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P3.154 Anatomic Site Distribution of Sexually Transmitted Diseases in Men Who Have Sex with Men and High Risk Females by Routine Testing, Including Anorectal and Oropharyngeal Testing
  1. G A F S van Liere1,2,
  2. C J P A Hoebe1,2,
  3. N H T M Dukers-Muijrers1,2
  1. 1Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Geleen, The Netherlands
  2. 2Department of Medical Microbiology, Maastricht University Medical Center, Maastricht, The Netherlands

Abstract

Introduction Insight in the anatomic site distribution of sexually transmitted diseases (STDs) is important because it is assumed that present anorectal/oropharyngeal STD are coincidentally treated with urogenital STD. However, it is not clear whether this anorectal STD control strategy is effective. Furthermore, there is ongoing debate on the appropriate treatment for extragenital STD and whether this may differ from genital STD. We evaluated the anatomic site distribution of STDs by routine testing in high risk females (hereafter females) and men who have sex with men (MSM).

Methods From January 2010 to November 2012, all females and MSM were routinely tested for anorectal, oropharyngeal and urogenital Chlamydia trachomatis (Ct) and Neisseria gonorrhoeae (Ng). Data were collected on demographics and sexual behaviour.

Results The study population comprised 4829 consults. Overall Ct positivity was 6.8% (131/1937) in females and 10.0% (289/2892) in MSM, for Ng this was 4.3% (n = 83) and 6.7% (n = 193) respectively. The proportion isolated anorectal Ct was 16.8% (n = 22) in females and 63.0% (n = 182) in MSM, for Ng this was 10.8% (n = 9) and 44.0% (n = 85) respectively. Combined urogenital and anorectal Ct was 45.0% (n = 59) in females and 13.5% (n = 39) in MSM, for Ng this was 19.3% (n = 16) and 11.4% (n = 22) respectively. Isolated oropharyngeal Ct was 9.9% (n = 13) in females and 5.9% (n = 17) in MSM, for Ng this was 53.0% (n = 44) and 31.6% (n = 61) respectively. Isolated urogenital Ct was 28.2% (n = 37) in females and 17.6% (n = 51) in MSM, for Ng this was 16.9% (n = 14) and 13.0% (n = 25) respectively.

Discussion Anorectal and oropharyngeal STD were often isolated and thereby not coincidentally treated with urogenital STD. Therefore urogenital testing only is insufficient. Furthermore, these isolated infections remain undiagnosed if routine anorectal/oropharyngeal testing is lacking. Combined anorectal/urogenital Ct/Ng were also highly prevalent, highlighting the importance of an effective treatment for simultaneous genital and extragenital Ct/Ng.

  • anorectal
  • oropharyngeal
  • risk groups

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