Marissa M Maier1, Ina Gylys-Colwell2, Elliott Lowy2, Joleen Borgerding2, Puja Van Epps3, Michael Ohl4, Ronald G Hauser5,6, Maggie Chartier7, Lauren Beste8. 1. OHSU Division of Infectious Diseases, VA Portland Healthcare System, Portland, Oregon, USA. 2. Health Services Research & Development, VA Puget Sound Healthcare System, Seattle, Washington, USA. 3. Department of Medicine, Case Western Reserve University School of Medicine, Veterans Affairs Northeast Ohio Healthcare System, Cleveland, Ohio, USA. 4. Center for Access and Delivery Research and Evaluation (CADRE), Department of Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA. 5. Pathology and Laboratory Medicine Department, Veterans Affairs Connecticut Healthcare, New Haven, Connecticut, USA. 6. Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut, USA. 7. HIV, Hepatitis and Related Conditions Programs, Office of Specialty Care Services, Veterans Health Administration, Washington, DC, USA. 8. Division of General Internal Medicine, Department of Medicine, University of Washington School of Medicine, VA Puget Sound Health Care System, Seattle, Washington, USA.
Abstract
BACKGROUND: To measure the incidence of syphilis diagnoses among people with HIV vs those without HIV in a national multiyear retrospective cohort. METHODS: Treponemal and nontreponemal tests, HIV status, and demographic data were identified among all individuals receiving Veterans Health Administration (VHA) care between January 1, 2009, and December 31, 2019. Syphilis testing rates and incident syphilis diagnoses as defined by a laboratory algorithm were stratified by HIV status. RESULTS: Syphilis was diagnosed in 1.2% (n = 2283) of 194 322 tested individuals in VHA care in 2019. Among individuals with HIV tested for syphilis, 6.1% met criteria for syphilis compared with 0.7% without HIV. Syphilis incidence in 2019 was 35/100 000, a 17% increase from 2009 (30/100 000). In 2019, syphilis incidence was 3381 per 100 000 persons among individuals with HIV and 19 per 100 000 in those without HIV. CONCLUSIONS: Using a laboratory-based diagnostic algorithm, a 178-fold difference in syphilis incidence was observed between individuals with and without HIV in 2019. US syphilis incidence data that incorporate HIV status are needed. Interventions to monitor and prevent sexually transmitted infections should address the role of HIV status. Published by Oxford University Press on behalf of Infectious Diseases Society of America 2021.
BACKGROUND: To measure the incidence of syphilis diagnoses among people with HIV vs those without HIV in a national multiyear retrospective cohort. METHODS: Treponemal and nontreponemal tests, HIV status, and demographic data were identified among all individuals receiving Veterans Health Administration (VHA) care between January 1, 2009, and December 31, 2019. Syphilis testing rates and incident syphilis diagnoses as defined by a laboratory algorithm were stratified by HIV status. RESULTS: Syphilis was diagnosed in 1.2% (n = 2283) of 194 322 tested individuals in VHA care in 2019. Among individuals with HIV tested for syphilis, 6.1% met criteria for syphilis compared with 0.7% without HIV. Syphilis incidence in 2019 was 35/100 000, a 17% increase from 2009 (30/100 000). In 2019, syphilis incidence was 3381 per 100 000 persons among individuals with HIV and 19 per 100 000 in those without HIV. CONCLUSIONS: Using a laboratory-based diagnostic algorithm, a 178-fold difference in syphilis incidence was observed between individuals with and without HIV in 2019. US syphilis incidence data that incorporate HIV status are needed. Interventions to monitor and prevent sexually transmitted infections should address the role of HIV status. Published by Oxford University Press on behalf of Infectious Diseases Society of America 2021.
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