b'CARES Annual Report 2019 | 3 ContentsIntroduction5 A Year in Review7 Why CARES Matters: A Story of Survival from OHCA8 The Cardiac Arrest Registry to Enhance Survival (CARES)11 CARES in Action15 Executive Summary21 Incidence & Demographics22 Chain of Survival27 Survival Outcomes32 2019 Research Highlights 42 List of Abbreviations & Definitions45 References45 The CARES Group 46Cover photo courtesy of Huron Valley Ambulance; Photo credit: Rhino Media.'