Table 3.

Estimated odds ratios (control vs. intervention) with 95% confidence intervals from proportional odds model.

Parameter (reference = intervention)	Time
Parameter (reference = intervention)	Baseline	12-month	24-month
Sex^a
Male	1.02 (0.87, 1.19)	1.88 (1.56, 2.27)^*	5.11 (4.19, 6.22)^*
Female	1.03 (0.88, 1.23)	1.88 (1.58, 2.22)^*	4.76 (4.02, 5.64)^*
Age^a,^b (years)
≤30	1.00 (0.84, 1.19)	1.90 (1.54, 2.37)^*	4.73 (3.78, 5.92)^*
>30–40	1.10 (0.91, 1.32)	2.06 (1.68, 2.51)^*	4.83 (3.94, 5.92)^*
>40	1.14 (0.90, 1.46)	1.90 (1.49, 2.42)^*	5.94 (4.64, 7.61)^*
Education^a,^b
Primary or lower	0.98 (0.81, 1.18)	1.99 (1.63, 2.43)^*	5.47 (4.49, 6.66)^*
Junior high or above	1.04 (0.90, 1.20)	1.83 (1.56, 2.16)^*	4.66 (3.92, 5.54)^*
Discretionary money^a (Yuan)
Low (≤500)	1.00 (0.87, 1.14)	1.91 (1.65, 2.22)^*	4.95 (4.25, 5.76)^*
High (>500)	1.11 (0.90, 1.37)	1.67 (1.32, 2.11)^*	4.25 (3.35, 5.40)^*
Final model
Intervention effect^c	1.02 (0.91, 1.15)	1.95 (1.72, 2.22)^*	5.36 (4.69, 6.13)^*

Three-way interaction was not significant.

Significant time-by-age and time-by-education interactions (P = 0.0381 and P = 0.0003, respectively).

Controlling for sex, age, education, and spare money. A significant intervention status-by-time was found (P < 0.0001). All the covariates were significantly associated with the HIV-related stigma (P < 0.0001 for sex, age, and education; P = 0.0139 for discretionary money).

P < 0.0001.