Using CD4 Cell Counts to Predict Treatment Failure in HIV Patients
Author Information
Author(s): Badri Motasim, Stephen D Lawn, Robin Wood
Primary Institution: The Desmond Tutu HIV Centre, University of Cape Town
Hypothesis
Can CD4 cell count measurements effectively predict virological failure in patients undergoing antiretroviral therapy in resource-limited settings?
Conclusion
CD4 count changes correlated significantly with viral load at a group level but had very limited utility in identifying virological failure in individual patients.
Supporting Evidence
- CD4 count changes correlated significantly with viral load at group level.
- The predictive value of CD4 cell slope for virological failure was poor.
- Distributions of CD4 counts at virological failure did not differ significantly from those without failure.
Takeaway
Doctors tried to use CD4 cell counts to see if HIV treatment was working, but it didn't help them know if patients were failing treatment.
Methodology
The study analyzed CD4 counts and viral load measurements from 330 patients over time to assess the relationship between these factors and virological failure.
Limitations
The study's findings may not apply to patients who have previously received treatment, and the cohort was limited to ART-naïve individuals.
Participant Demographics
Participants were ART-naïve patients from Cape Town, South Africa, with a diverse range of baseline CD4 counts and clinical stages.
Statistical Information
P-Value
0.003
Confidence Interval
95%CI 26.2–34.2
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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