TABLE 3.
Sensitivities and specificities of the C. trachomatis assays used on male and female urine samples
| Urine sample group and assay | Sensitivity |
Specificity |
||
|---|---|---|---|---|
| % (95% CI) | No. of positive samples/true positives | % (95% CI) | No. of true negatives/no. of negative samples | |
| Male and female | ||||
| Abbott RealTime CT m2000 | 95.3 (90.6-97.7) | 141/148 | 99.9 (99.5-100) | 1,482/1,484 |
| Roche Cobas TaqMan CT | 83.0 (75.5-87.7) | 122/148 | 100.0 (99.8-100) | 1,484/1,484 |
| Gen-Probe Aptima Combo 2 | 99.3 (96.3-99.8) | 147/148 | 99.9 (99.6-100) | 1,483/1,484 |
| Male | ||||
| Abbott RealTime CT m2000 | 96.2 (89.4-98.6) | 76/79 | 99.8 (98.9-100) | 508/509 |
| Roche COBAS TaqMan CT | 83.5 (73.8-90.1) | 66/79 | 100.0 (99.3-100) | 509/509 |
| Gen-Probe Aptima Combo 2 | 98.7 (93.3-99.7) | 78/79 | 100.0 (99.3-100) | 509/509 |
| Female | ||||
| Abbott RealTime CT m2000 | 94.2 (86.0-97.6) | 65/69 | 99.9 (99.4-100) | 974/975 |
| Roche Cobas TaqMan CT | 81.2 (70.3-88.6) | 56/69 | 100.0 (99.6-100) | 975/975 |
| Gen-Probe Aptima Combo 2 | 100.0 (94.9-100.0) | 69/69 | 99.9 (99.4-100) | 974/975 |