Table 3. Incidences of rectal, pharyngeal, and urinary Chlamydia trachomatis and Neisseria gonorrhoeae among HIV-negative men who have sex with men in Japan.
| New incidental case (n) | Incidence rate/ 100 person-year | |
|---|---|---|
| HIV* | 10 | 3.8 |
| Rectal CT and/or NG* | 55 | 21.1 |
| Rectal CT | 45 | 17.2 |
| Rectal NG | 10 | 3.8 |
| Pharyngeal CT and/or NG** | 13 | 13.0 |
| Pharyngeal CT | 2 | 2.0 |
| Pharyngeal NG | 11 | 11.0 |
| Urinary CT and/or NG* | 6 | 2.3 |
| Urinary CT | 1 | 0.38 |
| Urinary NG | 5 | 1.91 |
CT, Chlamydia trachomatis; NG, Neisseria gonorrhoeae.
*Mean observation period = 290.5 days (328 MSM, 261.1 person-years)
**Mean observation period = 202.3 days (182 MSM, 99.8 person-years)