Sudden cardiac death (SCD) remains a major cause of mortality in the United States, but a new study shows that profound racial and geographic gaps persist despite advances in care. After a steady decline from 1999 to 2018, mortality from SCD surged after 2018, with rates climbing particularly for men, Black Americans, and residents of rural and southern states. Researchers found that non-Hispanic Black individuals consistently had the highest age-adjusted mortality rates, at 5.66 per 100,000, compared to 3.98 for non-Hispanic White adults. Asian Americans had the lowest rate at 1.20 per 100,000, with Hispanic and Native American populations falling in between.
Barriers driving these disparities include “limited access to health care, underrepresentation in research, lower detection rates,” and higher odds for Black patients to experience SCD as the first sign of heart disease. Minority groups also tend to receive less counseling about cardiac risk and are less likely to get preventive therapies such as implantable cardioverter-defibrillators. Rural communities face additional challenges, as the study found more than double the mortality rate in non-metropolitan counties compared to urban areas. Factors such as poverty, longer ambulance times, and hospital closures further elevate risk for those outside major cities.
Socioeconomic stress, racial discrimination, and imbalanced access to timely emergency interventions contribute to the persistent gaps in SCD mortality. Researchers recommend policies like expanding Medicaid in non-metropolitan states, improving cardiac care access, and promoting CPR and defibrillator training, especially in high-risk communities.
See: “Demographics and Trends of Sudden Cardiac Death-Related Mortality in the United States, 1999 to 2022” (September 11, 2025)
