Associations between participant characteristics and any STI, the Sino-Implant Study, Kingston, Jamaica
| Prevalence ratio* | 95% CI | |
|---|---|---|
| Positive prostate-specific antigen test | 1.04 | 0.89 to 1.21 |
| Self-reported unprotected sex in the past two days | 1.16 | 0.99 to 1.36 |
| Age (per increase of 1 year) | 0.98 | 0.97 to 0.99 |
| Parity (per increase of 1) | 0.97 | 0.91 to 1.05 |
| Single, never married | 1.20 | 0.99 to 1.46 |
| Did not complete high school | 1.10 | 0.93 to 1.30 |
| Four or more alcoholic drinks in 1 day in the past week | 1.14 | 0.77 to 1.69 |
| Ever received money or gifts in exchange for sex | 0.96 | 0.68 to 1.36 |
| Hormonal contraception in the past month | 1.18 | 0.99 to 1.40 |
| More than one partner in the past month | 1.05 | 0.80 to 1.37 |
*Adjusted for study arm.