… cardiac arrest in 132 US counties. We used hierarchical regression models to examine
county-level variation … the contribution of demographics, cardiac arrest characteristics, bystander …

… earlier work describing the international variation in the structure … status, arrest witnessed by
bystander, arrest witnessed by EMS … (CPR), cardiac arrest, cause of arrest (aetiology), chest …

… the degree to which variation persists even after adjusting for … large national in‐hospital
cardiac arrest registry, we examined … of patient and cardiac arrest characteristics to ensure robust …

… cardiac arrest) to identify IHCA cases because this may lead to erroneous estimates. Cardiac
arrest … Similarly, cardiac arrest may also be coded in patients with do-not-resuscitate (DNR) …

… However, the magnitude of regional variation in medication use is much less than the
magnitude of variation in cardiac arrest observed in the present study. Therefore, differences in …

… We identified 93 342 adults with an in‐hospital cardiac arrest … and myocardial infarction, and
cardiac arrests due to shockable … , and mechanical ventilation before arrest (P<0.001 for all). …

… This study and the Danish Cardiac Arrest Registry is supported by TrygFonden, which …
cardiac arrest-area. A great thanks to the EMS personnel for supplying the Danish Cardiac Arrest …

… A 5-year period was chosen to ensure a reasonable timeframe from diagnosis to cardiac
arrest. The International Classification of Disease System (ICD-10) was used to define …

… -of-hospital cardiac arrest (OHCA) outcomes, particularly in neurological outcome. This study
aimed to determine whether there is a significant regional variation in survival outcomes of …

… We examined variation in functional outcomes by center after … data within the International
Cardiac Arrest Registry was … existing functional status, and arrest-related factors with treatment …