Related Experiment Video
Updated: Oct 26, 2025
Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis
Published on: July 19, 2018
Non-high-density lipoprotein cholesterol and mortality among peritoneal dialysis patients
1Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China; Key Laboratory of Nephrology, National Health Commission and Guangdong Province, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China.
Insights
Elevated non-high-density lipoprotein cholesterol (non-HDL-C) increases cardiovascular and all-cause mortality risk in peritoneal dialysis (PD) patients. This finding highlights non-HDL-C as a critical factor for PD patient outcomes.
Area of Science:
- Nephrology
- Cardiology
- Biochemistry
Background:
- The relationship between non-high-density lipoprotein cholesterol (non-HDL-C) and mortality in patients undergoing peritoneal dialysis (PD) requires further elucidation.
- Existing research has not definitively established the impact of non-HDL-C on adverse outcomes in this specific patient population.
Purpose of the Study:
- To investigate the independent association between non-HDL-C levels and both cardiovascular (CV) and all-cause mortality in patients initiating PD.
- To specifically examine the link between non-HDL-C and atherosclerotic CV mortality within the PD cohort.
Main Methods:
- A prospective cohort study design was employed, enrolling 1,616 incident PD patients from a single center in South China.
- Patients were followed for a median of 47.6 months, with mortality data analyzed using Cox regression analysis.
- Non-HDL-C levels were assessed as a continuous variable and in quartiles to evaluate their independent association with mortality outcomes.
Main Results:
- A total of 508 deaths (31.4%) occurred, with 249 (49.0%) attributed to CV events, of which 59.8% were atherosclerotic.
- Each one-standard deviation increase in non-HDL-C was significantly associated with increased CV mortality (HR 1.52) and all-cause mortality (HR 1.24).
- Elevated non-HDL-C showed a significant positive association with atherosclerotic CV mortality (HR 1.29) but not with nonatherosclerotic CV mortality.
Conclusions:
- Elevated non-HDL-C levels are independently linked to a higher risk of cardiovascular mortality, particularly atherosclerotic causes, and all-cause mortality in incident PD patients.
- These findings underscore the importance of monitoring and managing non-HDL-C levels in patients undergoing peritoneal dialysis to mitigate mortality risks.
Background:
The association between non-high-density lipoprotein cholesterol (non-HDL-C) and mortality in patients undergoing peritoneal dialysis (PD) is unclear.
Objective:
The aim of this study was to evaluate the association of non-HDL-C with cardiovascular (CV) and all-cause mortality in PD patients.
Methods:
We conducted a prospective cohort study. A total of 1,616 incident PD patients from a single PD center in South China were followed for a median of 47.6 months. The independent association of non-HDL-C with CV and all-cause mortality was evaluated by a Cox regression analysis.
Results:
During the follow-up period, 508 (31.4%) patients died, of which 249 (49.0%) were due to CV events. Atherosclerotic CV mortality accounted for 59.8% of CV mortality. In multivariable models, for 1-SD increase in non-HDL-C level, the hazard ratios (HRs) for CV and all-cause mortality were 1.52 [95% confidence interval (CI), 1.32-1.75; P < 0.001)] and 1.24 (95% CI, 1.12-1.39; P < 0.001), respectively. Furthermore, non-HDL-C was positively associated with atherosclerotic CV mortality (HR, 1.29; 95% CI, 1.09-1.52; P = 0.004) but not associated with nonatherosclerotic CV mortality (HR, 0.79; 95% CI, 0.59-1.05; P = 0.108). The quartile analyses showed a similar pattern to the continuous variable analyses of non-HDL-C levels for CV and all-cause mortality but did not demonstrate statistical significance for atherosclerotic or nonatherosclerotic CV mortality.
Conclusion:
An elevated non-HDL-C level was independently associated with an increased risk of CV mortality, especially atherosclerotic CV mortality, and all-cause mortality in incident PD patients.
Related Concept Videos
01:25Peritoneal Dialysis II: Peritoneal Dialysis Systems and Complications
01:25Peritoneal Dialysis III: Nursing Management
01:28Chronic Kidney Disease III: Interprofessional Care
01:24Hemodialysis II: Procedure and Complications
01:24Chronic Kidney Disease II: Clinical Manifestations
01:30Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis