Table. Characteristics of men who have sex with men visiting the Centres of Sexual Health in Rotterdam and Amsterdam, September 2022 (n = 1,065).
| Characteristics | Rotterdam (n = 315) |
Amsterdam (n = 750) |
||
|---|---|---|---|---|
| n | % | n | % | |
| Age (years) | ||||
| < 20 | 3 | 1.0 | 12 | 1.6 |
| 20–29 | 101 | 32.1 | 286 | 38.1 |
| 30–39 | 112 | 35.6 | 258 | 34.4 |
| 40–49 | 56 | 17.8 | 102 | 13.6 |
| 50–59 | 28 | 8.9 | 66 | 8.8 |
| 60–69 | 13 | 4.1 | 24 | 3.2 |
| 70–79 | 2 | 0.6 | 2 | 0.3 |
| Vaccination type | ||||
| MVA-BN only | 97 | 30.8 | NA | |
| MVA-BN and historic smallpox vaccinationa | 28 | 8.9 | NA | |
| Historic smallpox vaccinationa | 15 | 4.8 | NA | |
| Unvaccinated | 175 | 55.6 | NA | |
| Reason MVA-BN vaccination offered | ||||
| Not invited | 99 | 31.4 | NA | |
| PrEP use or waitlist | 187 | 59.4 | NA | |
| PLWH | 3 | 1.0 | NA | |
| Recent STI exposure or treatment, or multiple sexual partners | 26 | 8.3 | NA | |
| MVA-BN vaccination (n = 125) | ||||
| 1 dose | 79 | 25.1 | NA | |
| Days since last dose, median (IQR) | 27 (19.0–34.75) | NA | ||
| 2 doses | 46 | 14.6 | NA | |
| Days since last dose, median (IQR) | 9 (7.0–13.5) | NA | ||
| PCR-confirmed infections | ||||
| Infected | 5 | 1.6% | NA | |
IQR: interquartile range; MVA-BN: modified vaccinia Ankara–Bavarian Nordic; NA: not available; PLWH: people living with HIV; PrEP: (HIV) pre-exposure prophylaxis.
a Historic smallpox vaccination was inferred for those born before cessation of childhood smallpox vaccination in the Netherlands in 1974.