Abstract:Objective To investigate the clinical characteristics in patients with cirrhosis and complicated kidney damage, and to further analyze the risk factors for kidney injury. Methods The general situation, causes and classification of liver function, kidney function and prognosis factors of 429 patients with cirrhosis admitted in the department of infectious diseases of Shengjing Hospital of China Medical University were retrospectively analyzed. Results There was statistically significance in the constituent ratio of etiology of cirrhosis (P < 0.05); the levels of Scr and Cys C in CTP C patients were higher than those in the other two groups (P < 0.05), and the level of eGFR was higher in CTP A group than those in others (P < 0.05); there was statistically significance in the incidence of kidney injury among three groups (P < 0.05), and the incidence of kidney injury has trend of increasing with the development of CTP (P < 0.05); CTP classification [Ol ^ R=2.324 (95% CI: 1.495, 3.614)] and age [Ol ^ R=3.730 (95% CI:2.185, 6.367)] were independent associated risk factors for kidney injury. Conclusions Liver reservation function in patients with cirrhosis is closely related to the etiology, Scr, Cys C and eGFR. The higher the CTP class is, the higher the incidence of kidney injury is and the greater the injury degree is. CTP class and age are independent risk factors for kidney injury in patients with cirrhosis.