Table 3 Factors associated with syphilis infection among MSM in Southern China in the training dataset, 2017–2019 (N = 1456)
Characteristics | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
OR (95%CI) | P | OR (95%CI) | P | |
Age | ||||
< = 25 | Ref | Ref | ||
26–35 | 1.50 (1.04–2.18) | 0.030 | 1.29 (0.81–1.86) | 0.329 |
36–45 | 2.11 (1.43–3.13) | < 0.001 | 1.62 (1.04–2.52) | 0.032 |
> 45 | 2.02 (1.29–3.15) | 0.002 | 1.90 (1.15–3.14) | 0.012 |
Legal marital status | ||||
Never married | 0.92 (0.70–1.21) | 0.536 | – | |
Ever married/engaged | Ref | – | ||
Highest educational attainment | ||||
Less than high school | 1.32 (0.94–1.85) | 0.112 | – | |
High school | 1.11 (0.81–1.51) | 0.520 | – | |
College and above | Ref | – | ||
Ethnicity | ||||
Han | Ref | |||
Non-Han | 2.42 (1.01–5.76) | 0.046 | ||
Length of time residence in current location | ||||
0 ~ 6 months | 1.58 (0.96–2.59) | 0.070 | – | |
Over 6 months | Ref | – | ||
Main venue used to seek male sexual partners | ||||
Internet | Ref | Ref | ||
Non-internet | 8.22 (5.98–11.29) | < 0.001 | 10.49 (7.38–14.91) | < 0.001 |
Local residence | ||||
Yes | Ref | |||
No | 2.49 (1.90–3.26) | < 0.001 | ||
Consistent condom uses with men in the past 6 months | ||||
Yes | Ref | Ref | ||
No | 1.41 (1.07–1.85) | 0.015 | 1.41 (1.03–1.96) | 0.032 |
Had commercial sex with men in the past 6 months | ||||
Yes | 2.50 (1.71–3.63) | < 0.001 | 2.50 (1.59–3.94) | < 0.001 |
No | Ref | Ref | ||
Condom use in the last commercial sex | ||||
Yes | Ref | – | ||
No | 2.93 (1.34–6.41) | 0.002 | – | |
Had sex with women in the past 6 months | ||||
Yes | 0.72 (0.49–1.07) | 0.109 | – | |
No | Ref | – | ||
Consistent condom uses with women in the past 6 months | ||||
Yes | Ref | – | ||
No | 1.77 (0.83–3.77) | 0.139 | – | |
Drug use | ||||
Yes | 0.92 (0.38–2.24) | 0.853 | – | |
No | Ref | – | ||
Had infected with STD in the past year | ||||
Yes | 3.70 (2.52–5.43) | < 0.001 | 5.10 (3.18–8.19) | < 0.001 |
No | Ref | Ref | ||