Table 2.

Details of the 3 girls affected with juvenile idiopathic arthritis that were diagnosed with latent tuberculosis infection and received antituberculosis chemoprophylaxis

Pt	Age - gender – primary disease	TST (mm)	Treatment at QTF-G performance	QTF-G IFN-γ concentrations (TB antigens-nil)	LTBI chemoprophylaxis	Maximum ALT/AST (IU/L)	Time on anti-TNFα drugs (before/after LTBI chemoprophylaxis)
1	11y6m – female- polyarticular JIA, negative RF	0	ETN + MTX	0.55 IU/mL	H for 9 months	30/37	22 (1/24) months
2	10y7m – female - oligoarticular JIA	0	ETN	0.37 IU/mL	HR for 3 months	31/38	29 (14/25) months
3	8y5m – female - oligoarticular JIA	15	NSAIDs	4.78 IU/mL	HR for 3 months	25/24	12 (0/29) months

ALT alanine aminotransferase, AST aspartate aminotransferase, H isoniazid, IFN-γ interferon-gamma, MTX methotrexate, NSAIDs non-steroidal anti-inflammatory drugs, Pt patient, R rifampicin, RF rheumatoid factor