Comorbid Chronic Diseases and Survival in Compensated and Decompensated Cirrhosis: A Population-Based Study

Abstract

Introduction: The burden of liver disease is substantial and increasing; the impact of comorbid chronic diseases on the clinical course of patients with compensated and decompensated cirrhosis is not well-defined. The aim of this study was to examine the individual and additive impact of comorbid chronic diseases on mortality in patients with cirrhosis.

Methods: In this population-based study, we used Cox proportional hazards modeling with time-dependent covariates to assess the impact of comorbid chronic diseases (diabetes mellitus, chronic kidney disease, and cardiovascular disease [CVD]) on mortality in patients with cirrhosis in a large, diverse Metroplex.

Results: There were 35,361 patients with cirrhosis (mean age 59.5 years, 41.8% females, 29.7% non-White, and 17.5% Hispanic ethnicity). Overall, the presence of chronic comorbidities was 1 disease (28.9%), 2 diseases (17.5%), and 3 diseases (12.6%) with a majority having CVD (45%). Adjusted risk of mortality progressively increased with an increase in chronic diseases from 1 (hazard ratio [HR] 2.5, 95% confidence interval [CI] 2.23-2.8) to 2 (HR 3.27.95% CI 2.9-3.69) to 3 (HR 4.52, 95% CI 3.99-5.12) diseases. Survival of patients with compensated cirrhosis and 3 chronic diseases was similar to subsets of decompensated cirrhosis (67.7% as compared with decompensated cirrhosis with 1-3 conditions, 61.9%-63.9%).

Discussion: In patients with cirrhosis, a focus on comorbid chronic disease(s) as potential management targets may help avoid premature mortality, regardless of etiology. Multidisciplinary care early in the clinical course of cirrhosis is needed in addition to the current focus on management of complications of portal hypertension.