Table 5. Sensitivity per test by CD4 cell count among MGIT confirmed TB cases (n = 121).
Test | >200 n (%)N = 24 | 95% CI | 51–200 n (%)N = 45 | 95% CI | </ = 50 n (%)N = 52 | 95% CI |
DZN | 11 (45.8) | 25.5–67.1 | 11 (24.4) | 12.8–39.5 | 17 (32.7) | 20.3–47.1 |
DFM | 11 (45.8) | 25.5–67.1 | 12 (26.7) | 14.6–41.9 | 20 (38.5) | 25.3–52.9 |
CFM | 14 (58.3) | 36.6–77.8 | 16 (35.6) | 21.8–51.2 | 24 (46.2) | 32.2–60.5 |
Xpert | 22 (91.7) | 73.0–98.9 | 31 (68.9) | 53.3–81.8 | 40 (76.9) | 63.1–87.4 |
LJ | 19 (79.2) | 57.8–92.8 | 36 (80.0) | 65.4–90.4 | 43 (82.7) | 69.6–91.7 |
Key: Direct Ziehl Neelsen, DFM = Direct Fluorescent Microscopy, CFM = Concentrated Fluorescent Microscopy, LJ = Lowenstein Jensen, MGIT = Mycobacterial Growth Indicator Tube, Xpert = Xpert MTB/RIF test, CI = Confidence Interval.