Trends and disparities of diverticular disease mortality in the United States before and during the COVID-19 era: estimates from the Centers for Disease Control WONDER database

Authors Thai Hau Koo, Venkata Sunkesula, Rishi Chowdhary, Xue Bin Leong, Ronnie Fass, Ala A. Abdel Jalil.

Abstract

Background Diverticular disease (DD) is a common gastrointestinal condition in the United States (US) associated with significant morbidity and mortality. The COVID-19 pandemic posed new challenges that might exacerbate DD-related outcomes. This study analyzed the trends in all-cause, digestive system (DGS), and cardiovascular system (CVS) mortality associated with DD from 1999-2020, focusing on the impact of COVID-19 on age-adjusted mortality rates (AAMRs) and disparities across demographics and geography.


Methods Data from adults aged ≥25 years were extracted from the Centers for Disease Control WONDER database. AAMRs per 100,000 people were standardized using the 2000 US census. AAMRs were assessed from 1999-2020 for context, while the primary comparative analysis focused on the pre-COVID-19 (2016-2019) and post-COVID-19 (2019-2022) periods using linear regression models. AAMRs were stratified by age, sex, race/ethnicity and geographic region. Note: 2021-2022 trends were extrapolated, as finalized mortality records were not available at the time of analysis.


Results Between 1999 and 2020, 115,009 DD-related deaths occurred (AAMR 2.4/100,000), including 70,648 DGS-related deaths (AAMR 1.5) and 17,405 CVS-related deaths (AAMR 0.4). Females (AAMR 2.6), elderly individuals (AAMR 11.1), and non-Hispanic whites (AAMR 2.5) had the highest mortality rates. Post-COVID-19, AAMRs increased from 1.8 to 2.0, with significant increases among rural populations. DGS-related deaths were most prevalent, particularly in non-metropolitan areas.


Conclusions DD-related mortality has increased in the post-COVID-19 period, especially in vulnerable populations, such as the elderly, rural residents and females. These findings highlight the need for equitable healthcare interventions and the continued monitoring of pandemic-era health disparities.


Keywords Diverticular disease, COVID-19, mortality trends, disparities, CDC WONDER


Ann Gastroenterol 2025; 38 (4): 428-439

Published
2025-08-01
Section
Original Articles