Demographic of 1610 men who have sex with men included in the analysis
| Characteristics | Overall (n=1610) | HIV positive (n=303) | HIV negative (n=1307) | P value | |||
| n | % | n | % | n | % | ||
| Median age (IQR) years | 24.1 (20.8–30.0) | 24.1 (21.0–28.7) | 24.1 (20.8–30.5) | 0.48 | |||
| Site | <0.001 | ||||||
| Bangkok | 676 | 42.0 | 164 | 54.1 | 512 | 39.2 | |
| Chiang Mai | 541 | 33.6 | 61 | 20.1 | 480 | 36.7 | |
| Hat Yai | 152 | 9.4 | 17 | 5.6 | 135 | 10.3 | |
| Pattaya city | 241 | 15.0 | 61 | 20.1 | 180 | 13.8 | |
| Marital status | 0.19 | ||||||
| Single | 1158/1598 | 72.5 | 218/301 | 72.4 | 940/1297 | 72.5 | |
| Living together with male partner | 381/1598 | 23.8 | 77/301 | 25.6 | 304/1297 | 23.4 | |
| Married to a woman | 59/1598 | 3.7 | 6/301 | 2.0 | 53/1297 | 4.1 | |
| Highest education | 0.46 | ||||||
| Lower than high school | 325/1594 | 20.4 | 68/299 | 22.7 | 257/1295 | 19.9 | |
| High school | 638/1594 | 40.0 | 120/299 | 40.1 | 518/1295 | 40.0 | |
| Higher than high school | 631/1594 | 39.6 | 111/299 | 27.1 | 520/1295 | 40.2 | |
| Main occupation | 0.06 | ||||||
| Unemployed | 97/1598 | 6.1 | 25/300 | 8.3 | 72/1298 | 5.6 | |
| Student | 486/1598 | 30.4 | 76/300 | 25.3 | 410/1298 | 31.6 | |
| Sex worker | 707/1598 | 44.2 | 133/300 | 44.3 | 574/1298 | 44.2 | |
| Employed, other than sex worker | 308/1598 | 19.3 | 66/300 | 22.0 | 242/1298 | 18.6 | |
| Income>10 000 THB (US$320) per month | 672/1383 | 48.6 | 124/264 | 47.0 | 548/1119 | 49.0 | 0.56 |
| Median age (IQR) of first sexual intercourse | 17 (15–19) | 17 (15–19) | 17 (15–19) | 0.22 | |||
| Male circumcision | 186/1391 | 13.4 | 25/240 | 10.4 | 161/1151 | 14.0 | 0.14 |
| Number of sexual partners in the past 6 months | 0.34 | ||||||
| No sexual partner | 30/1603 | 1.9 | 7/300 | 2.3 | 23/1303 | 1.8 | |
| Single partner | 308/1603 | 19.2 | 59/300 | 19.7 | 249/1303 | 19.1 | |
| Multiple partners | 870/1603 | 54.3 | 150/300 | 50.0 | 720/1303 | 55.3 | |
| Refuse to answer | 395/1603 | 24.6 | 84/300 | 28.0 | 311/1303 | 23.9 | |
| Unprotected sex in the past 6 months | 1261/1586 | 79.5 | 252/298 | 84.6 | 1009/1288 | 78.3 | 0.02 |
| Illicit drug used in the past 6 months | 599/1530 | 39.2 | 100/278 | 36.0 | 499/1252 | 39.9 | 0.23 |
| Self-reported STIs in the past 6 months | <0.001 | ||||||
| No | 977/1546 | 63.2 | 146/291 | 50.2 | 831/1255 | 66.2 | |
| Yes | 106/1546 | 6.9 | 21/291 | 7.2 | 85/1255 | 6.8 | |
| Not sure | 463/1546 | 29.9 | 124/291 | 42.6 | 339/1255 | 27.0 | |
| Group sex in the past 6 months | 207/1520 | 13.6 | 47/286 | 16.4 | 160/1234 | 13.0 | 0.12 |
| Overall CT infections | 349 | 21.7 | 111 | 36.6 | 238 | 18.2 | <0.001 |
| Pharyngeal CT | 48 | 3.0 | 17 | 5.6 | 31 | 2.4 | 0.003 |
| Rectal CT | 242 | 15.0 | 88 | 29.0 | 154 | 11.8 | <0.001 |
| Urethral CT | 112 | 7.0 | 29 | 9.6 | 83 | 6.4 | 0.04 |
| Overall NG infections | 249 | 15.5 | 91 | 30.0 | 158 | 12.1 | <0.001 |
| Pharyngeal NG | 110 | 6.8 | 25 | 8.3 | 85 | 6.5 | 0.28 |
| Rectal NG | 150 | 9.3 | 68 | 22.4 | 82 | 6.3 | <0.001 |
| Urethral NG | 56 | 3.5 | 22 | 7.3 | 34 | 2.6 | <0.001 |
CT, Chlamydia trachomatis; NG, Neisseria gonorrhoeae; STIs, sexually transmitted infections; THB, Thai baht.