Table 3 Odds ratios for C. trachomatis infection in multivariable logistic regression models
Characteristic | Girls | Boys | Both | ||||||
|---|---|---|---|---|---|---|---|---|---|
OR | 95% CI | p 1 | OR | 95% CI | p 1 | OR | 95% CI | p 1 | |
Family and culture | |||||||||
Residence in school year | |||||||||
At home | - | - | 1.00 | 0.013 | |||||
Other2 | - | - | 2.04 | 1.17–3.57 | |||||
Mother’s education | |||||||||
≤High school/don’t know | 1.00 | 0.021 | - | - | |||||
≥College | 2.22 | 1.13–4.37 | - | - | |||||
Sexual behaviour | |||||||||
Condom use first intercourse | |||||||||
No | - | 1.00 | 0.005 | - | |||||
Yes | - | 0.06 | 0.01–0.42 | - | |||||
Sex partners past 6 months | |||||||||
0-1 | 1.00 | <0.001 | - | 1.00 | <0.001 | ||||
≥ 2 | 3.59 | 1.76–7.32 | - | 2.88 | 1.60–5.18 | ||||
Last sexual partner | |||||||||
Age difference | |||||||||
Same age or younger | - | 1.00 | 0.017 | - | |||||
Older (≥1 year) | - | 3.74 | 1.27–11.01 | - | |||||
How met last partner | |||||||||
At school/work | 1.00 | 0.038 | 1.00 | 0.026 | |||||
Through family/friends/other | 1.90 | 0.42–8.65 | - | 1.61 | 0.54–4.82 | ||||
On the Internet | 3.40 | 0.62–18.78 | - | 2.81 | 0.78–0.08 | ||||
At a private party, bar, disco | 4.99 | 1.10–22.69 | - | 3.54 | 1.18–10.61 | ||||
Last sexual intercourse | |||||||||
Condom use | |||||||||
No | - | - | 1.00 | 0.015 | |||||
Yes | - | - | 0.23 | 0.07–0.75 | |||||