CD4 count, absolute: See: Absolute CD4 count.
CD4 percentage and absolute CD4 counts are difficult concepts. This article will help you better understand absolute CD4 and CD4 percentage.
CD4 Percentage is an Independent Predictor of Survival in Patients Starting Antiretroviral Therapy with Absolute CD4 Cell Counts Between 200 and 350 Cells/UL.
Absolute CD4 count: The number of "helper" CD4 T-lymphocytes in a cubic millimeter of blood. With HIV, the absolute CD4 count declines as the infection progresses.
CDC staging based on absolute CD4 count and CD4 percentage in an HIV-1-infected Indian population: treatment implications
Traditionally in pediatric HIV, the CD4+ T-lymphocyte percent is used in monitoring disease progression due to the variability in absolute CD4+ T-lymphocyte numbers.