Baseline characteristics of men who have sex with men aged 14–89 years, who tested at STI clinics in the Netherlands between 1 June 2014 and 31 December 2015
| Baseline characteristics | N (%) |
|---|---|
| Total | 18 634 |
| Age (years) | |
| 14–26 | 4801 (25.8) |
| 27–35 | 4383 (23.5) |
| 36–47 | 4905 (26.3) |
| 48+ | 4545 (24.4) |
| Sexual orientation | |
| Homosexual | 15 136 (81.2) |
| Bisexual | 3498 (18.8) |
| Region of STI clinic | |
| Limburg | 1178 (6.3) |
| Noord-Holland/Flevoland | 7988 (42.9) |
| Noord-Nederland | 755 (4.0) |
| Oost-Nederland | 2993 (16.1) |
| Utrecht | 893 (4.8) |
| Zeeland/Brabant | 2048 (11.0) |
| Zuid-Holland Noord | 809 (4.3) |
| Zuid-Holland Zuid | 1970 (10.6) |
| Follow-up time | |
| ≤365 days | 6565 (35.2) |
| >365 days | 12 069 (64.8) |
| Socioeconomic status | |
| High | 6505 (34.9) |
| Medium | 5150 (27.6) |
| Low | 5446 (29.2) |
| Missing values | 1533 (8.2) |
| Education level | |
| High | 8422 (45.2) |
| Low | 4476 (24.0) |
| Missing values | 5736 (30.8) |
| Ethnicity | |
| Dutch | 13 384 (71.8) |
| Western non-Dutch | 1614 (8.7) |
| Non-Western | 3616 (19.4) |
| Missing values | 20 (0.1) |
| Number of sex partners in the past six months | |
| 0–2 | 4257 (22.8) |
| 3–4 | 4472 (24.0) |
| 5–9 | 4426 (23.8) |
| 10+ | 4951 (26.6) |
| Missing values | 528 (2.8) |
| Condom use at last contact | |
| No | 10 562 (56.7) |
| Yes | 7156 (38.4) |
| Missing values | 916 (4.9) |
| Received partner notification | |
| No | 14 442 (77.5) |
| Yes | 4114 (22.1) |
| Missing values | 78 (0.4) |
| Reported STI symptoms | |
| No | 13 732 (73.7) |
| Yes | 4801 (25.8) |
| Missing values | 101 (0.5) |
| Known HIV positive | |
| No | 16 260 (87.3) |
| Yes | 2221 (11.9) |
| Missing values | 153 (0.8) |
| GO/CT/SYPH in the past two years | |
| No | 14 067 (75.5) |
| Yes | 3595 (19.3) |
| Missing values | 972 (5.2) |
| Commercial sex worker | |
| No | 18 049 (96.9) |
| Yes | 370 (2.0) |
| Missing values | 215 (1.1) |
| Client of commercial sex worker | |
| No | 17 878 (95.9) |
| Yes | 534 (2.9) |
| Missing values | 222 (1.2) |
| Total N consultations per person | |
| 1 | 9668 (51.9) |
| 2 | 4826 (25.9) |
| 3 | 2462 (13.2) |
| 4 | 979 (5.2) |
| 5 | 387 (2.1) |
| 6 or more* | 312 (1.7) |
*Maximum nine consultations.
CT, chlamydia; GO, gonorrhoea; SYPH, syphilis.