心停止後のDNAR指示は生存率格差の主因ではないと判明 (Early Do-Not-Attempt-Resuscitation Orders Aren’t Driving Disparities in Cardiac Arrest Survival)

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2026-01-27 イェール大学

米イェール大学(Yale University)の研究チームは、院外心停止における人種や社会的背景による転帰格差について、早期のDNAR(蘇生拒否)指示が主因ではないことを示した。従来、救命率の差はDNAR指示の有無が影響している可能性が指摘されてきたが、本研究では大規模データを用いて解析した結果、DNARの早期設定自体は格差を十分に説明できないと結論づけた。むしろ、救急対応の質、医療資源へのアクセス、基礎疾患や社会経済的要因など、構造的・制度的要因がより大きく関与している可能性が示唆された。本成果は、心停止医療における公平性向上のためには、DNARに焦点を当てるだけでなく、医療体制全体の改善が必要であることを示している。

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人種と民族、そして院内心停止後の早期蘇生処置拒否指示 Race and Ethnicity and Early Do Not Attempt Resuscitation Orders After In-Hospital Cardiac Arrest

Caroline Raymond-King, MD, PhD; Xunyun Wan, MS; Ryan Cook, PhD, MSPH,et al
JAMA Network Open  Published:January 13, 2026
DOI:10.1001/jamanetworkopen.2025.53504

心停止後のDNAR指示は生存率格差の主因ではないと判明 (Early Do-Not-Attempt-Resuscitation Orders Aren’t Driving Disparities in Cardiac Arrest Survival)

Key Points

Question Do American Indian or Alaskan Native, Black, or Hispanic patients have different rates of early do not attempt resuscitation (DNAR) orders compared with White patients after in-hospital cardiac arrest?

Findings In this cohort study including 93 843 patients from more than 350 hospitals, American Indian or Alaska Native, Black, and Hispanic patients were less likely to have early DNAR orders entered, compared with White patients; those with early orders had no difference in survival to discharge compared with White patients.

Meaning This cohort study found that after in-hospital cardiac arrest, American Indian or Alaska Native, Black, and Hispanic patients were less likely to have early DNAR orders than White patients, and there were no differences in survival among patients with early DNAR orders placed.

Abstract

Importance Black and Hispanic patients have lower survival rates for in-hospital cardiac arrest (IHCA) than White patients. Whether this is because do not attempt resuscitation (DNAR) orders for successfully resuscitated patients with IHCA are variable among different races and ethnicities remains unknown.

Objective To understand whether American Indian or Alaskan Native, Black, or Hispanic patients have different rates of early DNAR orders compared with White patients, and to examine whether survival differences by race and ethnicity persist among patients with early entry of DNAR orders.

Design, Setting, and Participants This prospective cohort study used data from the American Heart Association’s Get With the Guidelines – Resuscitation database, which includes IHCA data from more than 350 hospitals in the US from 2018 to 2013. Patients were aged at least 18 years, experienced an index IHCA, and were successfully resuscitated while on an admitted unit. Data were analyzed from September 26, 2024, through February 8, 2025.

Exposure IHCA.

Main Outcomes and Measures Main outcomes were associations of race and ethnicity with entry of early DNAR orders and, among patients early DNAR orders, the associations of race with survival to hospital discharge.

Results From 2018 to 2023, 93 843 patients (25 386 patients [27.1%] aged 60-69 years; 56 533 [60.2%] male) achieved ROSC after IHCA, including 2380 American Indian or Alaska Native patients (2.5%), 764 Asian patients (0.8%), 21 261 Black patients (22.7%), 6998 Hispanic patients (7.5%), and 56 989 White patients (60.7%). Overall, 25.3% and 37.4% of White patients had DNAR orders at 12 hours and 72 hours, respectively, compared with 21.3% and 33.4% of American Indian or Alaska Native patients, 21.4% and 32.7% of Black patients, and 22.2% and 33.2% of Hispanic patients. Compared with White patients, American Indian or Alaska Native, Black, and Hispanic patients were less likely to have DNAR orders entered within 12 hours (American Indian or Alaska Native: odds ratio [OR], 0.78 [95% CI, 0.67-0.91]; Black: OR, 0.74 [95% CI, 0.69-0.79]; Hispanic: OR, 0.90 [95% CI, 0.82-0.99]) or within 72 hours (American Indian or Alaska Native: OR. 0.86 [95% CI, 0.76, 0.98]; Black: OR, 0.73, [95% CI, 0.69-0.77]; Hispanic: OR, 0.89 [95% CI, 0.83, 0.97]). A total of 813 American Indian or Alaska Native patients (34.2%), 7168 Black patients (33.7%), and 2417 Hispanic patients (34.5%) with return of spontaneous circulation survived to discharge, compared with 22 226 White patients (39.0%). In adjusted analyses, among patients with an early DNAR order entered before 72 hours, there was no significant difference in survival to hospital discharge compared with White patients.

Conclusions and Relevance In this cohort study of patients successfully resuscitated from IHCA, American Indian or Alaska Native, Black, and Hispanic patients were less likely to have early DNAR orders than White patients. There were no differences in survival among patients with early DNAR orders placed.

医療・健康
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