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Clinical Science
P2.05 A silent epidemic: the prevalence, incidence and persistence of mycoplasma genitalium in young asymptomatic women in the united states
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  1. Arlene C Seña1,
  2. Jeanette Y Lee2,
  3. Jane Schwebke3,
  4. Susan S Philip4,
  5. Harold C Weisenfeld5,
  6. Anne M Rompalo6,
  7. Robert l Cook7,
  8. Marcia M Hobbs1
  1. 1Department of Medicine, University of North Carolina at Chapel Hill, USA
  2. 2Department of Biostatistics, University of Arkansas for Medical Sciences, USA
  3. 3Department of Medicine, University of Alabama at Birmingham, USA
  4. 4San Francisco Department of Public Health, USA
  5. 5Department of Obstetrics and Gynaecology, Magee-Women’s Hospital of University of Pittsburgh, USA
  6. 6Department of Medicine, Johns Hopkins University School of Medicine, USA
  7. 7Departments of Epidemiology and Medicine, University of Florida, USA

Abstract

Introduction: Mycoplasma genitalium (MG) is an emerging sexually transmitted infection (STI) associated with cervicitis, pelvic inflammatory disease, and adverse pregnancy outcomes in women, yet little is known regarding its natural history. We conducted a secondary analysis of specimens collected from young women enrolled in a multi-centre study of asymptomatic bacterial vaginosis (BV) in order to determine the natural history of MG and associated factors with infection.

Methods Sexually active women aged 15–25 years were recruited from 10 US clinical sites. Eligible women had asymptomatic BV at baseline, and >/=2 STI risk factors. Self-collected vaginal swabs were collected at enrollment, and by home-based testing at 2, 4, 6, 8, 10 and 12 months. MG nucleic acid amplification testing was performed using a transcription mediated assay (Hologic Inc, San Diego, California). Prevalent, incident and persistent MG were estimated with 95% confidence intervals (CI). Univariate analyses and logistic regression modelling were performed to assess associations between participants’ baseline demographic, sexual, and clinical characteristics with prevalent MG infection.

Results Specimens were tested for MG from 1365 predominantly Black (85.4%) women. At baseline, 233 women were MG+ (prevalence 20.5% [95% CI: 18.2–22.9]); among 204 participants with follow-up specimens, 42 (20.6%) had persistent MG, remaining MG+ on all follow-up testing. Among 801 women who were MG negative at baseline with follow-up testing, 220 had at least one subsequent MG+ test for an incidence of 27.5% (95% CI: 24.4–30.7). Black race (adjusted odds ratio (AOR) 1.92, 95% CI: 1.09–3.38) and younger (15–21 years) age (AOR 1.40, 95% CI: 1.03–1.91) were significantly associated with prevalent MG infection.

Conclusions We identified high rates of prevalent, incident, and persistent MG infections among sexually active young women followed over 12 months. As national programs consider the impact of MG as an STI, the implications of asymptomatic infections should be considered among at-risk populations.

https://doi.org/10.1136/sextrans-2017-053264.182

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