CD4 and tuberculosis: After a mean (± SD) follow-up duration of 943.3 ± 177.4 and 952.5 ± 98.8 days (P = 0.683) for patients with negative and those with positive T-Spot.TB results, respectively, those with positive T-Spot.TB maintained a higher CD4 count (592.8 ± 294.9 vs 451.9 ± 274.3 cells/μL, P<0.001) and lower plasma HIV RNA viral load (1.85 ± 0.97 vs 2.64 ± 1.50 log10 copies/mL, P<0.001) than those with negative T-Spot.TB despite the fact that similar proportions of the two groups were on cART (92.2% vs 90.1%, P = 0.589).