Healthcare Utilization Among Patients Hospitalized With Gastrointestinal Diseases in the United States.

ABSTRACT

Background and Aims: Gastrointestinal (GI) disorders represent a significant burden on United States healthcare, but research assessing the relative contribution of individual GI disorders is lacking. We aimed to determine the relative impact of various GI conditions, as compared to non-GI conditions, on US hospital-related healthcare utilization. Methods: Hospitalization data from 2016 to 2018 were obtained from the Nationwide Readmissions Database. Outcomes included length of stay, hospital charges, 30-day readmissions, and death. Multivariable regression models evaluated each outcome, while adjusting for patient and hospital characteristics. Patients hospitalized for each GI indication were compared to individuals hospitalized for non-GI conditions. Results: 5,344,145 patients with GI and 68,901,595 patients with non-GI indications for hospitalization were included in our study. All GI indications were associated with increased odds for 30-day readmission compared to non-GI indications, with the highest being gastroparesis (adjusted odds ratio, 2.15; 95% confidence interval [CI], 2.09-2.22). Upper GI cancer had the highest relative increase in length of stay (2.31 days, 95% CI 2.20-2.42) and total charges ($23,441, 95% CI $21,296-25,587). Upper GI cancer, pancreatic cancer, and gallbladder/biliary cancer were associated with the highest odds of death. Conclusion: GI malignancies contributed significantly to utilization and death, possibly from advanced stage at hospitalization and systemic effects of malignancy. The high GI-specific readmission rates highlight the chronicity of GI conditions and the importance of optimizing digestive health to prevent recurrent admission.