Table 1.
Baseline characteristics
| Participants (n=50) | |
|---|---|
| Sex | |
| Male | 50 (100%) |
| Age, years | |
| Median (IQR) | 34 (29–40) |
| Anti-smallpox vaccination | |
| Vaccinated | 6 (12%) |
| Unvaccinated | 44 (88%) |
| Suspected transmission route, n (%) | |
| Sex with men | 49 (98%) |
| Sex with women | 1 (2%) |
| HIV co-infection | |
| Yes | 22 (44%) |
| No | 28 (56%) |
| Pre-exposure prophylaxis (in HIV-negative patients) | |
| Yes | 22 (44%) |
| No | 6 (12%) |
| Number of sex partners in the previous 3 weeks | |
| Median (IQR) | 5 (2–10) |
| Chemsex use in the previous 3 weeks | |
| Yes | 15 (30%) |
| No | 35 (70%) |
| Attendance at a sex-on-site event in the previous 3 weeks | |
| Yes | 23 (46%) |
| No | 27 (54%) |
| Medical setting at first admission | |
| Infectious diseases department | 15 (30%) |
| Emergency department | 9 (18%) |
| General practitioner | 14 (28%) |
| Sexual health clinic | 4 (8%) |
| Other hospital | 8 (16%) |
Data are n (%), unless otherwise specified.