Of the TB notifications known to be HIV positive, the median CD4 count at TB diagnosis (available in 95% of HIV-positive notifications) increased from 153 cells/μl (IQR 70, 283) in 2009 to 178 cells/μl (IQR 75, 330) in 2013 (Supplementary Table 1, p<0.001). Here, CD4 is linked to tuberculosis.