|
Serosorting
| | | | |
0.412
| | |
|
Yes
|
157
|
(37.7)
|
90
|
(39.0)
| |
247
|
(38.2)
|
|
No
|
237
|
(57.0)
|
134
|
(58.0)
| |
371
|
(57.3)
|
|
No answer
|
22
|
(5.3)
|
7
|
(3.0)
| |
29
|
(4.5)
|
|
Age
| | | | |
0.200
| | |
|
< 25 yr.
|
82
|
(19.7)
|
49
|
(21.2)
| |
131
|
(20.2)
|
|
25–49 yr.
|
282
|
(67.8)
|
150
|
(64.9)
| |
432
|
(66.8)
|
|
≥ 50 yr.
|
46
|
(11.1)
|
32
|
(13.9)
| |
78
|
(12.1)
|
|
No answer
|
6
|
(1.4)
|
0
|
-
| |
6
|
(0.9)
|
|
Survey mode
| | | | |
0.100
| | |
|
Paper
|
149
|
(35.8)
|
68
|
(29.4)
| |
217
|
(33.5)
|
|
Internet
|
267
|
(64.2)
|
163
|
(70.6)
| |
430
|
(66.5)
|
|
University degree
| | | | |
0.574
| | |
|
Yes
|
185
|
(44.5)
|
110
|
(47.6)
| |
295
|
(45.6)
|
|
No
|
230
|
(55.3)
|
121
|
(52.4)
| |
351
|
(54.3)
|
|
No answer
|
1
|
(0.3)
|
0
|
-
| |
1
|
(0.2)
|
|
Nationality
| | | | |
0.001
| | |
|
Swiss national
|
336
|
(80.8)
|
166
|
(71.9)
| |
502
|
(77.6)
|
|
Non Swiss national
|
69
|
(16.6)
|
64
|
(27.7)
| |
133
|
(20.6)
|
|
No answer
|
11
|
(2.6)
|
1
|
(0.4)
| |
12
|
(1.9)
|
|
Residence area > 100,000 inhabitants
| | | | |
0.297
| | |
|
Yes
|
174
|
(41.8)
|
86
|
(37.2)
| |
260
|
(40.2)
|
|
No
|
241
|
(57.9)
|
143
|
(61.9)
| |
384
|
(59.4)
|
|
No answer
|
1
|
(0.2)
|
2
|
(0.9)
| |
3
|
(0.5)
|
|
Gay organization
| | | | |
0.602
| | |
|
Yes
|
60
|
(14.4)
|
38
|
(16.5)
| |
98
|
(15.1)
|
|
No
|
355
|
(85.3)
|
193
|
(83.6)
| |
548
|
(84.7)
|
|
No answer
|
1
|
(0.2)
|
0
|
-
| |
1
|
(0.2)
|
|
Steady partner
a
| | | | |
0.038
| | |
|
Yes
|
172
|
(41.4)
|
116
|
(50.2)
| |
288
|
(44.5)
|
|
No
|
240
|
(57.7)
|
115
|
(49.8)
| |
355
|
(54.9)
|
|
No answer
|
4
|
(1.0)
|
0
|
-
| |
4
|
(0.6)
|
|
Number of sexual partners with AI
a
| | | | |
0.219
| | |
|
None
|
9
|
(2.2)
|
2
|
(0.9)
| |
11
|
(1.7)
|
|
1–5 partners
|
200
|
(48.1)
|
102
|
(44.2)
| |
302
|
(46.7)
|
|
≥ 6 partners
|
207
|
(49.8)
|
126
|
(54.6)
| |
333
|
(51.5)
|
|
No answer
|
0
|
-
|
1
|
(0.4)
| |
1
|
(0.2)
|
|
Regularly frequenting sex-on-premises venues
a
| | | | |
0.659
| | |
|
Yes
|
82
|
(19.7)
|
47
|
(20.4)
| |
129
|
(19.9)
|
|
No
|
322
|
(77.4)
|
180
|
(77.9)
| |
502
|
(77.6)
|
|
No answer
|
12
|
(2.9)
|
4
|
(1.7)
| |
16
|
(2.5)
|
|
Frequent use of the internet for sexual encounters
a
| | | | |
0.558
| | |
|
Yes
|
178
|
(42.8)
|
109
|
(47.2)
| |
287
|
(44.4)
|
|
No
|
232
|
(55.8)
|
119
|
(51.5)
| |
351
|
(54.3)
|
|
No answer
|
6
|
(1.4)
|
3
|
(1.3)
| |
9
|
(1.4)
|
|
Sexually transmitted infections
a
| | | | |
0.003
| | |
|
Yes
|
72
|
(17.3)
|
56
|
(24.2)
| |
128
|
(19.8)
|
|
No
|
330
|
(79.3)
|
175
|
(75.8)
| |
505
|
(78.1)
|
|
No answer
|
14
|
(3.4)
|
0
|
-
| |
14
|
(2.2)
|
|
UAI with partners of different or unknown HIV status
a
| | | | |
0.510
| | |
|
Yes
|
295
|
(70.9)
|
155
|
(67.1)
| |
450
|
(69.6)
|
|
No
|
118
|
(28.4)
|
75
|
(32.5)
| |
193
|
(29.8)
|
|
No answer
|
3
|
(0.7)
|
1
|
(0.4)
| |
4
|
(0.6)
|
|
HIV test
a
| | | | |
0.087
| | |
|
Yes
|
177
|
(42.6)
|
106
|
(45.9)
| |
283
|
(43.7)
|
|
No
|
231
|
(55.5)
|
125
|
(54.1)
| |
356
|
(55.0)
|
|
No answer
|
8
|
(1.9)
|
0
|
-
| |
8
|
(1.2)
|
|
HIV status declared
| | | | |
0.021
| | |
|
Unknown
|
94
|
(22.6)
|
62
|
(26.8)
| |
156
|
(24.1)
|
|
HIV negative
|
256
|
(61.5)
|
117
|
(50.7)
| |
373
|
(57.7)
|
|
HIV positive/Aids
|
66
|
(15.9)
|
52
|
(22.5)
| |
118
|
(18.2)
|
|
Frequent substance use while having sex
a
| | | | |
0.054
| | |
|
Yes
|
119
|
(28.6)
|
83
|
(35.9)
| |
202
|
(31.2)
|
|
No
|
297
|
(71.4)
|
148
|
(64.1)
| |
445
|
(68.8)
|
