Trends in coronary artery disease and dyslipidemia-related mortality in the USA from 1999-2020

This study examined trends and disparities in USA mortality rates associated with the co-occurrence of coronary artery disease (CAD) and dyslipidemia from 1999-2020.

Data were obtained from the multiple cause of death files using CDC WONDER, spanning 1999-2020. ICD-10 codes (I20-I25 for CAD and E78 for dyslipidemia) identified CAD and dyslipidemia-related deaths in adults aged 25 and older. Statistical analyses examined demographic and regional mortality distributions. Joinpoint regression analysis determined trends in age-adjusted mortality rates (AAMR), estimating annual percentage changes (APC).

Between 1999 and 2020, 613,969 CAD and dyslipidemia-related deaths occurred in the USA. The AAMR per 100,000 increased from 6.2 in 1999 to 19.0 in 2020. The AAMR rose sharply from 1999-2005 (APC: 10.2; 95% CI: 9.1, 11.3), increased from 2005-2010 (APC: 3.3; 95% CI: 2.6, 5.0), stabilized through 2010-2016 (APC: 0.8; 95% CI: -0.5, 1.4), and increased again from 2016-2019 (APC: 3.0; 95% CI: 1.7, 4.7). Men accounted for 59.8% of deaths, with an AAMR of 18.2, compared to 8.7 for women. Non-Hispanic (NH) American Indian (13.4) and NH white populations (13.3) had the highest AAMRs, followed by NH black or African American (12), Hispanic or Latino (9.8), and NH Asian or Pacific Islanders (9.1). The Midwest had the highest AAMR (14.1), followed by the West (13.8), South (12.2), and Northeast (11.3). Nonmetropolitan areas had higher AAMRs (14.7) compared to metropolitan areas (12.4).

Mortality due to concurrent CAD and dyslipidemia is increasing. Targeted interventions are needed to reduce mortality among vulnerable groups.