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ROC – Resuscitation Outcomes Consortium datum were gathered between June 1, 2014 and May 31, 2015 and includes EMS-assessed and EMS-treated out-of-hospital cardiac arrest from multiple regions of the US.

According to the ROC:

Approximately 356,461 people in the US experienced an out-of-hospital cardiac arrest (347,922 adults, 7,037 children under age 18)

22,520 of those 356,461 were witnessed by bystanders

12.4% survived to hospital discharge

Of the EMS patients who experienced non-traumatic cardiac arrest outside a hospital, and did not have bystander intervention, 10.8% survived until hospital discharge

[999] - https://www.aedsuperstore.com/resources/sudden-cardiac-arres...