Table 2.
Proportion of positive STI result by specimen source and STI type.
| Baseline | 3-month | 6-month | 9-month | 12-month | |
|---|---|---|---|---|---|
| n=62% | n=42% | n=40% | n=40% | n=41% | |
| Neisseria gonorrhoeae | 9.7 | 9.5 | 2.6* | 10.0 | 0 |
| Anal only | 6.5 | 9.5 | 2.6* | 10.0 | 0 |
| Urine only | 3.2 | 0 | 0* | 0 | 0 |
| Both anal & urine | 0 | 0 | 0* | 0 | 0 |
| Chlamydia trachomatis | 17.7 | 7.1 | 7.5 | 5.0 | 9.8 |
| Anal only | 9.7 | 7.1 | 7.5 | 2.5 | 7.3 |
| Urine only | 6.5 | 0 | 0 | 0 | 2.4 |
| Both anal & urine | 1.6 | 0 | 0 | 0 | 0 |
| Trichomonas vaginalis | 14.5 | 14.3 | 10.0 | 10.0 | 9.8 |
| Anal only | 4.8 | 14.3 | 7.5 | 5.0 | 4.9 |
| Urine only | 9.7 | 0 | 0 | 0 | 2.4 |
| Both anal & urine | 0 | 0 | 2.5 | 2.5 | 2.4 |
| Any STI | 35.5 | 23.8 | 15.0 | 20.0 | 17.1 |
| Anal only | 14.5 | 23.8 | 7.5 | 15.0 | 12.2 |
| Urine only | 16.1 | 0 | 0 | 0 | 2.4 |
| Both anal & urine | 1.6 | 0 | 2.5 | 2.5 | 2.4 |
*
n=39