b'The study Racial and Ethnic Differences in Bystander CPR (Garcia, 2022) studied variability in the provision of bystander CPR for witnessed OHCA using data from CARES. Analyzing over 110,000 cases between 2013 and 2019, the study revealed that Black and Hispanic individuals were significantly less likely to receive bystander CPR compared to White individuals, both at home (38.5% vs. 47.4%) and in public locations (45.6% vs. 60.0%) (fig. 5). These disparities persisted even after adjusting for socioeconomic status, neighborhood racial composition, and income levels. For instance, in predominantly White neighborhoods, Black and Hispanic individuals were still less likely to receive CPR at home and in public locations. Similar patterns were observed in majority Black or Hispanic and integrated neighborhoods, as well as across high-, middle-, and low-income areas. The findings highlight systemic differences in emergency response, suggesting that factors beyond geography and incomesuch as cultural barriers, lack of CPR training opportunities, and mistrust of emergency servicesmay contribute to uneven outcomes across communities. The study emphasizes the need for culturally tailored CPR training initiatives, public awareness campaigns, and community engagement strategies designed to improve OHCA survival outcomes in priority communities. 3Finally, Long-Term Outcomes for Elderly OHCA Patients (Chan, 2023) linked CARES data with Medicare records to examine the long-term survival of elderly OHCA patients. The research examined survival rates, healthcare utilization, and post-arrest quality of life among older adults. Findings revealed that while a subset of elderly OHCA survivors achieved favorable long-term outcomes, many faced significant healthcare needs and reduced quality of life. The study highlighted the importance of post-resuscitation care strategies tailored to older patients and underscored the need for policies that support long-term recovery following OHCA. 4These publications collectively showcase the broad impact of CARES data in shaping research and potential policy aimed at improving OHCA outcomes across diverse populations andFigure 5. Temporal Trends in Bystander CPR for Persons with OHCA, 2013-2019.settings. Reprinted from The New England Journal of Medicine, Garcia RA, Spertus JA, Girotra S, et al. Racial and Ethnic Differences in Bystander CPR for Witnessed Cardiac Arrest. 2022;387(17), with permission from the Massachusetts Medical Society.55'