Logistic regression results of risk factors for latent tuberculosis infection in UK-born homeless
| Risk factor | Univariable OR (95% CIs) | Multivariable OR (95% CIs) | P value* |
| Age | |||
| <30 | 1.0 | 1.0 | |
| 30–49 | 1.36 (0.61 to 3.07) | 0.69 (0.14 to 3.51) | |
| 50+ | 1.98 (0.86 to 4.53) | 2.04 (0.41 to 10.05) | 0.07 |
| Total time spent homeless | |||
| <1 year | 1.0 | 1.0 | |
| 1 year | 0.77 (0.31 to 1.91) | 0.32 (0.06 to 1.79) | |
| 2–3 years | 1.24 (0.52 to 2.94) | 0.79 (0.18 to 3.44) | |
| >3 years | 0.96 (0.41 to 2.29) | 0.82 (0.20 to 3.32) | 0.43 |
| Has ever been to prison | |||
| No | 1.0 | 1.0 | |
| Yes | 1.08 (0.67 to 1.75) | 3.49 (1.10 to 11.04) | 0.018 |
| Illicit drug usage | |||
| Neither | 1.0 | 1.0 | |
| Has ever smoked heroin/crack | 1.33 (0.74 to 2.37) | 1.44 (0.49 to 4.22) | |
| Has ever injected drugs | 1.42 (0.77 to 2.64) | 2.65 (0.92 to 7.62) | 0.20 |
*Likelihood ratio test; two indeterminate interferon gamma release assay results grouped with negative results.