

This analytical report provides a mid-year update on the 2021 ESO EMS Index, comparing critical metrics from the first half of 2021 with 2020 data. It highlights trends in stroke assessment, ketamine administration, overdose rates, and bystander CPR, based on over 4.6 million 911 records. The report aims to inform EMS leaders on performance benchmarks and best practices to enhance patient outcomes and operational efficiency.