Table IV.

C-statistics for raw self-report items and 3-item scale predicting undetectable viral load status (n=431).

	n (%)	3-Item Scale	% Days Taken	% Rating	% Frequency
Overall
VL undetectable	324 (75%)	0.760	0.728	0.739	0.730
VL detectable	107 (25%)
Baseline Housing Status
Homeless (n = 292)
VL undetectable	216 (74%)	0.783	0.768	0.765	0.744
VL detectable	76 (26%)
Unstably Housed (n = 139)
VL undetectable	108 (78%)	0.695	0.668	0.667	0.700
VL detectable	31 (22%)
Baseline CES-D Score
CES-D Score < 10 (n = 127)
VL undetectable	100 (79%)	0.787	0.779	0.754	0.763
VL detectable	27 (21%)
CES-D Score ≥ 10 (n = 303)
VL undetectable	223 (74%)	0.747	0.728	0.733	0.722
VL detectable	80 (26%)
Baseline Injection Drug Use, Ever
No, never (n = 306)
VL undetectable	229 (75%)	0.783	0.744	0.757	0.745
VL detectable	77 (25%)
Yes, ever (n = 121)
VL undetectable	92 (76%)	0.710	0.751	0.704	0.700
VL detectable	29 (24%)
Baseline ASSIST Substance Use Score, including Alcohol and Tobacco, Median cut-off: 26
< Median (n = 211)
VL undetectable	161 (76%)	0.800	0.718	0.767	0.759
VL detectable	50 (24%)
≥ Median (n = 220)
VL undetectable	163 (74%)	0.741	0.761	0.728	0.721
VL detectable	57 (26%)

¹C-statistics were calculated using PROC SURVEYLOGISTIC in SAS 9.4, adjusting for interview time point and clustering on unique survey respondents.

Abbreviations: CES-D: Center for Epidemiologic Studies Depression Scale; VL, viral load;

Since adherence and outcomes were assessed at multiple time points, we have 431 separate observations for the 336 participants included in this analysis