Observational studyBMC nephrology2025
Association between time-varying serum lipid levels and all-cause mortality in haemodialysis and peritoneal dialysis patients.
Observational study in BMC nephrology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- A Prospective Study of Lipid Profile in Incident Patients on Peritoneal Dialysis.Arquivos brasileiros de cardiologia · 2026Article
- Skeletal muscle density mediates the relationships of monocyte-lymphocyte ratio, apolipoprotein A1/HDL, and alkaline phosphatase with thoracic aortic calcification: a multicenter study in patients undergoing maintenance dialysis.Lipids in health and disease · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveChanges in lipid levels over time and the associated all-cause mortality have not yet been studied in different populations of patients undergoing dialysis. This study aimed to investigate the differences in time-varying serum lipid levels and all-cause mortality among haemodialysis (HD) and peritoneal dialysis (PD) patients over a 5-year follow-up period.
methodsThis observational study included Chinese patients with end-stage renal disease (ESRD) who started HD or PD at Sun Yat-sen Memorial Hospital from January 2010 to February 2018. Changes in lipid profiles and trends of change in overall survival rates between the two groups were investigated. Risk factors for the outcome were identified, and the optimal cut-off values were determined using ROC analysis. Additionally, the relationship between the group variable and the outcome measure was assessed using linear regression with a generalized estimating equation (GEE) model.
resultsA total of 141 patients (74 HD patients and 67 PD patients) were enrolled in the study. Forty-three (30.71%) patients died during the follow-up period. Compared with the HD group, the PD group had significantly greater triglyceride (TG) (Year 1 and Year 2) and low-density lipoprotein cholesterol (LDL-C) (Year 2) levels and significantly lower high-density lipoprotein cholesterol (HDL-C) (Year 1 and Year 2) levels. There was no significant difference in total cholesterol (TC) levels. The GEE results revealed similar changes in lipid levels between HD patients and PD patients over time. The Kaplan‒Meier survival curve revealed that there was no significant difference in overall survival between the two groups (log-rank test, P = 0.119). Furthermore, the multivariate Cox proportional hazard regression models demonstrated that baseline HDL-C levels (HR: 0, 95% CI: 0 to 0.11; P = 0.004) and changes in LDL-C levels from baseline to 3 years of follow-up(difference from 0 to 3 years of follow-up) (HR: 0.21, 95% CI: 0.09 to 0.53; P < 0.001) were associated with a greater risk of death in HD patients. An increase in LDL-C levels (difference from 0 to 3 years of follow-up) ≤ 0.24 mmol/L in HD patients and age ≥ 53 years in all patients initiating dialysis was associated with a significantly increased risk of mortality.
conclusionThe baseline levels of HDL-C and changes in LDL-C levels over a three-year period were significant predictors of all-cause mortality in HD patients, which differed from the lack of significant risk factors observed in the PD group.
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