Subgroups of RD use | Total | Recent HIV infection (N = 186) | Established HIV infection (N = 250) |
|---|
n (%) | Adjusted modelb | P | n (%) | Adjusted modelb | P |
|---|
aOR (95% CI) | aOR (95% CI) |
|---|
0DUs | 3216 | 116 (3.6) | 1 | – | 161 (5.0) | 1 | – |
1DUs | 1047 | 62 (5.9) | 2.2 (1.5–3.0) | < 0.001 | 79 (7.5) | 2.1 (1.5–2.8) | < 0.001 |
2DUs | 155 | 7 (4.5) | 2.3 (1.0–5.2) | 0.054 | 6 (3.9) | 1.4 (0.6–3.4) | 0.433 |
3DUs | 70 | 1 (1.4) | 0.8 (0.1–5.8) | 0.809 | 4 (5.7) | 1.9 (0.6–5.4) | 0.247 |
- 0DUs No RDs used in the previous 6 months, 1DUs One type of RD used in the previous 6 months, 2DUs Two types of RDs used in the previous 6 months, 3DUs Three or more types of RDs used in the previous 6 months. aRecent and established infections were determined using the BED-CEIA. The BED-CEIA could not be conducted on samples from eight HIV antibody-positive participants because of insufficient blood specimens. bAdjusted odds ratios (aOR) and the corresponding 95% CI were derived through multivariable logistic regression analysis with adjustment for the following social demographics: study site (Shanghai, Nanjing, Changsha, Zhengzhou, Ji’nan, Shenyang, and Kunming), age (18–25, 26–30, and > 30 years), residence (local cities and non-local cities), education (junior school or below, high school, and college or above), marital status (never married and married), occupation (student and non-student), monthly income (no income, 1–599, and ≥ 600 USD), primary position during AI (top, bottom, and versatile), and knowledge of HIV prevention (inadequate and adequate)
