Background: Early diagnosis of sexually transmitted infections (STI) such as Chlamydia trachomatis (CT) and Neisseria gonorrhoea (NG) is crucial in reducing complications. Vaginal bleeding (VB) has been suggested as a possible presentation of STI.
Objective: To identify the rate of STI in sexually active women presenting to the emergency department (ED) with VB.
Methods: Prospective observational study of females 18-55 years-old presenting to two affiliated urban EDs with VB (convenience sample). Patients with recent STI or antibiotic use (< 3 months) were excluded. To estimate the background rate of STI, we enrolled women with no genitourinary complaints as controls. Specimens for CT and NG were obtained during speculum exam from cases and by self administered vaginal swab in controls. All specimens were analyzed by polymerase chain reaction. Continuous data was presented as mean +/- standard deviation and categorical data as percentages with 95% confidence intervals CI). Fisher's exact test was used to compare the rate of STI between the groups.
Results: From 09.06 to 08.07 a total 273 subjects were enrolled (174 VB and 99 controls, mean age: 33 +/- 10). Groups were similar with regards to baseline characteristics. The majority of STI cases were due to CT: 5.8% in VB group (95% CI, 3.2%-10.4%) vs. 7.1% in controls (95% CI, 3.5%-14.0%). The STI rate was 6.3% (95% CI, 3.5%-11.1%) in VB patients and 8% (95% CI, 3.9%-15.3%) in controls.
Conclusions: Our ED patients with and without vaginal bleeding had comparable rate of STI.
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