b'CARES Annual Report 2019 | 39Public Reporting of State Aggregate Metrics Survival after out-of-hospital cardiac arrest varies between regions in the United States. With the growing number of CARES state participants, there is a unique opportunity to present aggregate metrics by state to better understand OHCA incidence, survival outcomes, and bystander intervention rates nationwide. The table below shows aggregate metrics for state participants that had at least 50% population catchment in 2019. 17 states and the District of Columbia voluntarily agreed to participate in reporting these metrics.The included states have a wide range of both population catchment (611,330 to over 24 million) as well as incidence rate (41.8126.1 per 100,000; 3-fold difference). There was also marked variability in community interventions, with bystander CPR rates ranging from 33.673.3% (a 2-fold difference) and public AED use rates ranging from 2.715.1% (a more than 5-fold difference), as well as patient outcomes (overall survival: 6.016.0%; Utstein survival: 22.144.1%).Table 4. Public Reporting of State Aggregate Metrics, 2019OHCA Incidence Non-Traumatic Etiology SurvivalBystander Intervention Rates Rates CARES Cases2019 CARES2019 Total State% PopulationIncidence RateOverall SurvivalUtstein SurvivalPublic AED Use Reported PopulationPopulation Covered (per 100,000) to Hospital(%) CPR (%) (%)Catchment Discharge (%)National 100,956 131,905,913 328,239,523 40.1% 76.5 10.5 33.2 41.2 12.2StateAlaska 394 611,330 731,545 83.6% 64.4 16.0 44.1 73.3 2.7California 16100 24,681,023 39,512,223 62.5% 65.2 9.0 32.1 43.5 12.0Colorado 2074 3,616,495 5,758,736 62.8% 57.4 12.3 39.4 41.7 15.1Delaware 1165 967,171 973,764 99.3% 120.5 11.8 30.4 36.2 6.5Hawaii 1321 1,415,872 1,415,872 100.0% 93.3 11.3 31.4 49.2 13.2Michigan 7727 7,896,597 9,986,857 79.1% 97.9 8.7 30.3 40.2 13.9Minnesota 2537 4,887,375 5,639,632 86.7% 51.9 13.5 38.5 37.5 14.1Mississippi 1825 1,778,516 2,976,149 59.8% 102.6 6.0 22.1 36.5 10.1Montana 507 642,348 1,068,778 60.1% 78.9 11.2 36.8 48.5 5.2New Hampshire 1059 1,359,711 1,359,711 100.0% 77.9 10.2 28.2 53.5 14.4North Carolina 5965 7,114,453 10,488,084 67.8% 83.8 12.6 32.4 37.1 13.6Oregon 2410 3,895,582 4,217,737 92.4% 61.9 14.7 35.6 57.4 13.9Pennsylvania 8013 9,973,687 12,801,989 77.9% 80.3 9.5 31.4 36.4 10.0South Carolina 2551 2,760,590 5,148,714 53.6% 92.4 11.8 28.2 37.4 10.9Utah 1321 3,161,105 3,205,958 98.6% 41.8 8.6 26.8 36.9 10.2Vermont 481 623,989 623,989 100.0% 77.1 10.2 36.0 43.0 6.6Washington 4210 7,273,113 7,614,893 95.5% 57.9 15.0 42.5 57.3 12.2District of886 702,455 705,749 99.5% 126.1 7.7 31.0 33.6 6.9Columbia CARES sincerely appreciates the willingness of state participants to voluntarily share this information. Reporting of state variations in OHCA outcomes validates the importance of data collection for OHCA, promotes the sharing of best practices and helps facilitate system improvements to save lives nationwide.'