Variable | All (N = 838) | TST-positive aat baseline (n = 523) | TST converters (n = 62) | OR 95% CI | P d | TST-negative (n = 253) | OR 95% CI | P e |
---|---|---|---|---|---|---|---|---|
At Baseline | ||||||||
TST1 (mm) b | ||||||||
Median [IQR] | 13 [0–17] | 16 [14–19] | 0 [0–3] | 0 [0–2] | ||||
Mean [SD] | 11 {7.9} | 16 {3.7} | 1 {2.3] | − | − | 2 {2.9} | − | − |
Range | [0–30] | [10–30] | [0–8] | [0–9] | ||||
≥5 mm | 576 (69%) | − | − | − | ||||
≥10 mm | 523 (62%) | − | − | − | ||||
≥15 mm | 349 (42%) | − | − | − | ||||
At 8–12 weeks | ||||||||
Max TST (mm) c | ||||||||
Median [IQR] | 14 [8–18] | 16 [14–19] | 16 [12–20] | 0 [0–6] | ||||
Mean [SD] | 12 {7.3} | 16 {3.7} | 16 {5.2} | 0.98 (0.92–1.05) | 0.58 | 3 {4.3} | − | − |
Range | [0–30] | [10–30] | [0–25] | [0–17] | ||||
≥5 mm | 656 (78%) | − | − | − | ||||
≥ 10 mm | 607 (72%) | − | − | − | ||||
≥ 15 mm | 396 (47%) | − | − | − | ||||
IGRA (IU/mL) | ||||||||
Median [IQR] | 1.03 [0.03-8.6] | 4.4 [0.68–10] | 4.6 [0.07–10] | 0.02 [0–0.11] | ||||
Mean [SD] | 3.6 {4.2} | 5.1 {4.2} | 5.0 {4.6} | 1.01 (0.95-1.07) | 0.75 | 0.6 {1.9} | 1.42 (1.28-1.58) | <0.001 |
Range | [0–14] | [0–14] | [0–10] | [0–10] | ||||
Negative | 292 (41) | 78 (19) | 18 (31) | 1.92 (1.02–3.7) | 0.04 | 196 (84) | − | − |
Positive | 420 (59) | 343 (81) | 40 (69) | Ref | 37 (16) |