Predicting AIDS-related events using CD4 percentage or CD4 absolute counts
Author Information
Author(s): Pirzada Yasmin, Khuder Sadik, Donabedian Haig
Primary Institution: College of Medicine, University of Toledo
Hypothesis
Is the CD4 percentage a better predictor of AIDS-related events than the CD4 absolute count in HIV-infected patients?
Conclusion
The CD4 percentage is the best predictor of the onset of HIV-related diseases, making the CD4 absolute count measurement unnecessary.
Supporting Evidence
- The CD4 percentage was found to be a superior predictor of AIDS-related events compared to the CD4 absolute count.
- The study included 218 HIV-infected patients and analyzed their clinical records.
- The absolute lymphocyte count was also a strong predictor, but less so than the CD4 percentage.
- The CD4 percentage showed better predictive value in patients receiving effective therapy after 1995.
Takeaway
Doctors can use the CD4 percentage to predict when someone with HIV might get sick instead of using the CD4 count, which is more complicated.
Methodology
Analyzed clinical records of 218 HIV-infected patients to compare CD4 percentage and CD4 absolute count as predictors of AIDS-related events.
Potential Biases
Potential bias due to reliance on historical data and patient compliance with therapy.
Limitations
The study assumes all patients followed after 1995 were prescribed effective therapy, but compliance cannot be confirmed.
Participant Demographics
Patients' ages ranged from 21 to 72, with 83% male, 34% African American, 4% Hispanic, and 62% Caucasian.
Statistical Information
P-Value
<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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