Baseline Serum Interleukin-6 Predicts Cardiovascular Events in Incident Peritoneal Dialysis Patients

Cho, Yeoungjee, Johnson, David W., Vesey, David A., Hawley, Carmel M., Pascoe, Elaine M., Clarke, Margaret and Topley, Nicholas (2015) Baseline Serum Interleukin-6 Predicts Cardiovascular Events in Incident Peritoneal Dialysis Patients. Peritoneal Dialysis International, 35 1: 35-42. doi:10.3747/pdi.2013.00272

Author Cho, Yeoungjee
Johnson, David W.
Vesey, David A.
Hawley, Carmel M.
Pascoe, Elaine M.
Clarke, Margaret
Topley, Nicholas
Title Baseline Serum Interleukin-6 Predicts Cardiovascular Events in Incident Peritoneal Dialysis Patients
Journal name Peritoneal Dialysis International   Check publisher's open access policy
ISSN 0896-8608
Publication date 2015-01
Year available 2014
Sub-type Article (original research)
DOI 10.3747/pdi.2013.00272
Open Access Status DOI
Volume 35
Issue 1
Start page 35
End page 42
Total pages 8
Place of publication Milton, ON, Canada
Publisher Multimed
Collection year 2016
Language eng
Formatted abstract
Background: The utility of local and systemic interleukin 6 (IL-6) as a prognostic marker in incident peritoneal dialysis (PD) patients remains to be fully defined. The present study aimed to explore the capacity of systemic IL-6 concentrations to predict cardiovascular events (CVEs) and mortality in PD patients, and to evaluate the influence of neutral-pH PD solutions low in glucose degradation products (GDPs) on systemic IL-6.

Methods: The study included 175 incident participants from the balANZ trial with at least one stored serum sample. A composite CVE score was used as the primary clinical outcome measure. Multilevel linear regression and Poisson regression models were fitted to describe, respectively, the trend of serum IL-6 over time and its ability to predict composite CVE.

Results: A significant increase in serum IL-6 from baseline to 24 months was observed in the study population (mean difference: 1.68 pg/mL; p = 0.006). The type of PD solution received by patients exerted no significant effect on serum IL-6 (p = 0.12). Composite CVE was significantly and independently associated with baseline serum IL-6 (incidence rate ratio per picogram per milliliter: 1.06; 95% confidence interval: 1.02 to 1.10; p = 0.003).

Conclusions: Baseline serum IL-6 was a significant independent predictor of composite CVE. Serum IL-6 concentrations increased with increasing PD duration and were not significantly modified with the use of biocompatible fluid over the study period. The present study is the first to link systemic IL-6 concentrations with CVE outcomes in incident PD patients.
Keyword Biocompatibility
Cardiovascular events
Glucose degradation products
Interleukin 6
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Medicine Publications
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