Observational studyBMJ open2019
Variation in survival after out-of-hospital cardiac arrest between receiving hospitals in Japan: an observational study.
Observational study in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed.
- Dispatcher-led triage to reduce futile EMS transport for suspected out-of-hospital cardiac arrest in Japan: a narrative review and phased implementation framework.Resuscitation plus · 2026Review
- Pakistan's Emergency Medical Services (EMS) system & out-of-hospital-cardiac-arrest (OHCA): A narrative review of an EMS system of a low middle income country in context of OHCA.Resuscitation plus · 2024Review
- Initial Outcomes and Survival of Out-of-Hospital Cardiac Arrest: EuReCa Serbia Multicenter Cohort Study.Cureus · 2021Article
- Association between prehospital prognostic factors on out-of-hospital cardiac arrest in different age groups.BMC emergency medicine · 2021Article
- Response Time Threshold for Predicting Outcomes of Patients with Out-of-Hospital Cardiac Arrest.Emergency medicine international · 2021Article
- Early risk stratification after resuscitation from cardiac arrest.Journal of the American College of Emergency Physicians open · 2020Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesPatient outcomes after out-of-hospital cardiac arrest (OHCA) varies at multilevel (geographical regions, emergency medical service agencies and receiving hospitals) in the USA. However, it remains unclear whether there is a variation in patient outcomes after OHCA between relevant units of the healthcare system such as receiving hospitals in Japan. Therefore, we aimed to quantify the variation in patient outcomes after OHCA between receiving hospitals in Japan.
designSecondary analysis of the prospective multicentre OHCA registry.
settingThe Japan Association for Acute Medicine OHCA Registry, a prospective multicentre OHCA registry, including 73 medical institutions in Japan.
participants9303 adults (≥18 years old) with OHCA of medical origin, treated at 67 hospitals from June 2014 to December 2015. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome was 1-month survival after OHCA. The secondary outcome was favourable functional status at 1 month, defined as cerebral performance category scale 1 or 2. We constructed a series of multivariable hierarchical logistic regression models predicting outcomes, accounting for patient-level variables and clustering of patients within hospitals. We evaluated the adjusted 1-month survival and functional outcome for each hospital, ranked hospitals for each outcome and calculated median ORs (MORs) to quantify the between-hospital variation in outcomes.
resultsThe prevalence of 1-month survival after OHCA was 7.1% (663/9303) and that of favourable functional outcome was 3.6% (331/9303). After adjustment for patient-level factors, we observed variations in 1-month survival (range, 1.6%-13.8%; adjusted MOR 1.34; 95% CI 1.16 to 1.67) and favourable functional outcome (range, 0.7%-7.3%; adjusted MOR 1.53; 95% CI 1.10 to 2.24) between hospitals.
conclusionsWe found substantial variations in patient outcomes after OHCA within a large group of hospitals in Japan, despite adjustment for patient factors that are known to be associated with different outcomes.
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