Table 3.
Comparative times to detection of M. tuberculosis by the BacT/Alert MB system, the manual Myco/F Lytic procedure, and the Isolator 10 system
| Bottle pair (bottle 1, bottle 2) | No. of pairs | Mean (range) time (days) to positivity |
P value | |
|---|---|---|---|---|
| Bottle 1 | Bottle 2 | |||
| Adequately filled bottles | ||||
| BacT/Alert MB, Myco/F Lytic | 6 | 16.4 (9.4–21.0) | 20.0 (14.9–24.0) | 0.2311 |
| BacT/Alert MB, Isolator 10 | 7 | 16.5 (9.4–20.2) | 23.8 (16.8–31.0) | 0.0329 |
| Myco/F Lytic, Isolator 10 | 6 | 21.1 (14.9–27.0) | 22.7 (16.8–28.8) | 0.5554 |
| All bottles | ||||
| BacT/Alert MB, Myco/F Lytic | 12 | 19.0 (9.4–32.2) | 24.9 (13.0–48.0) | 0.0286 |
| BacT/Alert MB, Isolator 10 | 7 | 16.5 (9.4–20.2) | 23.8 (16.8–31.0) | 0.0329 |
| Myco/F Lytic, Isolator 10 | 9 | 24.4 (14.9–33.3) | 21.8 (3.0–31.0) | 0.4235 |