|
Variable
| |
N with STI/ total N (STI prevalence)
|
Univariable
|
Multivariable 1 (N = 957)
|
Multivariable 2 (N = 957)
|
|---|
| | |
OR (95% CI)
|
p
|
OR
|
p
|
OR
|
p
|
|---|
|
Age group
|
16–19
|
61/419 (14.6)
|
1
|
0.042
|
1
|
0.95
| | |
|
20–25
|
114/584 (19.5)
|
1.42 (1.01, 2.00)
|
1.01 (0.68, 1.51)
| |
|
Sex
|
Male
|
23/214 (10.8)
|
1
|
0.004
|
1
|
0.001
|
1
|
0.001
|
|
Female
|
152/789 (19.3)
|
1.98 (1.24, 3.16)
|
2.77 (1.54, 4.98)
|
2.64 (1.52, 4.57)
|
|
Relationship status
|
Single
|
21/177 (11.9)
|
0.65 (0.39, 1.10)
|
0.005
|
1.48 (0.72, 3.04)
|
0.02
|
1.23 (0.67–2.27)
|
0.007
|
|
Boyfriend/girlfriend
|
70/368 (19.0)
|
1.14 (0.80, 1.64)
|
1.82 (1.05, 3.12)
|
1.70 (1.09–2.63)
|
|
Married
|
74/434 (17.1)
|
1
|
1
|
1
|
|
Divorced/widowed
|
10/24 (41.7)
|
3.47 (1.49, 8.12)
|
4.10 (1.50, 11.25)
|
3.71 (1.51–9.06)
|
|
New partner in the last 3 months
|
Yes
|
35/157 (22.3)
|
1.45 (0.95, 2.20)
|
0.083
|
0.69 (0.36, 1.30)
|
0.25
| | |
|
No
|
129/846 (16.6)
|
1
|
1
| |
|
No of sexual partners in last 3 months
|
0
|
31/293 (10.6)
|
1
|
< 0.001
|
1
|
0.16
| | |
|
1
|
119/623 (19.1)
|
2.00 (1.31, 3.04)
|
1.07 (0.54, 2.12)
| |
|
2+
|
25/87 (28.7)
|
3.41 (1.88, 6.18)
|
2.09 (0.83, 5.25)
| | |
|
No of lifetime partners
|
0
|
11/186 (5.9)
|
1
| |
1
|
0.004
|
1
| |
|
1
|
54/388 (13.9)
|
2.57 (1.31, 5.04)
|
< 0.001
|
2.19 (0.85, 5.64)
|
2.09 (0.98, 4.44)
|
< 0.001
|
|
2 +
|
110/429 (25.6)
|
5.49 (2.87, 10.47)
|
3.89 (1.47, 10.29)
|
3.98 (1.93, 8.19)
|
|
History of STI treatment
|
Yes
|
22/79 (27.9)
|
1.94 (1.15, 3.28)
|
0.012
|
0.75 (0.40, 1.40)
|
0.36
| | |
|
No
|
153/924 (16.6)
|
1
|
1
| |
|
Partner ever had an STI
|
Yes
|
17/43 (39.5)
|
3.32 (1.76,6.26)
|
< 0.001
|
1.90 (0.88, 4.07)
|
0.10
| | |
|
No
|
158/960 (16.5)
|
1
|
1
| |
|
HIV status (N = 957)
|
Positive
|
18/50 (36.0)
|
2.79 (1.53, 5.11)
|
< 0.001
|
2.05 (1.05, 4.01)
|
0.04
|
1.95 (1.02, 3.72)
|
0.04
|
|
Negative
|
152/907 (16.8)
|
1
|
1
|
1
|
|
Use of condoms (N = 817)
|
Always
|
15/116 (12.9)
|
0.70 (0.38, 1.28)
|
0.004
|
0.65 (0.32, 1.35)
|
0.12
| | |
|
Sometimes
|
82/319 (25.7)
|
1.63 (1.13, 2.34)
|
1.27 (0.81, 1.99)
| |
|
Never
|
67/382 (17.5)
|
1
|
1
| |
|
Perceived STI risk
|
None/low
|
93/721 (12.9)
|
1
|
< 0.001
|
1
|
0.01
|
1
|
< 0.001
|
|
Medium/high
|
82/282 (29.1)
|
2.77 (1.98, 3.88)
|
1.67 (1.12, 2.49)
|
1.98 (1.37, 2.87)
|
|
Use of hormonal contraception (N = 789)
|
Yes
|
87/451 (19.3)
|
1.00 (0.70, 1.44)
|
0.98
| | | | |
|
No
|
65/338 (19.2)
|
1
| | |
|
Past or current pregnancy (N = 789)
|
Yes
|
13/36 (36.1)
|
2.50 (1.23, 5.05)
|
0.011
|
2.70 (1.27, 5.78)
|
0.01
|
2.55 (1.21, 5.39)
|
0.014
|
|
No
|
139/753 (18.5)
|
1
|
1
|
1
|
- Multivariable Model 1: includes all potential risk factors and Multivariable Model 2: includes potential risk factors that were associated with STI infection in Model 1 ( female gender, relationship status, number of lifetime sexual partners, HIV status, perceived STI risk and past/current pregnancy)
