Table 5.

Predictive value of tests by pairwise comparisons for no progression to tuberculosis

	TST-5	TST-10	TST-15	T-SPOT.TB	QuantiFERON-TB Gold In-Tube
TST-5	..	1·18 (0·86–1·63; 0·300)	1·35 (0·90–2·01; 0·147)	1·28 (0·77–2·12; 0·337)	1·60 (0·97–2·65; 0·065)
TST-10	..	..	1·14 (0·86–1·51; 0·368)	1·08 (0·72–1·62; 0·704)	1·35 (0·91–2·01; 0·130)
TST-15	..	..	..	0·95 (0·67–1·36; 0·784)	1·19 (0·84–1·68; 0·319)
T-SPOT.TB	..	..	..	..	1·25 (0·97–1·61; 0·081)

Values indicate the ratio of test negativity rates (with 95% CI and p values) in participants who progressed to active tuberculosis compared with those who did not comparing test A (horizontally across table) with test B (vertically up table). A value below 1 indicates a negative result on test A is a stronger predictor of no progression to tuberculosis than a negative result on test B. TST=tuberculin skin test. TST-5=TST with threshold ≥5 mm. TST-10=TST with threshold ≥10 mm. TST-15=BCG-dependent definition of TST: ≥15 mm for BCG-vaccinated participant and >5 mm non-vaccinated participant