Table 3.

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.