Palacios-Argueta, Pedro

Background: Health disparities between racial groups continue to exist. There is a paucity of data regarding presentation severity for acute diverticulitis (AD) and surgery need by race. This study’s aim was to evaluate outcomes of AD in United States racial groups. Methods: A retrospective cohort study was performed using the 2016–2019 National Inpatient Sample of adult patients discharged for AD. Patients were classified into six racial and ethnic groups: Caucasian, African American (AA), Hispanic, Asian, Native American (NA), and other. Multivariate regression analysis adjusted for patient and hospital characteristics was performed for primary and secondary outcomes. Results: A total of 647,119 admissions with acute diverticulitis (AD) were identified. Most patients were Caucasian (about three-quarters), followed by Hispanics (11%), AA (9%), Asians (1%), Native Americans (<1%), and other (2%). Minority groups were generally younger than Caucasians and less likely to undergo colonoscopy or surgical procedures such as partial or total colectomy. In the multivariable analysis, both Hispanics and AA were less likely to present with complicated diverticulitis. Despite this, their hospitalizations were associated with higher overall charges and costs. No significant differences were found across groups in terms of inpatient mortality or the need for percutaneous abscess drainage. Conclusions: Hispanic and AA have higher healthcare- related charges and costs compared to Caucasians when admitted with AD. Further studies are needed to understand the healthcare-related spending variations seen in these groups despite them often having less complicated AD.