Table 5.

Multivariable analysis of the odds of undetectable human immunodeficiency virus (HIV) viral load in 2012 in relation to secure messaging (SM) use (as ordinal variable), for assessment of dose effect (n=3289).

Variable	Estimate	Odds ratio	95% CI	P value
Secure messaging 0 years (reference)	-	-	-	-
Secure messaging 1 year	0.3157	1.371	0.88-2.13	.16
Secure messaging 2-3 years	0.0149	1.015	0.51-2.01	.97
Age	0.0114	1.012	1.00-1.02	.01
Male	0.2759	1.318	0.87-1.99	.19
White race	0.4252	1.53	1.25-1.87	<.001
Economic need (means test)	-0.106	0.9	0.77-1.04	.16
Married	-0.064	0.938	0.77-1.14	.53
Elixhauser score	-0.008	0.992	0.96-1.03	.62
Problem alcohol use	-0.017	0.983	0.84-1.16	.84
Substance use	-0.073	0.929	0.75-1.16	.51
Depression	-0.056	0.945	0.80-1.12	.51
Psychoses	-0.421	0.657	0.45-0.95	.03
Rural	0.1501	1.162	0.86-1.58	.34