| 
      
        | Resistance pattern | No. of new    untreated patients (%) | No. of previously    treated patient (%) | P value |  
        | resistance to one    drug or more | 46 (21.2) | 17 (38.6) | <0.014 |  
        | One drug resistance | 41 (18.9) | 6 (13.6) | 0.4 |  
        | Two drug resistance | 5 (2.3) | 5 (11.4) | <0.005 |  
        | Three drug    resistance | 0 | 6 (13.6) | <0.0000001 |  
        | Multidrug-resistance | 0 | 9 (20.5) | <0.0000001 |  |