Table 1.
Background characteristics of the participants (n = 2740).
| N | % | |
|---|---|---|
| Age groups (years) | ||
| 18–29 | 838 | 30.6 |
| 30–39 | 1201 | 43.8 |
| 40–49 | 513 | 18.7 |
| 50 or above | 188 | 6.9 |
| Gender at birth | ||
| Male | 2588 | 94.5 |
| Female | 152 | 5.5 |
| Gender identity | ||
| Male | 2244 | 81.9 |
| Female | 249 | 9.1 |
| Transgender | 239 | 8.7 |
| Others | 8 | 0.3 |
| Relationship status | ||
| Currently single | 1859 | 67.8 |
| Cohabited/married with a same-sex partner | 403 | 14.7 |
| Cohabited/married with an opposite-sex partner | 478 | 17.4 |
| Highest education level attained | ||
| Junior high or below | 441 | 16.1 |
| Senior high or equivalent | 597 | 21.8 |
| College and above | 1702 | 62.1 |
| Employment status | ||
| Full-time | 1931 | 70.5 |
| Part-time/unemployed/retired/students/others | 809 | 29.5 |
| Monthly personal income, China Yuan (US dollar) | ||
| No fixed income | 311 | 11.4 |
| Below 1,000 (154) | 142 | 5.2 |
| 1,000 to 2,999 (154–462) | 349 | 12.7 |
| 3,000 to 4,999 (462–770) | 783 | 28.6 |
| 5,000 to 6,999 (770–1,078) | 528 | 19.3 |
| 7,000 to 9,999 (1,078–1,540) | 299 | 10.9 |
| At least 10,000 (1,540) | 328 | 12.0 |
| Types of health insurance | ||
| No | 316 | 11.5 |
| Basic health insurance only | 2060 | 75.2 |
| Commercial health insurance only | 70 | 2.6 |
| Both basic and commercial health insurance | 279 | 10.2 |
| Others | 15 | 0.5 |
| Study sites | ||
| Beijing | 597 | 21.8 |
| Shenyang | 348 | 12.7 |
| Tianjin | 330 | 12.0 |
| Nanjing | 318 | 11.6 |
| Hohhot | 324 | 11.8 |
| Nanning | 305 | 11.1 |
| Shenzhen | 216 | 7.9 |
| Guangzhou | 302 | 11.0 |
| Current smokers | ||
| No | 1986 | 72.5 |
| Yes | 754 | 27.5 |
| Current drinkers | ||
| No | 2204 | 80.4 |
| Yes | 536 | 19.6 |
| Self-reported BMI | ||
| <18.5 | 246 | 9.0 |
| 18.5–23.9 | 1752 | 63.9 |
| 24.0–27.9 | 604 | 22.0 |
| ≥28 | 137 | 5.0 |
| Presence of chronic conditions | ||
| No | 1828 | 66.7 |
| Yes | 912 | 33.3 |
| Chronic diseases medication use | ||
| No | 2576 | 94.0 |
| Yes | 164 | 6.0 |
| History of other vaccination in the past 3 years | ||
| No | 2111 | 77.0 |
| Yes | 629 | 23.0 |
| Time since HIV diagnosis (years) | ||
| ≤ 1 | 468 | 17.1 |
| 2–5 | 1266 | 46.2 |
| >5 | 1006 | 36.7 |
| On antiretroviral therapy (ART) | ||
| No | 72 | 2.6 |
| Yes | 2668 | 97.4 |
| HIV viral load in the most recent episode of testing | ||
| Undetectable (<50 copies/ml) | 1882 | 68.7 |
| 50–200 copies/ml | 166 | 6.1 |
| 201–400 copies/ml | 71 | 2.6 |
| >400 copies/ml | 144 | 5.3 |
| Not sure | 477 | 17.4 |
| CD4+ T-cell count in the most recent episode of testing | ||
| >500/μl | 1289 | 47.0 |
| 350–499/μl | 558 | 20.4 |
| 200–349/μl | 271 | 9.9 |
| <200/μl | 89 | 3.2 |
| Not sure | 533 | 19.5 |
| Self-reported severity of AIDS-related symptoms | ||
| Without any AIDS-related symptoms | 1396 | 50.9 |
| Very mild/mild | 896 | 32.7 |
| Moderate | 324 | 11.8 |
| Severe/very severe | 124 | 4.5 |