Behaviour | CT prevalence* % (95% CI) | Bases UWT, WT | OR | (p value) 95% CI | Adjusted† OR | (p value) 95% CI |
---|---|---|---|---|---|---|
*Prevalence of genital C trachomatis infection. †Adjusted for 5+ lifetime heterosexual partners, age (18–19, 20–24 years), and sex. ‡First heterosexual intercourse. §Had at least one heterosexual partner with whom condoms were not used on 100% occasions of heterosexual vaginal and/or anal intercourse. CI = confidence interval; UWT = unweighted count; WT = weighted count; OR = odds ratio. | ||||||
Early FHI‡ (before age 16) | ||||||
No | 3.6 (2.1 to 6.2) | 436, 263 | 1 | (0.28) | 1 | (0.69) |
Yes | 6.4 (2.7 to 14.4) | 81, 50 | 1.8 | 0.6 to 5.3 | 1.3 | 0.4 to 4.0 |
1+ heterosexual partner without 100% condom use, past year§ | ||||||
No | 2.7 (0.7 to 10.1) | 77, 48 | 1 | (0.27) | 1 | (0.43) |
Yes | 5.9 (3.7 to 9.5) | 321, 193 | 2.3 | 0.5 to 10.5 | 1.9 | 0.4 to 10.1 |
Concurrency past year | ||||||
No | 3.8 (2.3 to 6.3) | 467, 282 | 1 | (0.28) | 1 | (0.84) |
Yes | 7.5 (2.4 to 21.3) | 40, 25 | 2.0 | 0.6 to 7.5 | 1.2 | 0.3 to 5.1 |
5+ lifetime heterosexual partners | ||||||
No | 2.8 (1.5 to 5.0) | 374, 225 | 1 | (0.01) | 1 | (0.01) |
Yes | 7.8 (4.2 to 13.9) | 137, 84 | 3.0 | 1.3 to 7.0 | 3.0 | 1.3 to 6.9 |