Prevalence of drug resistance in new and previously treated civilian cases (n = 309) in Samara, Russia
| Antibiotic | New cases | Previously treated cases | ||
|---|---|---|---|---|
| Resistant(n) | Resistant(% and 95% CI) | Resistant(n) | Resistant(% and 95% CI) | |
| *One culture was repeatedly contaminated. | ||||
| †A smaller number (n = 131) of patient culture cases were analysed for pyrazinamide resistance. | ||||
| Isoniazid* | 32/95 | 33.7 (24.7 to 43.6) | 147/214 | 68.7 (62.2 to 74.6) |
| Rifampicin | 22/96 | 22.9 (15.3 to 32.1) | 129/214 | 60.3 (53.6 to 66.7) |
| MDR TB | 19/96 | 19.8 (12.7 to 28.7) | 119/214 | 55.6 (48.9 to 62.2) |
| Streptomycin | 27/96 | 28.1 (19.8 to 37.7) | 107/214 | 50.0 (43.3 to 56.6) |
| Ethambutol | 11/96 | 11.5 (6.2 to 19.0) | 64/214 | 29.9 (24.0 to 36.3) |
| Pyrazinamide† | 3/49 | 6.1 (1.6 to 15.8) | 12/82 | 14.6 (8.2 to 23.6) |