Small HDL Subclasses and Mortality Risk in Chronic Kidney Disease
Author Information
Author(s): Stadler Julia T., Borenich Andrea, Pammer Anja, Emrich Insa E., Habisch Hansjörg, Madl Tobias, Heine Gunnar H., Marsche Gunther
Primary Institution: Medical University of Graz
Hypothesis
Are specific HDL subclasses associated with mortality risk in patients with chronic kidney disease?
Conclusion
Reduced levels of small and extra-small HDL subclasses, especially XS-HDL-ApoA-II, are strongly associated with increased all-cause mortality risk in CKD patients.
Supporting Evidence
- 18.6% of patients died during the follow-up period.
- Deceased patients had significantly lower levels of cholesterol, ApoA-I, and ApoA-II in small and XS HDL subclasses.
- XS-HDL-ApoA-II was identified as the most potent prognostic marker for mortality.
Takeaway
This study found that having lower levels of certain types of HDL, which are good fats in our blood, can mean a higher chance of dying for people with kidney disease.
Methodology
The study analyzed HDL subclass composition in 463 CKD patients using nuclear magnetic resonance spectroscopy over a mean follow-up period of 5 years.
Limitations
The moderate sample size may limit the ability to detect subtle differences, and the observational design precludes establishing definitive causal relationships.
Participant Demographics
Mean age of participants was 65 years, with 39% female and a majority in CKD stages 3a and 3b.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI 0.40, 0.62
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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