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 | |||