Table 5.
Factors associated with active tuberculosis in prisons in Colombia
| Variable | Active TB | |||
|---|---|---|---|---|
| Crude RR+ [95% CI] | P value | aRR*† [95% CI] | P value | |
| Age ≤ 32 years | 1.45 [0.91–2.30] | 0.114 | 1.49 [0.78–2.82] | 0.225 |
| Incarceration for > 1 year | 1.22 [0.74–2.00] | 0.443 | 1.30 [0.92–1.82] | 0.135 |
| Male sex | 0.42 [0.22–0.82] | 0.010 | 0.38 [0.21–0.70] | 0.002 |
| HIV | 3.80 [1.03–14.14] | 0.040 | 1.95 [0.46–8.35] | 0.367 |
| Inhaled drugs use [Ref Never] | 1.00 | 1.00 | ||
| Past | 1.27 [0.78–2.09] | 0.338 | 0.96 [0.85–1.09] | 0.553 |
| Current | 1.07 [0.58–1.97] | 0.821 | 0.98 [0.86–1.13] | 0.814 |
| Smoked drugs use [Ref Never] | 1.00 | 1.00 | ||
| Past | 2.11 [1.14–3.95] | 0.018 | 2.29 [1.30–4.01] | 0.004 |
| Current | 1.79 [1.02–3.16] | 0.043 | 1.56 [1.13–2.15] | 0.006 |
| Cigarette smoking [Ref Never] | 1.00 | 1.00 | ||
| Past | 0.91 [0.45–1.86] | 0.802 | 0.91 [0.64–1.29] | 0.593 |
| Current | 1.48 [0.88–2.51] | 0.142 | 1.23 [1.10–1.38] | < 0.001 |
| BCG scar | 1.41 [0.77–2.59] | 0.265 | 1.36 [0.89–2.06] | 0.151 |
| Contact with a TB case | 1.61 [1.03–2.53] | 0.036 | 1.31 [0.74–2.33] | 0.354 |
aRR = adjusted risk ratio; BCG = Bacillus Calmette–Guerin vaccine; TB = tuberculosis.
*
aRR are based on based on Poisson regression.
†
The standard errors or CI are adjusted for cluster effect (prisons) in the bivariable and multivariable models. The multivariable model was adjusted by BCG vaccination. Body mass index was not included because there were a high number of participants (40%) with missing data.