| Characteristics  | 
        Number | 
        % | 
        Event | 
       
      
        | TB smear | 
       
      
        | Not    determined | 
        103 | 
        19.81 | 
        10 | 
       
      
        | Negative | 
        346 | 
        66.54 | 
        28 | 
       
      
        | Positive | 
        71 | 
        13.65 | 
        13 | 
       
      
        | Original Regimen  | 
       
      
        | d4t    (30)-3TC-NVP | 
        161 | 
        30.96 | 
        15 | 
       
      
        | d4t    (40)-3TC-NVP | 
        101 | 
        19.42 | 
        8 | 
       
      
        | d4t    (30)-3TC-EFV  | 
        139 | 
        26.73 | 
        8 | 
       
      
        | d4t    (40)-3TC-EFV  | 
        93 | 
        17.88 | 
        16 | 
       
      
        | AZT-3TC-NVP | 
        21 | 
        4.04 | 
        4 | 
       
      
        | AZT-3TC-EFV | 
        5 | 
        0.96 | 
        0 | 
       
      
        | CD4 count ( cells/mm3) | 
       
      
        | ≤50 | 
        96 | 
        18.46 | 
        14 | 
       
      
        | 51-100 | 
        101 | 
        19.42 | 
        11 | 
       
      
        | 101-200 | 
        207 | 
        39.81 | 
        14 | 
       
      
        | ≥201 | 
        116 | 
        22.31 | 
        12 | 
       
      
        | Cotimoxazole | 
       
      
        | Yes  | 
        429 | 
        82.50 | 
        41 | 
       
      
        | No  | 
        91 | 
        17.50 | 
        10 | 
       
      
        | Weight (Kg) | 
       
      
        | ≤40  | 
        97 | 
        18.65 | 
        12 | 
       
      
        | 40-50  | 
        225 | 
        43.27 | 
        23 | 
       
      
        | 50-60  | 
        147 | 
        28.27 | 
        13 | 
       
      
        | >60  | 
        51 | 
        9.81 | 
        3 | 
       
      
        | Functional status  | 
       
      
        | Working  | 
        265 | 
        50.96 | 
        17 | 
       
      
        | Ambulatory  | 
        214 | 
        41.15 | 
        30 | 
       
      
        | Bedridden  | 
        41 | 
        7.88 | 
        4 | 
       
      
        | WHO stage | 
       
      
        | Stage    I | 
        33 | 
        6.35 | 
        3 | 
       
      
        | Stage    II | 
        83 | 
        15.96 | 
        3 | 
       
      
        | Stage    III | 
        336 | 
        64.62 | 
        39 | 
       
      
        | Stage    IV | 
        68 | 
        13.08 | 
        6 | 
       
      
        | Hemoglobin (g/dl) | 
       
      
        | ≤11  | 
        223 | 
        42.88 | 
        14 | 
       
      
        | >11  | 
        297 | 
        57.12 | 
        37 | 
       
      
        | D4T: Stavudine; EFV: Efavirenz; AZT: Zidovudine; NVP:    Nevirapine; 3TC: Lamiduvine; | 
       
      |