Trends in mortality related to kidney failure and diabetes mellitus in the United States: a 1999-2020 analysis.

Abstract

Background: Kidney failure ranks as the tenth leading cause of mortality in the United States (US), frequently arising as a complication associated with diabetes mellitus (DM).

Methods: Trends in DM and kidney failure mortality were assessed using a cross-sectional analysis of death certificates from the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research (CDC WONDER) database. Crude and age-adjusted mortality rates (AAMR) per 100,000 people and annual percent change (APC) in age-adjusted mortality rate with 95% CI were obtained and measured across different demographic and geographic subgroups.

Results: Between 1999 and 2020, a total of 325,515 deaths occurred related to kidney failure and DM. The overall age-adjusted mortality rate showed no significant change between 1999 and 2012, after which it declined until 2015 - 64.8 (95% CI - 75.6 to - 44.8) and has been steadily increasing since. Men had consistently higher age-adjusted mortality rates than women throughout the study duration (overall age-adjusted mortality rate men: 8.1 vs. women: 5.9). Non-Hispanic (NH) Black or African American individuals had the highest overall age-adjusted mortality rate (13.9), followed by non-Hispanic American Indian or Alaskan Native (13.7), Hispanic or Latino (10.3), non-Hispanic Asian or Pacific Islander (6.1), and non-Hispanic White (6.0). Age-adjusted mortality rate also varied by region (overall age-adjusted mortality rate: West:7.5; Midwest: 7.1; South: 6.8; Northeast: 5.8), and non metropolitan areas had higher overall age-adjusted mortality rate (7.5) than small/medium (7.2) and large metropolitan areas (6.4).

Conclusion: After an initial decline, mortality rose across all the demographic groups from 2015 to 2020, revealing notable disparities in gender, race, and region.