| Category    of CD4 T cell count (No. per µl) | 
        Patients    on ARV | 
        Patients    not on ARV | 
       
      
        | Number    examined | 
        %    distribution of study patients by parasitaemia severity | 
        Number    examined | 
        %    distribution of study patients by parasitaemia severity | 
       
      
        | No    parasites found/µl | 
        1-500/    µl | 
        >500/    µl | 
        No    parasites found/µl | 
        1-500/    µl | 
        >500/    µl | 
       
      
        | <200 | 
        75 | 
        34.7 | 
        37.3 | 
        28.0 | 
        17 | 
        47.1 | 
        35.3 | 
        17.6 | 
       
      
        | 200-499 | 
        78 | 
        48.7 | 
        29.5 | 
        21.8 | 
        8 | 
        50.0 | 
        25.0 | 
        25.0 | 
       
      
        | ≥500 | 
        20 | 
        35.0 | 
        40.0 | 
        25.0 | 
        2 | 
        50.0 | 
        50.0 | 
        0.0 | 
       
      
        | Overall | 
        173 | 
        41.0 | 
        34.1 | 
        24.9 | 
        27 | 
        48.1 | 
        33.3 | 
        18.5 | 
       
      
        |   | 
        x2=3.554,    p=0.470 | 
        x2=0.921,    p=0.923 | 
       
      |