Table 1.

Study group characteristics

Patient group	Viral load*	CD4 count†	CD8 count†
Uninfected (n = 67)	NA	784	429
HIV infected (n = 57)	54,573	339	874
Early (n = 34)	1,480	390	716
Intermediate (n = 24)	82,286	367	860
Advanced (n = 9)	212,033	107	1,006

Early: >200 CD4 cells/μl, <10,000 RNA copies/ml. Intermediate: >200 CD4 cells/μl >10,000, RNA copies/ml. Late: <200 CD4 cells/μl, >10,000 RNA copies/ml. NA, not applicable. 

^*Geometric mean; RNA copies/ml plasma. 

^†Arithmetic mean; cells/μl of blood.