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%) | |