Sensitivitya | |||
---|---|---|---|
Smear-positive TB cases (n = 12) | Smear-negative TB cases (n = 47) | ||
Sensitivity (n = 60) | |||
All TB cases (n = 60) | 51/60 (85.0%, 73.4–92.9) | 12/12 (100%, 73.5–100) | 38/47 (80.9%, 66.1–90.6) |
Culture-positive TB (n = 48) | 43/48 (89.6%, 77.3–96.5) | 12/12 (100%, 73.5–100) | 30/36 (83.3%, 66.5–93.0) |
PTB only (N = 20) | 18/20 (90.0%, 68.3–98.8) | 6/6 (100%, 54.1–100) | 12/14 (85.7%, 57.2–98.2) |
EPTB only (N = 7) | 7/7 (100%, 59.0–100) | – | 7/7 (100%, 59.0–100) |
PTB and EPTB (N = 21) | 18/21 (85.7%, 63.7–97.0) | 6/6 (100%, 54.1–100) | 12/15 (80.0%, 59.5–98.3) |
Culture-negative TB (n = 12) | 8/12 (66.7%, 34.9–90.1) | – | 7/11 (60.0%, 26.2–87.8) |
PTB only (N = 10) | 7/10 (70%, 34.8–93.3) | – | 6/9 (66.7%, 29.0–96.3) |
EPTB only (N = 2) | 1/2 (50%, 1.3–98.7) | – | 1/2 (50.0%, 1.3–98.7) |
Relapse TB cases | 7/9 (77.8%, 47.4–99.7) | 3/3 (100%, 29.2–100) | 4/6 (66.7%, 28.4–99.5) |
Specificity (n = 50) | |||
All non-TB controls (n = 50) | 44/50 (88.0%, 75.7–95.5) | ||
No history of previous TB (N = 35) | 32/35 (91.4%, 76.9–98.2) | – | – |
History of previous TB (“cured TB,” N = 15) | 12/15 (80.0%, 51.9–95.7) | – | – |