Table 1 Mean, median and standard deviation in the number of M. tuberculosis microcolonies, after decontamination of artificially infected sputum samples
From: Chlorhexidine decontamination of sputum for culturing Mycobacterium tuberculosis
M. tuberculosis H37Rv CIP 104475 | Mean | Median | Standard variation |
|---|---|---|---|
chlorhexidine −0.1 % | 844.4 | 736.5 | 361 |
chlorhexidine −0.1 % - squalamine 100 μg/mL | 1288 | 1396 | 576.3 |
chlorhexidine −0.35 % | 477.1 | 453 | 154.5 |
chlorhexidine −1 % | 665 | 630 | 207.6 |
NALC-NaOH | 71.9 | 66 | 58.8 |
M. tuberculosis clinical isolate 1 | Mean | Median | Standard variation |
chlorhexidine-0.1 % | 2493.1 | 2624.5 | 553.2 |
chlorhexidine-0.1 % - squalamine 100 μg/mL | 1774.5 | 1309 | 498.2 |
chlorhexidine −0.35 % | 1259.6 | 1238.5 | 393.1 |
chlorhexidine −1 % | 1426.6 | 1434 | 357.5 |
NALC-NaOH | 81.7 | 73 | 37.3 |
M. tuberculosis clinical isolate 2 | Mean | Median | Standard variation |
chlorhexidine-0.1 % | 556.1 | 621 | 155.9 |
chlorhexidine-0.1 % - squalamine 100 μg/mL | 440.4 | 433 | 134.6 |
chlorhexidine −0.35 % | 237.9 | 202 | 127.4 |
chlorhexidine −1 % | 184.7 | 180 | 50.7 |
NALC-NaOH | 4.4 | 4 | 2.83 |
M. tuberculosis clinical isolate 3 | Mean | Median | Standard variation |
chlorhexidine-0.1 % | 288.1 | 284.5 | 87.8 |
chlorhexidine-0.1 % - squalamine 100 μg/mL | 124.4 | 136 | 26.1 |
chlorhexidine −0.35 % | 174.9 | 194 | 76.5 |
chlorhexidine −1 % | 140.7 | 142.5 | 25.5 |
NALC-NaOH | 4.9 | 3 | 3.7 |