CD4 and tuberculosis: The median CD4 cell count was 288 (IQR 156–385) and 144 (IQR 88–304) in the successful and unsuccessful treatment outcome groups, respectively (P = 0.161); 38% of participants with successful TB treatment outcomes had an undetectable RNA HIV viral load (<20 copies/ml) compared to 11% with unsuccessful TB treatment outcomes (P = 0.033).