Cross sectional analysis: associations between participant characteristics and sexually transmitted diseases (N=2021)
| Baseline STD‡ | ||||||||
|---|---|---|---|---|---|---|---|---|
| Gonorrhoea (n=404) | Chlamydia (n=312) | Syphilis (n=28) | ||||||
| Total | Without STD* (n=834) | OR | p Value | OR | p Value | OR | p Value | |
| *People with each STD were compared with the group with no STD. | ||||||||
| †Numbers in partners column do not total 2021 because of missing values. | ||||||||
| Circumcised | ||||||||
| Yes | 1518 | 622 | 1.0 | — | 1.0 | — | 1.0 | — |
| No | 503 | 212 | 1.1 | 0.50 | 0.9 | 0.41 | 1.6 | 0.22 |
| Site | ||||||||
| Baltimore | 377 | 101 | 8.7 | <0.001 | 2.5 | <0.001 | 1.2 | 0.80 |
| Denver | 393 | 155 | 4.3 | <0.001 | 1.0 | 0.90 | 0.8 | 0.76 |
| Long Beach | 332 | 132 | 3.3 | <0.001 | 0.9 | 0.62 | 0.3 | 0.16 |
| Newark | 476 | 195 | 1.5 | 0.01 | 1.0 | 0.87 | 0.4 | 0.23 |
| San Francisco | 443 | 251 | 1.0 | — | 1.0 | — | 1.0 | — |
| Race/ethnicity | ||||||||
| White | 364 | 204 | 1.0 | — | 1.0 | — | 1.0 | — |
| African-American | 1259 | 424 | 15.5 | <0.001 | 3.4 | <0.001 | 12.0 | 0.02 |
| Hispanic | 300 | 152 | 3.3 | 0.001 | 2.0 | 0.005 | 2.7 | 0.42 |
| Other | 98 | 54 | 3.8 | 0.003 | 2.1 | 0.03 | — | — |
| Age | ||||||||
| <20 | 276 | 87 | 2.3 | <0.001 | 6.8 | <0.001 | — | — |
| 20–24 | 584 | 210 | 1.8 | <0.001 | 4.7 | <0.001 | 0.4 | 0.09 |
| 25–29 | 413 | 171 | 1.1 | 0.72 | 2.6 | <0.001 | 0.7 | 0.45 |
| 30–34 | 326 | 154 | 1.1 | 0.76 | 2.0 | 0.02 | 0.9 | 0.79 |
| ≥35 | 422 | 212 | 1.0 | — | 1.0 | — | 1.0 | — |
| No of sex partners past 3 months† | ||||||||
| 1 | 898 | 419 | 1.0 | — | 1.0 | — | 1.0 | — |
| 2 | 584 | 226 | 1.9 | <0.001 | 1.2 | 0.19 | 0.7 | 0.54 |
| ≥3 | 535 | 186 | 2.2 | <0.001 | 1.7 | 0.001 | 1.1 | 0.91 |
| New partner at baseline† | ||||||||
| Yes | 1040 | 408 | 1.4 | 0.001 | 1.1 | 0.47 | 0.8 | 0.51 |
| No | 970 | 421 | 1.0 | — | 1.0 | — | 1.0 | — |