b'CARES 2022 Annual Report Incidence & Demographics 2022 Dataset and Incidence of OHCA Events This report describes CARES data from the most recent calendar year, January 1 to December 31, 2022. CARES requires that an EMS Agency enter at least one complete calendar year of data and meet a patient lost to follow-up threshold of less than 1% to be included in the Annual National Report. The CARES 2022 National Reports can be viewed at: https://mycares.net/sitepages/reports2022.jsp.Descriptive statistics in this report are presented as frequencies or proportions for categorical variables, and median and interquartile ranges for continuous variables. Comparison of proportions were conducted using the chi-square test.The2022datasetincludes2,317EMSAgenciesand2,261Hospitals,andrepresentsapopulationof166.4million, approximately 50% of the U.S. population. In 2022, 147,736 OHCA events were reported to CARES. The crude incidence of non-traumatic, worked arrests was 88.8 per 100,000, slightly lower than the incidence rate of 92.3 per 100,000 observed in 2021. However, this was significantly greater than the average incidence rates observed pre-COVID (range: 74.3-76.5 per 100,000). Using census data to extrapolate to the U.S. population 5 , CARES estimates that there were approximately 294,683 EMS-treated, non-traumatic OHCAs in the United States last year. Demographics In 2022, CARES patients were predominately male (62.7%). Of the reported OHCA events, 97.3% (n=143,769) were adults and 2.7% (n=3,916) were children, 18 years and younger. The median age of OHCA patients was 65.0 years (mean: 62.2; SD: 19.3). The age distribution varied significantly across the sexes (Figure 2), with females having a higher median age of arrest (67.0 vs 64.0 years, p.0001). Figure 2. Age distribution of OHCA events. 5Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2020 Source: U.S. Census Bureau, Population Division. 26'