Table III.
The Proportion of MSM Initiating PrEP Diagnosed with STIs before and after PrEP Initiation, PHSKC STD Clinic (N=183)
| 12 Months Prior to PrEP Initiation |
At PrEP Initiation (+/− 30 Days) |
During PrEP Usea | ||||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | |
| Number of STIs per Patient | 0.52 | 0.84 | 0.72 | 0.82 | 1.11 | 1.62 |
| N | % | N | % | N | % | |
| Any STI | 64 | 35.0 | 95 | 51.9 | 90 | 49.2 |
| Chlamydia | 28 | 15.3 | 36 | 19.7 | 62 | 33.9 |
| Gonorrhea | 41 | 22.4 | 67 | 36.6 | 58 | 31.7 |
| Syphilis (1°, 2°, Early Latent) | 16 | 8.7 | 21 | 11.5 | 17 | 9.3 |
| Syphilis (1°, 2°) | 13 | 7.1 | 15 | 8.2 | 8 | 4.4 |
| Anatomic Site | ||||||
| Pharyngeal Gonorrhea | 13 | 7.1 | 33 | 18.0 | 34 | 18.6 |
| Rectal Gonorrhea | 27 | 14.8 | 51 | 27.9 | 32 | 17.5 |
| Urethral Gonorrhea | 15 | 8.2 | 12 | 6.6 | 17 | 9.3 |
| Pharyngeal Chlamydia | 5 | 2.7 | 3 | 1.6 | 8 | 4.4 |
| Rectal Chlamydia | 21 | 11.5 | 29 | 15.8 | 53 | 29.0 |
| Urethral Chlamydia | 11 | 6.0 | 6 | 3.3 | 15 | 8.2 |
a
Mean time on PrEP = 13 Months