Inflammatory and Coagulation Biomarkers and Mortality in HIV Patients
Author Information
Author(s): Kuller Lewis H, Tracy Russell, Belloso Waldo, Wit Stephane De, Drummond Fraser, Lane H. Clifford, Ledergerber Bruno, Lundgren Jens, Neuhaus Jacqueline, Nixon Daniel, Paton Nicholas I, Neaton James D
Primary Institution: University of Pittsburgh
Hypothesis
Increased HIV-RNA levels following ART interruption induce activation of tissue factor pathways, thrombosis, and fibrinolysis.
Conclusion
IL-6 and D-dimer were strongly related to all-cause mortality, suggesting that interrupting ART may increase the risk of death by raising these levels.
Supporting Evidence
- Higher levels of hsCRP, IL-6, and D-dimer at study entry were significantly associated with an increased risk of all-cause mortality.
- Unadjusted odds ratios for the highest versus lowest quartile of IL-6 and D-dimer were 8.3 and 12.4, respectively.
- IL-6 and D-dimer increased significantly in the drug conservation group compared to the viral suppression group after one month.
Takeaway
This study found that certain proteins in the blood can help predict if someone with HIV is at risk of dying, especially if they stop their treatment.
Methodology
The study used stored blood samples to measure six biomarkers in a nested case-control design and compared levels between participants who died and matched controls.
Potential Biases
Potential for confounding due to the limited matching of controls and the small number of events.
Limitations
The study had a small number of deaths, which may limit the generalizability of the findings.
Participant Demographics
Participants were HIV-infected individuals with a CD4+ count over 350 cells/mm3 from 33 countries.
Statistical Information
P-Value
p<0.0001
Confidence Interval
95% CI, 1.0–4.1; 95% CI, 3.3–20.8; 95% CI, 4.2–37.0
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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