TABLE 1

Number and percentage of cases resistant to each of the six individual drugs in the shorter World Health Organization regimen, resistant to at least one of the six drugs and resistant to at least one of the five drugs excluding ethambutol, classified according to country of origin

DrugBangladesh (n=4)China (n=37)India (n=7)Indonesia (n=76)Myanmar (n=56)Philippines (n=18)Vietnam (n=15)Singapore/Malaysia (n=54)Total (n=267)
Ethambutol
 Tested4 (100)37 (100)7 (100)76 (100)56 (100)18 (100)15 (100)54 (100)267 (100)
 Resistant3 (75.0)13 (35.1)5 (71.4)38 (50.0)34 (60.7)2 (11.1)6 (40)15 (27.8)116 (43.4)
Pyrazinamide
 Tested2 (50.0)23 (62.2)3 (42.9)32 (42.1)40 (71.4)10 (55.6)11 (73.3)44 (81.5)165 (61.8)
 Resistant0 (0.0)13 (56.5)2 (66.7)20 (62.5)24 (60.0)3 (30.0)7 (63.6)3 (6.8)72 (43.6)
Ethionamide
 Tested4 (100)37 (100)7 (100)75 (98.7)56 (100)18 (100)15 (100)54 (100)266 (99.6)
 Resistant0 (0.0)14 (37.8)0 (0.0)17 (22.7)8 (14.3)8 (44.4)2 (13.3)26 (48.1)75 (28.2)
Kanamycin
 Tested4 (100)37 (100)7 (100)75 (98.7)56 (100)18 (100)15 (100)54 (100)266 (99.6)
 Resistant1 (25.0)1 (2.7)0 (0.0)7 (9.3)0 (0.0)0 (0.0)2 (13.3)0 (0.0)11 (4.1)
Ofloxacin
 Tested3 (75.0)37 (100)7 (100)72 (94.7)56 (100)18 (100)15 (100)53 (98.1)261 (97.8)
 Resistant0 (0.0)3 (8.1)0 (0.0)21 (29.2)7 (12.5)0 (0.0)3 (20.0)1 (1.9)35 (13.4)
Clofazimine
 Tested2 (50.0)15 (40.5)2 (28.6)18 (23.7)23 (40.7)7 (38.9)8 (53.3)30 (55.6)105 (39.3)
 Resistant0 (0.0)0 (0.0)0 (0.0)3 (16.7)1 (4.3)0 (0.0)0 (0.0)0 (0.0)4 (3.8)
Resistant to at least one of the above six drugs3 (75.0)23 (62.2)6 (85.7)57 (75.0)40 (71.4)10 (55.6)12 (80.0)39 (72.2)190 (71.2)
Resistant to at least one of the above five drugs excluding ethambutol1 (25.0)20 (54.1)2 (28.6)44 (57.9)30 (53.6)9 (50.0)8 (53.3)28 (51.9)142 (53.2)

Data are presented as n (%) unless otherwise noted.