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Characteristics
15-24 yrs (n = 16,603; STI positivity =18.6%)
≥ 25 yrs (n = 82,502; STI positivity =17.7%)
N (%)
STI positivity (%)
N (%)
STI positivity (%)
Age, years
15-19
3023 (18.2)
16.4
20-24
13580 (81.8)
19.1
25-34
28550 (34.6)
19.5
35-44
26932 (32.6)
18.3
45-54
17871 (21.7)
16.5
≥55
9149 (11.1)
12.9
Sexual behaviour
Sex with both men and women
2700 (16.3)
16.4
16391 (19.9)
12.9
Sex with men only
13903 (83.7)
19.0
66111 (80.1)
18.9
Ethnicity
Dutch
12657 (76.2)
17.0
64657 (78.4)
17.0
Surinam/Antilles
854 (5.1)
28.3
2351 (2.9)
23.5
Turkey/Morocco
373 (2.3)
19.6
1291 (1.6)
20.4
Eastern Europe
486 (2.9)
27.6
1425 (1.7)
21.7
Sub-Sahara Africa
167 (1.0)
23.4
449 (0.5)
24.3
Latin America
359 (2.2)
29.8
1871 (2.3)
22.0
Asia
551 (3.3)
18.5
2633 (3.2)
22.1
Other
1156 (7.0)
20.9
7825 (9.5)
18.2
Previous HIV test
No
6123 (36.9)
16.5
12785 (15.5)
18.8
Yes
10043 (60.5)
20.0
67622 (82.0)
17.6
Unknown
437 (2.6)
13.7
2095 (2.5)
16.2
Previous STI
No
12618 (76.0)
17.4
60215 (73.0)
16.1
Yes
1915 (11.5)
28.8
12150 (14.7)
24.9
Unknown
2070 (12.5)
16.2
10137 (12.3)
18.6
CSW
No
15822 (95.3)
18.3
80153 (97.2)
17.8
Yes, in past 6 months
592 (3.6)
29.7
1386 (1.7)
16.9
Unknown
189 (1.1)
7.4
962 (1.2)
10.3
Client of CSW
No
16281 (98.1)
18.7
79640 (96.5)
18.0
Yes, in past 6 months
149 (0.9)
18.8
1988 (2.4)
9.5
Unknown
173 (1.0)
8.7
874 (1.1)
12.0
Nr of partners in < 6 months
0-1
2884 (17.4)
13.6
8342 (10.1)
12.9
2-10
9581 (57.7)
18.9
40959 (49.7)
17.1
>10
992 (6.0)
31.1
10751 (13.0)
20.4
Unknown
3146 (18.9)
19.0
22450 (27.2)
19.4
STI symptoms
No
11134 (67.1)
14.9
50728 (61.5)
13.6
Yes
3076 (18.5)
34.0
17607 (21.3)
28.7
Unknown
2393 (14.4)
16.1
14167 (17.2)
19.0
Notified
No
12239 (73.7)
16.2
58147 (70.5)
15.5
Yes
1992 (12.0)
36.0
9764 (11.8)
29.0
Unknown
2372 (14.3)
16.3
14591 (17.7)
19.4
STI positivity
Chlamydia
1627 (9.9)
-
7292 (8.9)
-
Gonorrhoea
1465 (9.0)
-
6078 (7.5)
-
Infectious syphilis
272 (1.7)
-
1867 (2.3)
-
HIV
246 (1.5)
-
1778 (2.4)
-
