CST3 and Thrombocytopenia: There were significant differences in age, treatment duration, serum albumin, total bilirubin (TBil), blood urea nitrogen (BUN), cystatin C (CysC), serum creatinine (Scr), creatinine clearance (Ccr), glomerular filtration rate (eGFR), hepatic and renal impairment between patients with and without thrombocytopenia (P < 0.05).