Table 2.
Positivity rates and determinants for Chlamydia trachomatis repeat infections, CRI study Rotterdam 2012
| |
|
|
|
Univariate logistic regression |
Multivariate (n = 72) |
|
|||
|---|---|---|---|---|---|---|---|---|---|
| N Tested | n pos | % pos | OR | 95% CI | p | OR | 95% CI | p | |
|
Type of test offered (n = 75) |
|
|
|
|
|
|
|
|
|
| Test-kit by post |
50 |
8 |
16.0 |
0.8 |
(0.2-2.6) |
0.67 |
|
|
|
| Invitation to STI clinic |
25 |
5 |
20.0 |
1 |
|
|
|
|
|
|
Gender (n = 75) |
|
|
|
|
|
|
|
|
|
| Male |
10 |
1 |
10.0 |
1 |
|
|
|
|
ns |
| Female |
65 |
12 |
18.5 |
2.0 |
(0.2-17.7) |
0.52 |
|
|
|
|
Age (n = 75) |
|
|
|
|
|
|
|
|
|
| 15-19 years |
15 |
4 |
26.7 |
2.1 |
(0.4-11.0) |
0.40 |
|
|
|
| 20-24 years |
40 |
6 |
15.0 |
1.0 |
(0.2-4.5) |
1.0 |
|
|
|
| 25 years and above |
20 |
3 |
15.0 |
1 |
|
|
|
|
|
|
Ethnicity (n = 75) |
|
|
|
|
|
|
|
|
|
| Dutch |
38 |
3 |
7.9 |
1 |
|
|
|
|
ns |
| Non-Dutch |
37 |
10 |
27.0 |
4.3 |
(10.8-17.3) |
0.04 |
|
|
|
|
Educational level (n = 75) |
|
|
|
|
|
|
|
|
|
| Low |
16 |
3 |
18.8 |
5.3 |
(0.5-56.4) |
0.17 |
|
|
ns |
| Medium |
35 |
9 |
25.7 |
8.0 |
(0.9-67.7) |
0.06 |
|
|
|
| High |
24 |
1 |
4.2 |
1 |
|
|
|
|
|
|
Age at first sex (n = 75) |
|
|
|
|
|
|
|
|
|
| < 16 years |
37 |
5 |
13.5 |
0.9 |
(0.1-5.1) |
0.87 |
|
|
|
| 16-17 years |
25 |
6 |
24.0 |
1.7 |
(0.3-10.1) |
0.54 |
|
|
|
| 18 years and above |
13 |
2 |
15.4 |
1 |
|
|
|
|
|
|
CT infection previously to infection at T0 (n = 75) | |||||||||
| Yes |
26 |
3 |
11.5 |
0.5 |
(0.1-2.0) |
0.34 |
|
|
|
| No |
49 |
10 |
20.4 |
1 |
|
|
|
|
|
|
Complaints reported at T1 (n = 72)* | |||||||||
| Complaints yes |
29 |
9 |
31.0 |
6.0 |
(1.5-24.6) |
0.01 |
1.61 |
(1.6-51.2) |
0.01 |
| Complaints no |
43 |
3 |
7.0 |
1 |
|
|
1 |
|
|
|
No of partners in past 6 months at T1 (n = 72)* |
|
||||||||
| 0 partners |
3 |
0 |
0.0 |
0 |
(0.0-0.0) |
0.99 |
|
|
ns |
| 1 partner |
32 |
3 |
9.4 |
1 |
|
|
|
|
|
| 2 partners |
19 |
4 |
21.1 |
2.6 |
(0.5-13.0) |
0.25 |
|
|
|
| 3 or more partners |
18 |
5 |
27.8 |
3.7 |
(0.8-17.9) |
0.10 |
|
|
|
|
Ethnicity sex partner T1 (n = 54) | |||||||||
| Concordant (NL/NL) |
20 |
3 |
15.0 |
1 |
|
|
|
|
|
| Discordant (NL/non-NL) |
14 |
2 |
14.3 |
0.9 |
(0.1-6.5) |
0.95 |
|
|
|
| Concordant (non-NL/non-NL) |
20 |
6 |
30.0 |
2.4 |
(0.5-11.5) |
0.26 |
|
|
|
|
Sex with previous - untreated - partner; T1 (n = 72)* | |||||||||
| No |
26 |
2 |
7.7 |
1 |
|
|
|
|
ns |
| Yes |
23 |
4 |
17.4 |
2.5 |
(0.4-15.3) |
0.31 |
|
|
|
| Not relevant, no sex with previous partner |
23 |
6 |
26.1 |
4.2 |
(0.8-23.6) |
0.10 |
|
|
|
|
New sex partner since treatment T1 (n = 72)* | |||||||||
| Yes |
38 |
9 |
23.7 |
3.2 |
(0.8-13.0) |
0.10 |
|
|
ns |
| No |
34 |
3 |
8.8 |
1 |
|
|
|
|
|
|
Sexual Risk (n = 70)* |
|
|
|
|
|
|
|
|
|
| No old or new partners |
31 |
1 |
3.2 |
1 |
|
|
|
|
ns |
| Risk through old partners only |
16 |
2 |
12.5 |
4.3 |
(0.4-15.3) |
0.25 |
|
|
|
| Risk through new partners only |
16 |
5 |
31.3 |
13.6 |
(1.5-130.1) |
0.02 |
|
|
|
| Risk through new as well as old partners | 7 | 2 | 28.6 | 12.0 | (0.9-158.4) | 0.06 | |||
* Denominators of parameters are less than 75, due to the fact that not all respondents answered these questions.