Groups Mean Std. Error P value
HC 2.731 0.2586  
PTB 3.295 0.8588 0.3215
HIV-1 [CD4 >500 cells/μl 3.876 0.4110 0.0243
HIV-1 [CD4 500>x>250 cells/μl 5.254 1.208 0.0194
HIV-1 [CD4 <250] 5.835 1.569 0.0127
HIV-PTB 9.424 4.000 0.0243
Table 2: Comparison of frequency of CCR5 expression on CD4+ T-cells in individuals between healthy controls and other diseased patient groups. Data are expressed as Means with SEM [standard error of the mean] of percentage CD4 T-cells positive for CCR5 and P value less than 0.05 indicates significant difference when compared with healthy controls.