Demographic and clinical details of study subjects
Diagnosis | |||
---|---|---|---|
Latent TB(n = 42) | TB disease(n = 9) | Uninfected(n = 50) | |
*Three children with TB disease did not have TST. | |||
†34 with pulmonary TB; 1 with lymph node TB. | |||
Demographic data | |||
Median age in years(range) | 9.2(0.6–17.9) | 3.9(1.2–17.1) | 6.8(0.4–16.9) |
Male | 23 (55%) | 6 (67%) | 32 (64%) |
Born in high TB prevalence area | 37 (88%) | 7 (78%) | 48 (96%) |
TB contact | |||
Household† | 24 (60%) | 5 (56%) | 6 (12%) |
Non-household | 0 (0%) | 0 (0%) | 1 (2%) |
Unknown | 7 (14%) | 1 (11%) | 8 (16%) |
None | 11 (26%) | 3 (33%) | 35 (70%) |
Clinical | |||
BCG | |||
Scar present | 19 (45%) | 3 (33%) | 27 (54%) |
History but no scar | 2 (5%) | 0 | 2 (4%) |
No evidence of prior BCG | 21 (50%) | 6 (67%) | 21 (42%) |
Fevers | 1 (2%) | 7 (78%) | 0 |
Night sweats | 0 (0%) | 6 (66%) | 0 |
Cough >2 weeks | 0 (0%) | 6 (66%) | 0 |
Tuberculin skin test | |||
0–5 mm | 0 (0%) | 37 (74%) | |
>5–10 mm | 9 (22%) | 2 (22%)* | 9 (18%) |
>10–15 mm | 11 (26%) | 1 (11%) | 4 (8%) |
>15 mm | 22 (52%) | 3 (33%) | 0 |
Chest radiograph | |||
Normal | 38 (90%) | 3 (33%) | 12 (24%) |
Abnormal | 0 (0%) | 6 (66%) | 0 |
Not done/unavailable | 4 (10%) | 38 (76%) |