P3.42 Incident trichomonas vaginalis is associated with partnership concurrency: a longitudinal cohort study. (8th July 2017) - Kenyon, C
Abstract : Introduction: Sexual partner concurrency has been shown to be a risk factor for a number of sexually transmitted infections but it is unknown if it is a risk factor for Trichomonas vaginalis (TV). Study design: We used mixed effects logistic regression to assess the association between partner concurrency and incident TV in the Longitudinal Study of Vaginal Flora, a cohort study of 3620 women followed quarterly for five visits. Results: TV was more common in those reporting definite/possible/unknown PC (15.6%/15.0%/18.3%) than those reporting no PC (5.2% - P <0.001 for all three comparisons). After controlling for a range of confounders, incident TV remained associated with reporting that one's partner definitely (adjusted Odds ratio [aOR] 5.4; 95% Confidence Interval [CI], 3.7–8.0) and possibly (aOR 3.4; 95% CI, 2.2–5.1) engaged in partner concurrency in the preceding time period. Conclusion: Partner concurrency was associated with incident TV infection. We hypothesise that this association may be partly explained by concurrent partnering bypassing a ' rapid-clearance-in-males-bottleneck .'