Diverticulitis in Morbidly Obese Adults: A Rise in Hospitalizations with Worse Outcomes According to National US Data

Kishan Patel, Somashekar G. Krishna, Kyle Porter, Peter P. Stanich, Khalid Mumtaz, Darwin L. Conwell, Steven K. Clinton, Hisham Hussan

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Background and Aims: Obesity is a known risk factor for diverticulitis. Our objective was to examine the less investigated impact of morbid obesity (MO) on admissions and clinical course of diverticulitis in a US representative database. Methods: We retrospectively queried the 2010–2014 Nationwide Readmission Database to compare diverticulitis hospitalizations in 48,651 MO and 841,381 non-obese patients. Outcomes of mortality, clinical course, surgical events, and readmissions were compared using multivariable and propensity-score-matched analyses. Results: The number of MO patients admitted with diverticulitis increased annually from 7570 in 2010 to 11,935 in 2014, while the total number of patients admitted with diverticulitis decreased (p = 0.003). Multivariable analysis demonstrates that MO was associated with increased mortality (adjusted odds ratio [aOR] 1.54; 95% confidence internal [CI]: 1.16, 2.05), intensive care admissions (aOR = 1.92; 95% CI: 1.61, 2.31), emergent surgery (aOR = 1.20; 95% CI: 1.11, 1.30), colectomy (aOR = 1.13; 95% CI: 1.08, 1.18), open laparotomy (aOR = 1.28; 95% CI: 1.21, 1.34), and colostomy (aOR = 1.34; 95% CI: 1.25, 1.43). Additionally, MO was associated with higher risk for multiple readmissions for diverticulitis within 30 days (aOR = 1.45; 95% CI: 1.08, 1.96) and 6 months (aOR = 1.21; 95% CI: 1.03, 1.42). A one-to-one matched propensity-score analysis confirmed our multivariable analysis findings. Conclusions: Analysis of national data demonstrates an increasing trend of MO patients’ admissions for diverticulitis, with a presentation at a younger age. Furthermore, MO is associated with an increased risk of adverse outcomes and readmissions of diverticulitis. Future strategies are needed to ameliorate these outcomes.

Original languageEnglish
Pages (from-to)2644-2653
Number of pages10
JournalDigestive Diseases and Sciences
Issue number9
StatePublished - Sep 1 2020

Bibliographical note

Publisher Copyright:
© 2020, Springer Science+Business Media, LLC, part of Springer Nature.


  • Diverticulitis
  • Morbid obesity
  • Mortality
  • Outcomes
  • Recurrence

ASJC Scopus subject areas

  • Physiology
  • Gastroenterology


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