; high: IRR 1.28, 95%CI 1.10-1.51; low: IRR 1.05, 95%CI 0.90-1.23), compared to lowest. Fifty-four percentage of the patients undergoing a coronary angiography received percutaneous-coronary-intervention or coronary-artery-bypass-grafting with no difference among three of the four groups, but lower IRR in low-income patients (IRR 0.74, 95%CI 0.61-0.89) compared to lowest. Higher-income patients had also higher odds for 30-day survival compared to lowest, both in patients with (highest: OR 1.61, 95%CI 1.12-2.32; high: OR 1.13, 95%CI 0.80-1.60; low: OR 1.14, 95%CI 0.81-1.61) and without (highest: OR 2.54, 95%CI 1.83-3.53; high: OR 1.41, 95%CI 1.06-1.87; low: OR 1.12, 95%CI 0.86-1.47) coronary angiography day 0-1.ConclusionHigher-income patients were found associated with more performed coronary angiographies after OHCA, and higher odds for 30-day survival.Copyright © 2020 Elsevier B.V. All rights reserved.

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