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P1174STUDY ON THE RELATIONSHIP BETWEEN HYPOCHLOREMIA AND ALL-CAUSE DEATH IN PATIENTS RECEIVING CONTINUOUS AMBULATORY PERITONEAL DIALYSIS


 
 
 To investigate the relationship between hypochloremia on all-cause death in patients receiving continuous ambulatory peritoneal dialysis (CAPD).
 
 
 
 300 CAPD patients from January 2013 to December 2019 in the Sixth People's Hospital affiliated to Shanghai Jiaotong University. According to the serum chloride level, the patients were divided into two groups: hypochloremia group (serum chlorine ≤ 96mmol / L, n = 135) and normal chloride group (106mmol / L < serum chlorine > 96mmol / L, n = 165). The endpoint was all-cause death. We used the receiver-operating characteristic (ROC) curve to analysis the diagnostic value and logistic regression to assess the predictive value in relation to serum chloride with all-cause death in CAPD patients. Kaplan Meier curve was used to evaluate the effect of serum chloride on all-cause death survival analysis. All statistics were analyzed by SPSS 20.0 software, P < 0.05, indicating significant difference.
 
 
 
 114 cases of all-cause death occurred in CAPD patients during follow-up (62.1 ± 11.1 months). The results of correlation analysis showed that serum chloride was positively correlated with serum sodium and potassium (r=0.721,0.199, P=0.001) and the negative correlation between serum chloride and dialysis age and serum phosphorus (r=-0.321, - 0.300, P=0.001). ROC curve analysis showed that serum chloride was statistically significant in predicting all-cause death in CAPD patients (AUC = 0.666, 95% Cl = 0.601-0.730, sensitivity / specificity = 64.6% / 59.8%, best threshold = 95.5mmol/l). Kaplan Meier analysis of all-cause death risk curve shows that the incidence of all-cause death in the low chloride group is higher than that in the normal serum chloride group. Logistic regression analysis showed that low chloride level was an independent risk factor for all-cause death in CAPD patients.
 
 
 
 Hypochloremia is an independent risk factor for all-cause death in CAPD patients.
