CD4 and tuberculosis: In patients with incident TB, the median CD4 count at ART initiation was 117 cells/mm3 (IQR 43.0 - 260.0), and 324 cells/mm3 (IQR 177.5 - 376.3) after 6 months; the difference between ART initiation and 6 months was 116 cells/mm3 (IQR 74.3 - 198.5).