Table 1.
Recovery of M. tuberculosis from sputum specimens cultured on Ogawa or MGIT medium after routine oral rinsing with water or an antiseptic mouthwash before collection
| Study groupa | No. (%) of cultures that were: |
Time to detection (days) using: |
|||||
|---|---|---|---|---|---|---|---|
| Positive for M. tuberculosis |
Contaminated |
||||||
| Ogawa | MGITb | Both | Ogawa | MGIT | Ogawa | MGIT | |
| Control | 28/120 (23) | 35/120 (29) | 40/120 (33) | 11/120 (9) | 22/120 (18) | 22 | 9 |
| Intervention | 28/120 (23) | 40/120 (33) | 41/120 (34) | 8/120 (7) | 13/120 (11) | 22 | 12 |
a
The control group rinsed with water, and the intervention groups rinsed with a commercial mouthwash containing chlorhexidine or cetylpyridinium chloride.
b
MGIT, Bactec MGIT 960.