Methodology: 3/5

Chinnock B, et al. Acad Emerg Med. 2021 Jun;28(6):612-620. doi: 10.1111/acem.14213. 

Question and Methods:  This prospective observational cohort trial sought to assess if self-obtained vaginal swabs were not inferior to provider-performed endocervical swab in the ED diagnosis of chlamydia (CT) and gonorrhea (NG) using a rapid NAAT.
Findings:  SOVS was not inferior and had a 95% (CI =88-99%) for detection of NG/CT when compared to PPES.
Qualitative SOVS (Self obtained) felt acceptable in 93% of pts and 75% preferred SOVS to PPES (provider obtained)
Limitations: Single center study. Prospective cohort study with a convenient sample. This test is not performed at TOH.

Interpretation: This study alone does not provide conclusive evidence that SOVS are non-inferior to PPES and cannot be used to change management locally. May consider the use of SOVS if you have access to rapid NAAT and you are only concerned about ruling out NG/CT

By: Dr. Nathaniel Murray



  • Nathaniel Murray

    Nathaniel is an RCPSC resident in Emergency Medicine at the University of Ottawa.

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  • Jeff Perry

    Dr. Perry is an Emergency Physician and full Professor in the department of Epidemiology and Community Medicine. He has a special research interest in subarachnoid hemorrhage, TIA and stroke.

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  • Hans Rosenberg

    Dr. Rosenberg is an emergency physician at the Ottawa Hospital, associate professor at the University of Ottawa, and Director of the Digital Scholarship and Knowledge Dissemination Program.

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