Table 1 kappa factor and sensitivity and specificity for absolute CD4+ counts determined by EasyCD4 assay.
N | CD4+ T cell count (cells/mm3) | Kappa value | Sensitivity | Specificity | ||||
|---|---|---|---|---|---|---|---|---|
Mean | Median | |||||||
FC* | EasyCD4** | FC* | EasyCD4** | |||||
Total | 79 | 306 | 290 | 280 | 284 | --- | --- | ---- |
CD4 < 500 | 70 | 252 | 227 | 249 | 239 | 0.771 | 100% | 95% |
CD4 < 350 | 52 | 196 | 192 | 210 | 205 | 0.735 | 100% | 82% |
CD4 < 200 | 24 | 108 | 104 | 118 | 112 | 0.741 | 97% | 100% |