ArticleCanada communicable disease report = Releve des maladies transmissibles au Canada2020
Extragenital testing increases case detection of gonorrhea and chlamydia: The impact of implementing nucleic acid amplification testing.
Article in Canada communicable disease report = Releve des maladies transmissibles au Canada, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
11 citing papers in PubMed, 19 citations in OpenAlex.
- Should we still treat asymptomaticSexually transmitted infections · 2026Article
- Risk of cancer among individuals with a history of bacterial sexually transmitted infections: A population-based study in Alberta, Canada.International journal of cancer · 2026Article
- New Trends in Sexually Transmitted Infections Among Adolescents and Young People: Epidemiology, Clinical and Diagnostic Management.Microorganisms · 2025Review
- Self-Reported PrEP Use and Risk of Bacterial STIs Among Ontarian Men Who Are Gay or Bisexual or Have Sex With Men.Annals of family medicine · 2024Article
- Article
- Concurrent Sexually Transmitted Infection Testing Among Patients Tested for Mpox at a Tertiary Healthcare System.Open forum infectious diseases · 2023Article
- Controversies and evidence on Chlamydia testing and treatment in asymptomatic women and men who have sex with men: a narrative review.BMC infectious diseases · 2022Review
- Direct fluorescence antibody testing augments syphilis diagnosis, compared to serology alone.International journal of STD & AIDS · 2022Article
- Pre-Exposure Prophylaxis Among Gay, Bisexual, and Other Men Who Have Sex With Men in Ottawa: A Real World View With Benefits Beyond HIV Risk Reduction.International journal of sexual health : official journal of the World Association for Sexual Health · 2022Article
- Automated STI/HIV risk assessments: Testing an online clinical algorithm in Ottawa, Canada.International journal of STD & AIDS · 2021Article
- Approach to sexually transmitted infection testing for men who have sex with men.Canadian family physician Medecin de famille canadienReview
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundNucleic acid amplification testing (NAAT) was validated in Ontario in 2018 to test for chlamydia and gonorrhea at extragenital (pharyngeal, rectal) sites. Prior to this validation, extragenital testing could be done only by culture in Ontario. The objective of this study was to determine the number and proportion of gonorrhea and chlamydia cases that were detected exclusively through extragenital (pharyngeal and/or rectal) testing after the implementation of extragenital NAAT for these two infections at Sexual Health Clinic among gay, bisexual, and other men who have sex with men (gbMSM).
methodsCase and laboratory data from before and after NAAT implementation were used to compare the rates of diagnosis of gonorrhea and chlamydia among gbMSM who presented at Sexual Health Clinics and the percent increase in diagnoses in gbMSM in the entire population.
resultsAmong gbMSM seen at the clinic after implementation of NAAT testing, 70% of gonorrhea cases and 65% of chlamydia cases were detected exclusively at extragenital sites, corresponding to a four and two-fold increase, respectively, in the average annual number of cases diagnosed. As well, although approximately 50% more pharyngeal than rectal testing occurred, a higher proportion of chlamydia cases were detected rectally than would have been expected; this was not the case for gonorrhea, where most infections were pharyngeal.
conclusionIt is important that clinicians perform extragenital testing among gbMSM who have sexual contact involving extragenital sites with more than one partner.
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