Table 4.

The odds ratio and their 95% confidence intervals to study the association between select characteristics and positivity for human immunodeficiency virus, hepatitis B surface antigen, and hepatitis C virus

Characteristics	OR (95% CI)
	HIV	HbSAg	HCV
Age
18-29	Baseline	Baseline	Baseline
30-39	7.5 (0.9, 60.3)	1.8 (1.2, 2.8)*	1.5 (0.9, 2.5)
40-49	22.7 (3.1, >100.0)*	1.5 (0.97, 2.3)	2.1 (1.4, 3.3)*
50-59	9.8 (1.3, 73.1)	1.2 (0.8, 1.7)	1.7 (1.1, 2.7)*
60-69	5.3 (0.7, 41.7)	1.2 (0.8, 1.8)	1.7 (1.1, 2.6)*
>70	3.0 (0.4, 26.1)	0.8 (0.5, 1.3)	1.6 (1.0, 2.5)*
Sex
Female	Baseline	Baseline	Baseline
Male	1.7 (1.0, 2.8)*	2.4 (1.8, 3.0)*	1.1 (0.9, 1.4)
Site
Outpatient	Baseline	Baseline	Baseline
Inpatient	1.1 (0.4, 2.7)	1.9 (1.1, 3.3)*	0.4 (0.3, 0.5)
Years
2009	Baseline	Baseline	Baseline
2010	1.2 (0.3, 4.0)	1.1 (0.7, 1.6)	0.8 (0.5, 1.2)
2011	1.3 (0.4, 4.3)	0.3 (0.2, 0.6)*	0.3 (0.2, 0.5)*
2012	0.9 (0.3, 3.2)	1.2 (0.8, 1.8)	0.8 (0.6, 1.2)
2013	0.4 (0.1, 1.9)	0.8 (0.5, 1.2)	0.9 (0.6, 1.3)
2014	3.5 (1.2, 10.0)*	0.8 (0.6, 1.3)	0.7 (0.5, 1.1)
2015	3.2 (1.1, 9.3)	0.9 (0.6, 1.3)	0.5 (0.3, 0.8)*

*P<0.05. HbSAg=Hepatitis B surface antigen; HCV=Hepatitis C virus; HIV=Human immunodeficiency virus; OR=Odds ratio; CI=Confidence interval