Table 1. Characteristics of study population and STI positivity within groups.
| All participants (N = 250) | STI positive (N = 48) | STI negative (N = 202) | ||
|---|---|---|---|---|
| % of total (N) | % within groups (N) | % within groups (N) | P (χ2-test) | |
| Sociodemographic characteristics | ||||
| Age in yearsa | 0.007 | |||
| 16–28 | 27.6 (69) | 17.4 (12) | 82.6 (57) | |
| 29–43 | 36.8 (92) | 10.9 (10) | 89.1 (82) | |
| 44–71 | 35.6 (89) | 29.2 (26) | 70.8 (63) | |
| Educational levelb | 0.963 | |||
| Lower educated | 33.0 (76) | 19.7 (15) | 80.3 (61) | |
| Higher educated | 67.0 (154) | 19.5 (30) | 80.5 (124) | |
| SESa,c | 0.507 | |||
| Low | 30.8 (77) | 22.1 (17) | 77.9 (60) | |
| Medium | 33.8 (79) | 15.2 (12) | 84.8 (67) | |
| High | 31.2 (78) | 16.7 (13) | 83.3 (65) | |
| Urbanizationc | 0.854 | |||
| Non-urban | 45.6 (114) | 18.4 (21) | 81.6 (93) | |
| Urban | 48.0 (120) | 17.5 (21) | 82.5 (99) | |
| Ethnicityb | 0.740 | |||
| Western | 92.8 (232) | 19.0 (44) | 81.0 (188) | |
| Non-western | 7.2 (18) | 22.2 (4) | 77.8 (14) | |
| Sexual identity | 0.636 | |||
| Homosexual | 87.6 (219) | 19.6 (43) | 80.4 (176) | |
| Bisexual | 12.4 (31) | 16.1 (5) | 83.9 (26) | |
| Sexual history | ||||
| Commercial sex work | 0.576d | |||
| Yes | 1.6 (4) | 25.0 (1) | 75.0 (3) | |
| No | 98.4 (246) | 19.1 (47) | 80.9 (199) | |
| HIV statuse | 0.011 | |||
| Aware positive | 19.6 (49) | 32.7 (16) | 67.3 (33) | |
| Negative or unknown | 80.4 (201) | 15.9 (32) | 84.1 (169) | |
| Previous STI diagnosis | 0.123 | |||
| Yes | 24.8 (62) | 18.4 (21) | 81.6 (41) | |
| No | 45.6 (114) | 27.4 (17) | 72.6 (97) | |
| Unknown | 29.6 (74) | 13.5 (10) | 86.5 (64) | |
| Notified for STI | 0.262 | |||
| Yes | 16.8 (42) | 26.2 (11) | 73.8 (31) | |
| No | 83.2 (208) | 18.0 (37) | 82.0 (166) | |
| Number of sex partners <6 monthsa | 0.014 | |||
| 1–3 | 32.4 (81) | 11.1 (9) | 88.9 (72) | |
| 4.7 | 30.8 (77) | 16.9 (13) | 83.1 (64) | |
| ≥7 | 36.8 (92) | 28.3 (26) | 71.7 (66) |
Row percentages are presented.
a Based on tertile distributions.
b Educational level and ethnicity were based on the definitions used by the Statistics Netherlands (www.cbs.nl).
Western: person who was born in Europe (excluding Turkey), North-America, Oceania, Indonesia or Japan.
Non-Western: person who was born or of whom at least parent was born in Africa, Latin America, Asia (excluding Indonesia or Japan) or Turkey.
c Postal codes were used to calculate socioeconomic status (SES) (www.//scp.nl) and urbanization (www.cbs.nl). Urbanization was categorized into urban (≥1500 addresses/m2) and non-urban (<1500 addresses/m2). Data of 16 MSM were missing as postal code was not recorded.
d Fisher-exact test
e HIV status included prior HIV diagnoses only and excluded newly diagnosed HIV diagnoses.