Table 2 Risk factors associated with overall MG infection
Characteristic | Number (%) with characteristic | MG infection number (%) | Crude odds ratio (95% CI) | P value |
|---|---|---|---|---|
N = 409 |  |  |  |  |
Age in years | Â | Â | Â | Â |
 ≤30 | 233 (57.0) | 20 (8.6) | 1.18 (0.57–2.44) | 0.660 |
 >30 | 176 (43.0) | 13 (7.4) | 1 |  |
Ethnicity | Â | Â | Â | Â |
 Han | 391 (95.6) | 32 (8.2) | 1.52 (0.20–11.76) | 0.691 |
 Other | 18 (4.4) | 1 (5.6) | 1 |  |
Education | Â | Â | Â | Â |
 Senior high school or lower | 264 (64.5) | 24 (9.1) | 1.51 (0.68–3.34) | 0.308 |
 Junior college or higher | 145 (35.5) | 9 (6.2) | 1 |  |
Marital status | Â | Â | Â | Â |
 Unmarried | 307 (75.1) | 26 (8.5) | 1.26 (0.53–2.99) | 0.606 |
 Married | 102 (24.9) | 7 (6.9) | 1 |  |
Residential status | Â | Â | Â | Â |
 Guangdong Province | 97 (23.7) | 5 (5.2) | 1 |  |
 Other Province | 312 (76.3) | 28 (9.0) | 1.81 (0.68–4.83) | 0.234 |
Cohabiting status | Â | Â | Â | Â |
 Living alone | 186 (45.5) | 18 (9.7) | 1.09 (0.45–2.60) | 0.855 |
 Living with spouse or family | 73 (17.8) | 2 (2.7) | 0.29 (0.06–1.39) | 0.120 |
 Living with men | 61 (14.9) | 5 (8.2) | 0.90 (0.28–2.91) | 0.866 |
 Living with women or others | 89 (21.8) | 8 (9.0) | 1 |  |
Presenting STI symptoms in the past year | Â | Â | Â | Â |
 Yes | 35 (8.6) | 5 (14.3) | 2.06 (0.74–5.72) | 0.166 |
 No | 374 (91.4) | 28 (7.5) | 1 |  |
Sexual orientation | Â | Â | Â | Â |
 Homosexual only | 134 (34.4) | 10 (7.5) | 0.57 (0.11–2.84) | 0.488 |
 Bisexual (homosexual predominance) | 240 (61.5) | 18 (7.6) | 0.57 (0.12–2.69) | 0.476 |
 Bisexual (heterosexual predominance) | 16 (4.1) | 2 (12.5) | 1 |  |
Sexual partners | Â | Â | Â | Â |
 Only men or predominantly men | 349 (89.4) | 26 (7.4) | 1 |  |
 Almost equally or predominantly women | 41 (10.5) | 4 (9.8) | 1.34 (0.44–4.06) | 0.601 |
Commercial sex work | Â | Â | Â | Â |
 Sometimes | 93 (22.9) | 5 (5.4) | 0.58 (0.22–1.54) | 0.274 |
 Never | 313 (77.1) | 28 (8.9) | 1 |  |
Anal intercourse in the past 6 mo | Â | Â | Â | Â |
 Yes | 386 (95.1) | 32 (8.3) | 1.72 (0.22–13.25) | 0.604 |
 No | 20 (4.9) | 1 (5.0) | 1 |  |
Unprotected anal intercourse in past 6 mo | Â | Â | Â | |
 No | 275 (71.4) | 20 (7.3) | 1 |  |
 Yes | 110 (28.5) | 12 (10.9) | 1.56 (0.74–3.31) | 0.246 |
Vaginal sex in the past 6 mo | Â | Â | Â | |
 Yes | 106 (26.1) | 5 (4.7) | 0.48 (0.18–1.28) | 0.141 |
 No | 299 (73.8) | 28 (9.4) | 1 |  |
Place for seeking sexual partners | Â | Â | Â | |
 Non-internet | 177 (43.3) | 10 (5.6) | 0.53 (0.25–1.15) | 0.110 |
 Internet | 228 (55.7) | 23 (10.1) | 1 |  |
Illegal substance use in the past year | Â | Â | Â | |
 Yes | 23 (5.7) | 1 (4.3) | 0.50 (0.07–3.80) | 0.496 |
 No | 381 (93.2) | 32 (8.4) | 1 |  |
HIV Infection | Â | Â | Â | Â |
 Yes | 16 (3.9) | 3 (18.7) | 2.79 (0.75–10.34) | 0.124 |
 No | 393 (96.7) | 30 (7.6) | 1 |  |