Table 1.
Comparison of background factors between Shenzhen and Hong Kong respondents.
| All (n = 535) |
Shenzhen (n = 102) |
Hong Kong (n = 433) |
Shenzhen versus Hong Kong | ||
|---|---|---|---|---|---|
| Col% | Col% | Col% | ORu1 (95% CI) | ORadj2 (95% CI) | |
| Sociodemographics | |||||
| Age group | |||||
| 18–24 | 35.3 | 20.2 | 38.8 | 1.00 | 1.00 |
| 25–34 | 53.0 | 70.7 | 49.0 | 2.77 (1.62, 4.74)** | 2.35 (1.25, 4.40)** |
| 35–52 | 11.7 | 9.1 | 12.2 | 1.43 (0.61, 3.32) | 0.58 (0.20, 1.70) |
| Education level | |||||
| Junior high and below | 6.2 | 16.0 | 3.9 | 1.00 | 1.00 |
| Senior high | 55.2 | 71.0 | 51.5 | 0.34 (0.16, 0.70)** | 0.66 (0.28, 1.55) |
| University and above | 38.6 | 13.0 | 44.6 | 0.07 (0.03, 0.17)** | 0.11 (0.04, 0.29)** |
| Marital status | |||||
| Never married | 95.9 | 87.9 | 97.7 | 1.00 | 1.00 |
| Ever married (e.g., divorced, widow) | 4.1 | 12.1 | 2.3 | 5.83 (2.44, 13.93)** | 7.72 (2.34, 25.48)** |
| Employment | |||||
| Full- or part-time | 74.6 | 74.7 | 74.6 | 1.00 | 1.00 |
| Not employed | 9.2 | 23.2 | 6.0 | 3.86 (2.09, 7.14)** | 3.21 (1.53, 6.75)** |
| Student | 16.2 | 2.0 | 19.4 | 0.10 (0.02, 0.43)** | 0.18 (0.04, 0.80)* |
| Local residence | |||||
| No | 3.8 | 12.0 | 1.8 | 1.00 | 1.00 |
| Yes | 96.2 | 88.0 | 98.2 | 0.14 (0.05, 0.35)** | 0.19 (0.07, 0.58)** |
|
| |||||
| Sexual orientation and sexual behaviors | |||||
| UAI with men in the last 12 months | |||||
| No | 59.8 | 59.8 | 59.8 | 1.00 | 1.00 |
| Yes, UAI | 40.2 | 40.2 | 40.2 | 1.00 (0.64, 1.55) | 1.09 (0.64, 1.85) |
| Number of MSM partners in the last 12 months | |||||
| 1–3 | 55.0 | 50.0 | 56.1 | 1.00 | 1.00 |
| ≥4 | 45.0 | 50.0 | 43.9 | 1.28 (0.83, 1.97) | 1.24 (0.74, 2.07) |
| Had sex with females in the last 12 months | |||||
| No | 92.5 | 74.5 | 96.8 | 1.00 | 1.00 |
| Yes | 7.5 | 25.5 | 3.2 | 10.24 (5.11, 20.50)** | 5.46 (2.33, 12.81)** |
| Sexual orientation | |||||
| Homosexual | 77.3 | 59.4 | 81.5 | 1.00 | 1.00 |
| Bisexual | 18.7 | 33.7 | 15.2 | 3.03 (1.85, 4.98)** | 2.49 (1.33, 4.65)** |
| Not sure | 3.9 | 6.9 | 3.2 | 2.94 (1.14, 7.59)* | 2.40 (0.73, 7.88) |
|
| |||||
| STD infection | |||||
| Self-reported STD (last 12 months) | |||||
| No | 96.0 | 88.8 | 97.7 | 1.00 | 1.00 |
| Yes | 4.0 | 11.2 | 2.3 | 5.35 (2.20, 12.98)** | 6.96 (2.35, 20.61)** |
**P value < 0.01, *P value < 0.05.
1Odds ratio of univariate analysis.
2For the analysis of the set of sociodemographic variables, adjusted odds ratios were obtained by applying stepwise multivariate analysis using variables with P < 0.05 in the univariate analysis as candidates. Regarding the rest of the tables, adjusted odds ratios were obtained from multivariate analysis adjusted for those sociodemographic variables which were found to be significant in the stepwise multivariate analysis.