Table 1b.

Socio-demographic characteristics, clinical and behavior stratified on 2-category SU stigma in unweighted and weighted sample (N=188)

Variable	Unweighted			Weighted by IPTW
	Low SU stigma score = 21–58 (n=98)	High SU stigma score = 59–105 (n=90)	Standardized Difference	Low SU stigma score = 21–58 (n=98)	High SU stigma score = 59–105 (n=90)	Standardized Difference
Male gender, n (%)	65 (66.33)	61 (67.78)	0.033	70 (71.19)	60 (67.18)	−0.087
Mean age (years) (SD)	33.2 (4.8)	33.9 (5.1)	0.141	34.2 (45.5)	34 (18.1)	−0.006
Education level (>9th grade), n (%)	76 (77.55)	67 (74.44)	−0.073	77 (78.75)	69 (77.09)	−0.039
Regularly employed, n (%)	55 (56.12)	33 (36.67)	−0.401	44 (44.43)	40 (44.82)	0.009
Mean years since HIV diagnosis (SD)	7.7 (4.5)	7.8 (5.0)	0.021	7.8 (14.7)	7.5 (5.5)	−0.027
Mean CES-D score (past week) (SD)	13.6 (9.4)	20.9 (10.9)	0.717	21 (60.8)	18 (7.8)	−0.069
Mean Social support (past 4 weeks) (SD)	19.9 (5.1)	20.5 (5.1)	0.118	20.3 (26.6)	20.5 (12.8)	0.010
Mean HIV Symptom index HSI count (past 4 weeks) (SD)	3 (3.2)	4.6 (3.9)	0.449	4 (10.1)	4.1 (3.5)	0.013
Alcohol dependence (past year), n (%)	44 (44.9)	57 (63.33)	0.382	60 (60.79)	50 (55.91)	−0.099
Unhealthy alcohol use (past 30 days), n (%)	55 (56.12)	69 (76.67)	0.455	69 (70.34)	62 (68.88)	−0.031
Recent substance use (past 30 days), n (%)	31 (31.63)	46 (51.11)	0.408	36 (36.68)	37 (41.5)	0.100
Pain interference (past 4 weeks), n (%)	27 (27.55)	22 (24.44)	−0.071	24 (24.31)	23 (25.7)	0.033
Transactional sex (past year)	7 (7.14%)	9 (10%)	0.103	17 (16.85%)	10 (10.92%)	−0.173
HIV stigma (≥ 22), n (%)	30 (30.61)	46 (51.11)	0.431	47 (48.16)	41 (45.08)	−0.062

IPTW, inverse probability of treatment weighted logistic regression models using propensity scores. The percentage represents column percentage.