TABLE 2.
Discrepant analysis
| No. of samples | Resulta by: |
Conclusion | ||||||
|---|---|---|---|---|---|---|---|---|
| Primary test |
Repeat test |
Arbiter test (ACT) | ||||||
| ART | RCT | AC2 | ART | RCT | AC2 | |||
| 2 | +* | − | − | +/ND | −/ND | −/ND | −/−/ND | Negative |
| 1 | − | + | − | −/ND | −/− | −/ND | −/+/+ | True positive |
| 2 | − | − | + | −/ND | −/ND | +/ND | +/+/ND | True positive |
| 1 | − | − | + | −/ND | −/ND | −/− | +/+/ND | True positive |
| 1 | − | − | + | −/ND | −/ND | −/− | −/+/+ | True positive |
| 1 | − | − | + | −/ND | −/ND | −/− | −/−/ND | Negative |
a
+, positive; −, negative; ND, not done. ART, Abbott RealTime PCR; RCT, Roche Cobas TaqMan CT PCR; AC2, Gen-Probe Aptima Combo 2 assay; ACT, Gen-Probe Aptima CT assay. *, the two “false-positive” samples were posttreatment samples from previous Abbott RealTime-positive patients.