Abstract

We investigated whether serum cystatin C predicted treatment failure and mortality in nondiabetic peritoneal dialysis (PD) patients. We studied 163 new-onset, nondiabetic PD patients between January 2010 and January 2019. Patients were followed up until death or 1 July 2019. Serum cystatin C was measured within 1 week before PD. Basic demographic and laboratory test data were collected. Patients were divided into low (<5.54 mg/L) and high (≥5.54 mg/L) serum cystatin C groups. The Kaplan-Meier method and log-rank test showed that the technical survival rate of the low cystatin C group was higher than that of the high cystatin C group. There was no difference in overall survival between the two groups. Multivariate Cox model showed that serum cystatin C was an independent risk factor for PD failure. Serum cystatin C could predict PD failure but was not associated with mortality in nondiabetic PD patients.

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