Abstract
INTRODUCTION: Renal injury is a common complication of liver cirrhosis and type 2 diabetes mellitus (T2DM). The aim of this study was to analyze the association between cirrhosis and dialysis in patients with T2DM. METHODS: This was a retrospective study of specific patient populations using data collected from the National Health Insurance Research Database, National Health Research Institutes, Taiwan on patients treated between 1999 and 2007. The study population comprised 1271,759 patients with T2DM without cirrhosis, 38,860 patients with cirrhosis without T2DM, 11,487 patients with T2DM and cirrhosis, and 579,173 patients without T2DM and cirrhosis (non-cirrhotic control group). RESULTS: The average incidence of dialysis in patients with T2DM and liver cirrhosis (2.466%) was 10.6-, 2.3-, and 102.7-fold higher than that in patients with T2DM without cirrhosis (0.232%), with cirrhosis without T2DM (1.071%), and patients without both T2DM and cirrhosis (0.024%), respectively. Adjusted odds ratio (OR) for dialysis risk was 3.19 in patients with T2DM and cirrhosis, 2.16 in patients with T2DM without cirrhosis, and 1.98 in patients with cirrhosis without T2DM, compared to that in patients without T2DM and cirrhosis. Male sex (adjusted hazard ratio [HR] 1.15), age (45-49 vs. 20-34 years [reference]; adjusted HR 1.34), low-income households (adjusted HR 1.46), cirrhosis (adjusted HR 3.42), and diabetic complications severity index (adjusted HR 1.71) were predictors of dialysis in T2DM patients. In addition, those with T2DM participating in the pay-for-performance (P4P) program had a significantly lower relative risk for requiring dialysis (HR 0.64). CONCLUSION: Liver cirrhosis is an independent risk factor for dialysis in patients with T2DM. Participating in the P4P program for diabetes care may reduce the risk of requiring dialysis in patients with T2DM.