Table 2.
Exposure and Outcome Frequencies and Prevalence, and Incidence of First STI by Incarceration During the Study Period, 2007–2017, Women's Interagency HIV Study
| Overall (N = 3,124 women) | Incarcerated (N = 212 women) | Not incarcerated (N = 2,912 women) | |
|---|---|---|---|
| Total self-reports of at least one STIa | 213 | 27 | 186 |
| Self-reported gonorrhea | 19 | 3 | 16 |
| Self-reported chlamydia | 37 | 6 | 31 |
| Self-reported trichomonas | 164 | 18 | 146 |
| At-risk years | 10,661 | 727 | 9,935 |
| First self-reported STI prevalenceb | 6.9 | 12.7 | 6.4 |
| Self-reported gonorrhea prevalence | 0.6 | 1.4 | 0.6 |
| Self-reported chlamydia prevalence | 1.2 | 2.8 | 1.1 |
| Self-reported trichomonas prevalence | 5.3 | 8.5 | 5.1 |
| First STI incidence rateb | 2.0 | 3.7 | 1.9 |
| First incarceration eventsc | 212 | 212 | 0 |
| Censoredd | 654 | 45 | 609 |
STIs include the first self-report during the study period of one or more of gonorrhea, chlamydia, and trichomonas.
Period prevalence per 100 participants who were active at any point during the study period and crude incidence per 100 person-years was calculated using data from the 3,096 women with nonmissing self-reported STI data who reported one or more STIs during the study period.
There were a total of 298 incarceration events among the 212 women who experienced incarceration during the study period.
Women who missed at least two consecutive visits during the study period.
STIs, sexually transmitted infections.