Comparing CD4+ T Cell Count Methods
Author Information
Author(s): Thakar Madhuri R, Kumar B Kishore, Mahajan Bharati A, Mehendale Sanjay M, Paranjape Ramesh S
Primary Institution: National AIDS Research Institute, Bhosari, Pune, India
Hypothesis
Is the EasyCD4 System a reliable alternative to conventional flow cytometry for estimating CD4+ T cell counts in HIV infected individuals?
Conclusion
The EasyCD4 System provides a reliable and cost-effective method for estimating CD4+ T cell counts in resource-poor settings.
Supporting Evidence
- The EasyCD4 System showed strong correlation with flow cytometry (r = 0.938).
- The EasyCD4 assay demonstrated 100% sensitivity for CD4+ T cell counts < 200 and < 350 cells/mm3.
- The specificity of the EasyCD4 assay ranged from 82% to 100%.
- The running cost of the EasyCD4 System is five times lower than conventional flow cytometry.
Takeaway
This study shows that a new, simpler test for counting CD4+ T cells works just as well as the older, more complicated method, making it easier for doctors to help people with HIV.
Methodology
The study compared CD4+ T cell counts using the EasyCD4 System and conventional flow cytometry in 79 HIV infected individuals.
Potential Biases
Potential bias in technician blinding and sample processing.
Limitations
The study was limited to a small sample size and did not assess the EasyCD4 System on finger prick samples.
Participant Demographics
31 females and 48 males with a mean age of 29 years for females and 36 years for males.
Statistical Information
P-Value
<0.001
Confidence Interval
95% CI 0.90 to 0.96
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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