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