title: Prevalence and characteristics of rectal chlamydia and gonorrhea cases among men who have sex with men after the introduction of nucleic acid amplification test screening at 2 Canadian sexually transmitted infection clinics.
abstract: We sought to determine the prevalence of rectal chlamydia and gonorrhea after the introduction of nucleic acid amplification tests for screening in men reporting receptive anal intercourse. The rectal chlamydia prevalence was 14.1% (95% confidence interval, 11.9-16.3), and the gonorrhea prevalence was 5.9% (95% confidence interval, 4.4-7.3). Most cases were positive only from the rectum.
authors.affiliation: From the *STI Centralized Services, Alberta Health Services (AHS), Edmonton, Canada; †STI Clinic, AHS, Edmonton, Canada, ‡STI Clinic, AHS, Calgary, Canada; §University of British Columbia, Vancouver, Canada; and ¶Provincial Laboratory for Public Health, AHS, Calgary, Canada.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Gratrix
authors.forename: Ameeta E
authors.initials: AE
authors.lastname: Singh
authors.forename: Joshua
authors.initials: J
authors.lastname: Bergman
authors.forename: Cari
authors.initials: C
authors.lastname: Egan
authors.forename: Justin
authors.initials: J
authors.lastname: McGinnis
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Drews
authors.forename: Ron
authors.initials: R
authors.lastname: Read
mesh_terms: D000328:Adult; D002170:Canada; D002690:Chlamydia Infections / Q000175:diagnosis* / Q000517:prevention & control; D002692:Chlamydia trachomatis / Q000235:genetics / Q000302:isolation & purification*; D006069:Gonorrhea / Q000175:diagnosis* / Q000517:prevention & control; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D009344:Neisseria gonorrhoeae / Q000235:genetics / Q000302:isolation & purification*; D021141:Nucleic Acid Amplification Techniques; D017410:Practice Guidelines as Topic; D015995:Prevalence; D012002:Rectal Diseases / Q000175:diagnosis* / Q000517:prevention & control; D012007:Rectum / Q000382:microbiology*; D012725:Sexual Behavior