Table III.

Effects of Different Types of Drug Use at Baseline and PHN Sessions on Number of HIV Care Visits, ART Adherence, and Undetectable VL

Model parameters	No. of HIV care visits Coef. [95% CI]	ART adherence Coef. [95% CI]	Undetectable VL Coef. [95% CI]
	Any drug
	Model IV n = 128b	Model VII n = 93b,d	Model X n = 93b,d
Any drug	−0.69 [−1.21, −0.16]*	−1.00 [−2.11, 0.11]✝	2.69 [−1.88, 7.26]
PHN sessionsa	0.18 [0.07, 0.29]**	0.93 [0.51, 1.35]***	2.02 [0.49, 3.55]**
Any drug × PHN sess.a	0.15 [0.00, 0.31]✝	_e	−1.38 [−2.99, 0.23]✝
Intercept	−0.28 [−0.65, 0.10]	_f	−5.61 [−9.92, −1.30]*
	Any Stimulant
	Model V n = 128b	Model VIII n = 93b,d	Model XI n = 93b,d
Any stimulant	−0.92 [−1.42, −0.41]***	−0.52 [−1.52, 0.48]	0.88 [−2.21, 3.97]
PHN sessionsa	0.17 [0.07, 0.27]**	0.87 [0.46, 1.28]***	1.17 [0.32, 2.01]**
Any stim. × PHN sess.a	0.20 [0.05, 0.35]*	-e	−0.46 [−1.47, 0.54]
Intercept	−0.24 [−0.58, 0.11]	_f	−3.90 [−6.54, −1.27]**
	Methamphetamine
	Model VI n = 127 b,c	Model IX n = 92b,c,d	Model XII n = 92b,c,d
Methamphetamine	−0.93 [−1.46, −0.40]***	−0.19 [−1.18, 0.79]	−0.07 [−2.97, 2.83]
PHN sessionsa	0.16 [0.05, 0.26]**	0.88 [0.47, 1.29]***	0.91 [0.19, 1.62]*
Meth. × PHN sess.a	0.24 [0.08, 0.39]**	_e	−0.05 [−0.98, 0.89]
Intercept	−0.27 [−0.60, 0.07]	_f	−3.37 [−5.60, −1.14]**

Note. PHN = peer health navigation. VL = viral load.

^abase-2 log transformed.

^bPHN session data was missing for one participant.

^cOne participant did not provide data on methamphetamine use.

^dData of participants were excluded who were undetectable at the time of enrollment (n = 35) or whose lab work was missing (n = 4).

^eThe interaction term was dropped due to model estimation problems.

^fIntercepts (cutpoints) are not reported.

^✝p ≤ .1.

^*p ≤ .05.

^**p ≤ .01.

^***p ≤ .001.