Baseline characteristics of nPEP users (N=878)
| Variable | Frequency—n (%) |
| Median age—years (IQR) | 34±8 |
| Male gender—n (%) | 856 (97.5) |
| Nationality—n (%) | |
| Spanish | 594 (67.6) |
| European (excluding Spain) | 80 (9.1) |
| Latin American | 173 (19.7) |
| Other | 31 (3.5) |
| Sexual orientation—n (%) | |
| Men who have sex with men (MSM) | 694 (79) |
| Heterosexual | 54 (6.2) |
| Bisexual | 17 (2) |
| Not specified | 113 (12.8) |
| Types of sexual relationships—n (%) | |
| Insertive anal | 244 (33.8) |
| Receptive anal | 376 (52.1) |
| Both | 51 (7.1) |
| Oral | 25 (3.5) |
| Insertive vaginal | 15 (1.7) |
| Receptive vaginal | 10 (1.1) |
| Not specified | 157 |
| Number of previous post-exposure prophylaxis (nPEP) uses—n (%) (N=878) | |
| None | 639 (72.8) |
| 1 | 130 (14.8) |
| 2 | 47 (5.4) |
| ≥3 | 62 (7) |