Table 3.
QFT-GIT ≥ 0.35 IU/ml | TST > 5 mm | TST > 10 mm | |
Variables | Adjusted OR (95% CI) | Adjusted OR (95% CI) | Adjusted OR (95% CI) |
Male sex | 1.0 (0.27–3.51) | 1.1 (0.48–2.61) | 1.5 (0.56–3.89) |
Age categorized* | 2.7 (1.32–5.46)# | 1.6 (1.00–2.69)# | 1.6 (0.90–2.82)# |
Foreign birth country | 2.5 (0.67–9.42) | 3.0 (1.03–8.99)# | 4.4 (1.35–14.36)# |
BCG vaccination | 1.7 (0.44–6.36) | 2.9 (1.19–6.86)# | 4.2 (1.38–12.85)# |
Unknown BCG status | 2.4 (0.36–16.20) | 1.4 (0.31–6.32)# | 2.6 (0.51–13.33)# |
Exposure per hour | 1.0 (0.95–1.07) | 1.0 (0.93–1.02) | 1.0 (0.95–1.04) |
Close contact | 0.7 (0.22–2.41) | 1.0 (0.45–2.26) | 2.0 (0.74–5.29) |
Nursing profession/Physician | 1.4 (0.44–4.75) | 0.7 (0.31–1.54) | 0.7 (0.30–1.83) |
Affiliation with Pulmonary Care | 0.8 (0.09–6.76) | 0.5 (0.14–2.04) | 0.5 (0.09–2.50) |
Family history of TB | 2.9 (0.46–18.01) | 3.8 (0.83–17.63) | 2.0 (0.40–10.16) |
* Compare Table 1. # Variable included in final model building. OR and 95% CI with statistical significance are printed bold. BCG = Bacillus Calmette-Guérin; CI = confidence interval; OR = Odds ratio; QFT-GIT = QuantiFERON®-TB Gold in tube; TST = tuberculin skin test.