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. 2021 Dec 6;106(1):66–74. doi: 10.4269/ajtmh.20-0307

Table 2.

Factors associated with new latent tuberculosis infection in people deprived of liberty with short incarceration

Variable New LTBI in people deprived of liberty short incarceration
Crude RR+ [95% CI] P value aRR*† [95% CI] P value
BCG scar 0.33 [0.09–1.21] 0.094 0.30 [0.11–0.79] 0.014
COPD 1.02 [0.13–7.89] 0.986 0.81 [0.16–4.04] 0.794
Age 1.00 [0.94–1.05] 0.959 1.00 [0.97–1.04] 0.822
Inhaled drugs [Ref Never] 1.00 1.00
 Past 1.21 [0.35–4.13] 0.761 0.91 [0.16–5.15] 0.917
 Current 0.64 [0.08–5.22] 0.679 0.73 [0.74–7.11] 0.783
Smoked drugs [Ref Never] 1.00 1.00
 Past 1.10 [0.22–5.45] 0.907 1.24 [0.14–10.78] 0.843
 Current 1.22 [0.34–4.33] 0.756 1.05 [0.16–6.90] 0.952
Cigarette smoking [Ref Never] 1.00 1.00
 Past 1.3 [0.15–11.12] 0.811 1.52 [0.36–6.40] 0.564
 Current 1.01 [0.31–3.30] 0.992 1.11 [0.28–4.33] 0.872

aRR = adjusted risk ratio; BCG = Bacillus Calmette–Guerin vaccine; COPD = chronic obstructive pulmonary disease; LTBI = latent tuberculosis infection. *aRR are based on Poisson regression.

The standard errors of CI are adjusted for cluster effect (courtyard) in the bivariable and multivariable models.