For many developing countries resources for monitoring HIV disease are limited. Chen et al developed an algorithm for using the complete blood cell (CBC) count to identify an HIV-positive patient who probably has a CD4 cell count <= 200 per µL. The authors are from the University of Alabama at Birmingham.
Parameters:
(1) absolute lymphocyte count per µL
(2) hemoglobin in g/dL
(3) platelet count per µL
Absolute Lympho-cyte Count
Hemoglobin
Platelet Count
% Patients with Low CD4
>= 1,702
NA
NA
7%
1,426 - 1,701
<= 13.35
NA
27%
1,327 - 1,425
<= 13.35
NA
50%
1,327 - 1,701
> 13.35
NA
13%
1,081 - 1,326
<= 12.95
NA
50%
1,081 - 1,326
> 12.95
> 174,500
20%
1,081 - 1,326
> 12.95
<= 174,500
43%
916 - 1,080
NA
`NA
61%
<= 915
NA
NA
94%
A percent >= 27% was taken as being indicative of a low CD4 cell count.
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