Laboratory Medicine ›› 2022, Vol. 37 ›› Issue (2): 134-140.DOI: 10.3969/j.issn.1673-8640.2022.02.008

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Relationship between procalcitonin level and all-cause death in maintenance hemodialysis patients

GU Feng1, WU Yanfen2, ZHAO Xinhui2, HOU Zhaoyuan1, WANG Zhihong2, QI Hualin2   

  1. 1. School of Basic Medicine,Shanghai Jiao Tong University School of Medicine,Shanghai 200025,China
    2. Department of Nephrology,Shanghai Pudong New Area People's Hospital,Shanghai 201200,China
  • Received:2021-03-18 Revised:2021-08-09 Online:2022-02-28 Published:2022-03-15

Abstract:

Objective To investigate the relationship between procalcitonin(PCT) level and all-cause death in patients undergoing maintenance hemodialysis(MHD). Methods A total of 160 patients undergoing MHD were enrolled,and their clinical data,including sex,age,body mass index(BMI),smoking history,primary disease,comorbidities,dialysis duration,New York Heart Association(NYHA) cardiac function classification and laboratory indicators,were collected. Receiver operating characteristic(ROC) curve was used to determine the optimal cut-off value of death and survival in MHD patients. The patients with PCT> optimal cut-off value were taken as high PCT group,and those with PCT≤optimal cut-off value were taken as low PCT group. The influencing factors of high PCT were analyzed by binary Logistic regression. Kaplan-Meier survival curve was used to analyze the survival rate of MHD patients. Cox proportional risk regression analysis was used to evaluate the relationship between PCT and all-cause death in MHD patients. Results The dialysis duration and CRP levels in high PCT group were higher than those in low PCT group(P<0.01),but there was no statistical significance for the other indicators(P>0.05). Binary Logistic regression analysis showed that increased CRP level was a risk factor for high PCT [odds ratio(OR)=1.182,95% confidence interval(CI)1.043-1.339,P=0.009]. Kaplan-Meier survival curve analysis showed that the survival rate of high PCT group was lower than that of low PCT group(Log-rank χ2=6.707,P=0.01;Breslow test value was 6.828,P=0.009). Cox proportional risk regression analysis showed that high triglyceride(TG) level was a protective factor for all-cause death in MHD patients [hazard ratio(HR)=0.166,95%CI 0.071-0.387]. High PCT level was a risk factor for all-cause death in MHD patients(HR=4.409,95%CI 1.757-11.064). Conclusions High PCT level may be an independent risk factor for all-cause death in MHD patients.

Key words: Procalcitonin, Maintenance hemodialysis, All-cause death

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