AIM It 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. METHODS OHCA 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. RESULTS A total of 6,105 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. CONCLUSION Higher patient-income was found associated with more performed coronary angiographies after OHCA, and higher odds for 30-day survival.

中文翻译：

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院外心脏骤停后冠状动脉手术和生存的社会经济差异：丹麦全国性研究

目的 目前尚不清楚院外心脏骤停 (OHCA) 的复苏后护理是否存在社会经济差异。我们的目的是检查 OHCA 后冠状动脉手术和生存的社会经济差异。方法 根据家庭收入的四分位数（最低、低、高、最高），将 2001-2014 年丹麦心脏骤停登记处入院的 OHCA 患者 ≥30 年的心脏原因进行划分。通过年龄标准化发病率和发病率比 (IRR) 以及逻辑回归检查收入、冠状动脉手术和 30 天存活率之间的关联。结果 共纳入 6,105 名患者。收入较高的患者更年轻，为男性，合并症负担更轻。高收入患者在 OHCA 后第 0-1 天和第 2-7 天的冠状动脉造影发生率较高（第 0-1 天：最高：IRR 1.79，95%CI 1.46-2.21；高：IRR 1.28，95%CI 1.10 -1.51；低：IRR 1.05，95% CI 0.90-1.23)，与最低相比。接受冠状动脉造影术的患者中有 54% 接受了经皮冠状动脉介入治疗或冠状动脉搭桥术，四组中的三组之间没有差异，但低收入患者的 IRR 较低（IRR 0.74，95%CI） 0.61-0.89) 相比最低。高收入患者的 30 天生存率也高于最低生存率，无论是在以下患者中（最高：OR 1.61，95%CI 1.12-2.32；高：OR 1.13，95%CI 0.80-1.60；低：OR 1.14 , 95%CI 0.81-1.61) 和无（最高：OR 2.54，95%CI 1.83-3.53；高：OR 1.41，95%CI 1.06-1.87；低：OR 1.12，95%CI 0.86-1。47)冠状动脉造影第0-1天。结论 OHCA 术后患者收入越高，冠状动脉造影的次数越多，30 天生存率越高。