TABLE 1.
Distribution of primary test results on 1,632 urine samples
| No. of samples | Resulta by the following assay: |
|||||
|---|---|---|---|---|---|---|
| Abbott m2000 | Roche CT | Gen-Probe AC2 | Arbiter test (ACT assay) | Reference standardb | In-house mutant plasmid PCR | |
| 28 | + | + | + | + | + | + |
| 91 | + | + | + | + | + | − (3 NT) |
| 7 | + | − | + | + | + | + |
| 15 | + | − | + | + | + | − |
| 1 | − | + | + | + | + | + |
| 1 | − | + | + | + | + | NT |
| 4 | − | − | + | + | + | − |
| 1 | − | + | − | + | + | NT |
| 2 | + | − | − | − | − | ND |
| 1 | − | − | + | − | − | ND |
| 1,481 | − | − | − | − | − | ND |
a
+, positive, −, negative; ND, not done; NT, nontypeable.
b
The reference standard is defined as positive results for a sample by any two of the four commercial assays.