Table 4: Agreement at CD4 of 200 cells/µL in venous and capillary blood.

Method Venous blood Capillary blood
Test (BD FACSPresto) Positive (<200) Negative (>200) Total Positive (<200) Negative (>200) Total
Positive (<200) 75 10 85 62 5 67
Negative (<200) 1 631 632 11 604 615
Total 76 641 717 73 609 682
Percent (%) Agreement 95% CL LL, UL
Venous Blood Overall 98.50% 97.27, 99.14
Positive 98.70% 92.89, 99.97
Negative 98.40% 97.48, 99.40
Capillary Blood Overall 97.70% 96.22, 99.55
Positive 84.90% 76.73, 93.14
Negative 99.20% 98.46, 99.90

LL= Lower limit; UL= Upper Limit