Median TST induration in BCG-vaccinated and BCG-unvaccinated children at different ages who are IGRA negative
| All children | BCG vaccinated | BCG unvaccinated | |||||
|---|---|---|---|---|---|---|---|
| Age (years) | Number | Median TST (IQR) | Number | Median TST (IQR) | Number | Median TST (IQR) | p Value |
| All children | 314 | 0 (0–6) | 228 | 0 (0–10) | 86 | 0 (0–0) | <0.001 |
| 0 to <2 | 76 | 0 (0–10) | 57 | 4 (0–12) | 19 | 0 (0–0) | <0.001 |
| 2 to <5 | 80 | 0 (0–4) | 55 | 0 (0–8) | 25 | 0 (0–0) | 0.001 |
| 5 to <10 | 102 | 0 (0–5) | 75 | 0 (0–10) | 27 | 0 (0–3) | 0.12 |
| 10 to <15 | 56 | 0 (0–7) | 41 | 0 (0–8) | 15 | 0 (0–0) | 0.09 |
IGRA, interferon γ release assay; TST, tuberculin skin test.