| XDR | 16 (55.2) |
| Pre-XDR-TB | 13 (44.8) |
| MDR+any one SLD | 10 (34.5) |
| MDR+any two SLDs | 3 (10.3) |
| MDR+any three SLDs | 12 (41.4) |
| MDR+any four SLDs | 4 (13.8) |
| Any drug resistance | |
| Kanamycin | 12 (41.4) |
| Capreomycin | 5 (17.2) |
| Amikacin | 7 (24.1) |
| Ofloxacin | 29 (100) |
| Ethionamide | 13 (44.8) |
| Clofazimine | 11 (37.9) |
| Prothionamide | 7 (24.1) |
| PAS | 8 (27.6) |
| Cycloserine | 8 (27.6) |
Data are presented as n (%). XDR: extremely drug resistant; TB: tuberculosis; pre-XDR-TB: multidrug-resistant (MDR)-TB plus quinolone resistance without resistance against injectables; SLD: second-line drug resistance; PAS: para-aminosalicylic acid. #: drug-susceptibility testing against amoxycillin-clavulanic acid, linezolid, levofloxacin and moxifloxacin was not performed.