| 
      * LM = Lamivudine monotherapy
        |  | LM initiation | 3 months† N=23 | 6 months‡ N=20 |  
        |  | CD4 count | CD4% | CD4 count | CD4 % | CD4 count | CD4 % |  
        | 1 | 520 | 18 | 347 | 14.2 |  |  |  
        | 2 | 1512 | 35.4 | 1540 | 36.8 | 1355 | 30.4 |  
        | 3 | 627 | 19.65 | 610 | 22.3 |  |  |  
        | 4 | 534 | 26.2 | 476 | 19.3 | 358 | 15.6 |  
        | 5 | 1984 | 32.1 | 1648 | 31.3 | 1462 | 33.6 |  
        | 6 | 527 | 25.4 | 569 | 24.6 | 549 | 22.5 |  
        | 7 | 578 | 29.4 | 380 | 24 | 447 | 23.2 |  
        | 8 | 500 | 30.6 | 546 | 29.7 | 755 | 30.4 |  
        | 9 | 84 | 3.4 | 8 | 0.58 | Stopped LM after 5 months |  
        | 10 | 475 | 11.2 | 244 | 10 | 123 | 3.8 |  
        | 11 | 994 | 41.5 | 759 | 30.2 | 761 | 30.4 |  
        | 12 | 341 | 10.8 | 316 | 13.6 | Stopped LM after 4 months |  
        | 13 | 547 | 16.3 | 425 | 14.7 | 478 | 15.3 |  
        | 14 | 895 | 21.53 | 1188 | 13.09 | 748 | 17.43 |  
        | 15 | 1745 | 14.69 |  |  | 1066 | 16.35 |  
        | 16 | 1730 | 25.36 | 1101 | 30 | 1166 | 29.94 |  
        | 17 | 1005 | 34.35 | 371 | 28.54 | 186 | 13.52 |  
        | 18 | 752 | 28.96 | 752 | 28.9 | 540 | 23.89 |  
        | 19 | 1239 | 19.8 |  | Defaulted follow-up after 3 months |  
        | 20 | 982 | 17.9 |  |  | 872 | 19.41 |  
        | 21 | 285 | 18.4 |  |  | 285 | 19.8 |  
        | 22 | 1632 | 33.7 | 478 | 16.6 | 1136 | 22.7 |  
        | 23 | 715 | 34.8 | 477 | 29.2 | 649 | 31.6 |  † 4/23 did not have a CD4 measure performed at 3 months of follow-up.
 ‡ 2/20 who remained on LM at 6 months did not have a CD4 measure performed.
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