Investigating mortality trends and disparities in tricuspid valve disorder: a U.S. nationwide study from 1999 to 2023

Tricuspid valve disorder (TVD), a critical aspect of valvular heart disease (VHD), significantly impacts cardiovascular health, yet its mortality trends are not well understood. This study aimed to investigate demographic and geographic disparities in TVD-related mortality across the United States from 1999 to 2023. Using data from the CDC WONDER database, death certificates were analyzed to identify TVD-related fatalities, and age-adjusted mortality rates (AAMRs) were calculated per 1,000,000 individuals. Joinpoint regression analysis was conducted to assess annual percent changes (APCs) in mortality rates. A total of 72,805 deaths were attributed to TVD. An initial steep increase in mortality rate from 1999 to 2003 (APC: 7.9%; 95% CI: 3.9 to 14.1) followed by a stable period from 2003 to 2014 (APC: 0.1%; 95% CI: -2.7 to 1.0) and a sharp increase in AAMR from 2014 to 2023 (APC: 6.5%; 95% CI: 5.2 to 8.4). Females consistently had higher mortality rates than males, with a sharper increase after 2012. Racial and ethnic disparities were evident, with American Indian and white populations experiencing higher mortality rates than black populations. Geographic disparities were also noted, with states like Oregon, Minnesota, and Vermont, as well as the West census region, showing significantly higher mortality rates. Rural areas had higher mortality rates compared to urban areas. TVD-related mortality trends have followed a complex trajectory, with marked disparities across demographic and geographic factors. Further research is required to fully understand the factors driving these trends and their public health implications.