| XDR | Pre-XDR-TB | p-value | Total | |
| Cured | 5 (31.2) | 4 (30.8) | 0.707# | 9 (31.0) |
| Still on treatment¶ | 7 (43.7) | 5 (38.5) | 0.774 | 12 (41.4) |
| Failed | 0 | 2 (15.4) | 0.192+ | 2 (6.8) |
| Default | 2 (12.5) | 1 (7.7) | 0.849# | 3 (10.3) |
| Died | 2 (12.5) | 1 (7.7) | 0.849# | 3 (10.3) |
| Total | 16 (100) | 13 (100) | 29 (100) |
Data are presented as n (%), unless otherwise stated. XDR: extremely drug resistant; TB: tuberculosis; pre-XDR-TB: multidrug resistant-TB plus quinolone resistance without resistance against injectables. #: Yates’ correction applied; ¶: all patients completed >12 months of treatment and, to date, are persistently culture negative; +: Fisher's exact test applied.