Table 1.
Performance of the OraQuick test.
| Test kits | True positive |
True negative |
False positive |
False negative |
Se (95%CI) | Sp (95%CI) |
PPV (95%CI) |
NPV (95%CI) |
| Gold standard (Determine + “Shanghai” |
14 | 1506 | 0 | 0 |
100 (98.5–100) |
100 (99.2–100) |
100 (98.5–100) |
100 (99.2–100) |
| Test under evaluation (OraQuick® HIV-1/2 Rapid OMT |
13 | 1505 | 1 | 1 |
93.0 (66.0–99.0) |
99.9 (99.0–100) |
92.9 (66.0–99.0) |
99.9 (99.9–100) |
CI, confidence interval; Se, sensitivity; Sp, specificity; PPV, positive predictive value; NPV, negative predictive value.