Also in female patients (0.342 cases per 100 patient-years of observation, CI [0.217–0.513], p = 0.0005), patients with CD4 + cell counts < 200 cells/μl (0.444 cases per 100 patient-years of observation, CI [0.290–0.651], p < 0.001) and viral loads ≥ 5 log10 (0.428 cases per 100 patient-years of observation, CI [0.262–0.662], p < 0.001) showed significantly higher TB IDRs (Table 4). Here, CD4 is linked to tuberculosis.