Table 5.
Time to sputum culture conversion in MDR-TB and PTB cat I patients during treatment.
| MDR-TB patients (n = 236) |
PTB Cat I patients (n = 60) |
|||
|---|---|---|---|---|
| Sputum culture conversion (in months) | n (%) | Cumulative frequency (%) | n (%) | Cumulative frequency (%) |
| 0 | 0 (0) | 0 | 15 (25) | 25 |
| 1 | 7 (3) | 3 | 33 (55) | 80 |
| 2 | 88 (37.3) | 40.3 | 09 (15) | 95 |
| 3 | 78 (33.1) | 73.4 | 2 (3.3) | 98.3 |
| 4 | 13 (5.5) | 78.9 | 1 (1.7) | 100 |
| 5 | 26 (11) | 89.9 | – | – |
| 6 | 2 (0.8) | 90.7 | – | – |
| 7 | 2 (0.8) | 91.5 | – | – |
| No conversion | 20 (8.5) | 100 | 0 | 0 |
| Sputum culture time conversion* | 2.64 ± 1.36 | 0.8 ± 0.7 | ||
| Median (IQR) = 3 (1) | Median (IQR) = 1(1) | |||
*Plus-minus values are means ± SD (in months), p < 0.001; MDR-TB: multi-drug resistance TB; PTB Cat I: pulmonary TB Category I; The numerical 0-9 represent sputum smear conversion in months; IQR = Inter Quartile Range.