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Figure 3: CD4% is plotted as the independent variable on the X-axis with the associated CD4 count plotted as the dependent variable on the Y-axis. Six PointCare NOW™ flow-cytometer/hematology devices tested 1,454 healthy and immunocompromised persons with CD4% ranging from 5% to 75% in sub-Saharan Africa. The associated absolute lymphocyte counts above and below the African reference range (1,200 – 3,700 lymphocytes/microliter) are identified in orange. A total of 4% of samples were either above or below the reference range. |