. Author manuscript; available in PMC: 2018 Sep 1.

Published in final edited form as: HIV Med. 2017 Mar 19;18(8):580–586. doi: 10.1111/hiv.12493

Table 2.

Regression analyses on the effect of being a Dr. Peter Centre client on plasma viral load suppression among HIV-positive people who use illicit drugs (n = 746)

Model specification	Measure of effect [OR (95% CI)]	Mean of IPTW
Unweighted estimates
Unadjusted, generalized linear mixed effect model	2.06 (1.58 – 2.69)	-
Adjusted, generalized linear mixed effect model (excluding adherence (mediator) variable)^*	1.63 (1.22 – 2.18)	-
Adjusted, generalized linear mixed effect model (including adherence (mediator) variable)^*	1.51 (1.13 – 2.02)	-
Weighted estimates
Marginal structural model with IPTW	1.54 (1.20 – 1.99)	0.995

OR: odds ratio; CI: confidence interval; IPTW: inverse probability of treatment weights

Adjusting for gender, HCV serostatus, homelessness, mental health diagnosis, daily crack non-injection, enrollment in methadone maintenance therapy