Albumin to prealbumin ratio in peritoneal dialysis patients: Clinical implication and outcome prediction

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Title:	Albumin to prealbumin ratio in peritoneal dialysis patients: Clinical implication and outcome prediction
Authors:	Huang, Yun-Ting Jiang, Ming-Yan Hwang, Jyh-Chang
Contributors:	Chi Mei Hospital Department of Pharmacy, Chia Nan University of Pharmacy & Science
Keywords:	nutritional-status serum prealbumin hemodialysis mortality protein inflammation hypokalemia survival mass
Date:	2022
Issue Date:	2023-12-11 14:05:16 (UTC+8)
Publisher:	PUBLIC LIBRARY SCIENCE
Abstract:	Background Serum prealbumin level is slightly higher, whereas albumin is lower in peritoneal dialysis (PD) than hemodialysis (HD) patients. It is unknown whether albumin to prealbumin ratio (APR) is associated with mortality risk among PD patients. This study aimed to evaluate the clinical implications of APR and its prediction value on long-term outcomes of PD patients. Methods The study population were prevalent PD patients at a tertiary hospital. Based on APR, a total of 220 PD patients were divided into 3 groups: group 1: top tertile, median APR: 121.1; IQR:109.5-131.9 (n = 73, male: 37%; age: 5913); group 2: middle tertile, median APR: 97.1; IQR 93.5-100.0 (n = 73, male:37%; age: 5414), and group3: bottom tertile, median APR: 81.3; IQR:76.8-85.0 (n = 74, male:38%; 54 +/- 11). Patients were followed up for a maximum of 5 years. Outcome of interest was all-cause mortality. Results Group 1 was characterized by older age, higher prevalence of diabetes, lower nPCR, higher Davies score and hs-CRP level. APR positively correlated to hs-CRP (beta = 0.149, p = 0.045), but negatively correlated to nPCR (beta = -0.161, p = 0.034). Hyperprealbuminemia, accounting for 0%, 23.3%, and 82.4% in groups 1,2, and 3, was associated with a lower risk for mortality (HR:0.41, 95%CI = 0.23-0.73). The cumulative survival is significantly lower in group 1 than the other two groups. By multivariable Cox regression, APR (HR:1.02; 95%CI:1.01-1.03) was found to be an independent predictor of long-term mortality. Conclusion PD patients with high APR are characterized by having more comorbidities and marked malnutrition-inflammation status, and are associated with long-term mortality, whereas hyperprealbuminemia and lower APR are favorable prognostic factors.
Relation:	PLOS ONE, v.17, November 8, 2022
Appears in Collections:	[Dept. of Pharmacy] Periodical Articles

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