Takaaki Kobayashi1,2,3, Puja Van Epps4,5, Marissa M Maier6,7, Lauren A Beste8,9, Brice F Beck10,11, Bruce Alexander10,11, Michael E Ohl12,10,11. 1. Department of Internal Medicine, University of Iowa, 200 Hawkins Drive, SW34 GH, Iowa City, IA, USA. Takaaki-kobayashi@uiowa.edu. 2. Center for Access & Delivery Research and Evaluation, Iowa City VA Health Care System, Iowa City, IA, USA. Takaaki-kobayashi@uiowa.edu. 3. VA Office of Rural Health, Veterans Rural Health Resource Center-Iowa City, Iowa City, IA, USA. Takaaki-kobayashi@uiowa.edu. 4. VA North East Ohio Healthcare System, Cleveland, OH, USA. 5. Division of Infectious Diseases, Department of Internal Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, USA. 6. VA Portland Health Care System, Portland, OR, USA. 7. Division of Infectious Diseases, Department of Internal Medicine, Oregon Health and Science University, Portland, OR, USA. 8. General Medicine Service, VA Puget Sound Health Care System, Seattle, WA, USA. 9. Division of General Internal Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA. 10. Center for Access & Delivery Research and Evaluation, Iowa City VA Health Care System, Iowa City, IA, USA. 11. VA Office of Rural Health, Veterans Rural Health Resource Center-Iowa City, Iowa City, IA, USA. 12. Department of Internal Medicine, University of Iowa, 200 Hawkins Drive, SW34 GH, Iowa City, IA, USA.
Abstract
BACKGROUND: Healthcare encounters for the diagnosis and treatment of sexually transmitted infections (STIs) are common and represent an opportunity to discuss and initiate HIV pre-exposure prophylaxis (PrEP). Little is known about how frequently PrEP is discussed and initiated in association with encounters for STIs. DESIGN: Retrospective cohort and nested case-control study, matched by STI date, in national Veterans Health Administration (VHA) facilities from January 2013 to December 2018. PARTICIPANTS: Veterans with a first STI diagnosis (i.e., early syphilis, gonorrhea, or chlamydia) based on ICD codes, excluding those with prior HIV diagnosis, prior PrEP use, or STI diagnosed on screening during a visit to initiate PrEP. MAIN MEASURES: Frequency of PrEP initiation within 90 days of healthcare encounter for STIs. In the case-control study, we performed a structured chart review from the initial STI-related clinical encounter and quantified frequency of PrEP discussions among matched patients who did and did not initiate PrEP in the following 90 days. KEY RESULTS: We identified 23,312 patients with a first STI, of whom 90 (0.4%) started PrEP within 90 days. PrEP initiation was associated with urban residence (OR = 5.0, 95% CI 1.8-13.5), White compared to Black race (OR = 1.7, 95% CI 1.0-2.7), and syphilis diagnosis (OR = 5.7, 95% CI 3.7-8.6). Chart review revealed that discussion of PrEP was rare among people with STIs who did not subsequently start PrEP (1.1%, 95% CI 0.1-4.0). PrEP initiation was associated with documentation of sexual history (80.0% of initiators vs. 51.0% of non-initiators, p < 0.01) and discussion of PrEP (52.2% vs. 1.1%, p < 0.01) during the initial STI diagnosis encounter. CONCLUSIONS: Discussion and initiation of PrEP were rare following healthcare encounters for STIs. Interventions are needed to improve low rates of sexual history-taking and discussion of PrEP during healthcare encounters for STIs.
BACKGROUND: Healthcare encounters for the diagnosis and treatment of sexually transmitted infections (STIs) are common and represent an opportunity to discuss and initiate HIV pre-exposure prophylaxis (PrEP). Little is known about how frequently PrEP is discussed and initiated in association with encounters for STIs. DESIGN: Retrospective cohort and nested case-control study, matched by STI date, in national Veterans Health Administration (VHA) facilities from January 2013 to December 2018. PARTICIPANTS: Veterans with a first STI diagnosis (i.e., early syphilis, gonorrhea, or chlamydia) based on ICD codes, excluding those with prior HIV diagnosis, prior PrEP use, or STI diagnosed on screening during a visit to initiate PrEP. MAIN MEASURES: Frequency of PrEP initiation within 90 days of healthcare encounter for STIs. In the case-control study, we performed a structured chart review from the initial STI-related clinical encounter and quantified frequency of PrEP discussions among matched patients who did and did not initiate PrEP in the following 90 days. KEY RESULTS: We identified 23,312 patients with a first STI, of whom 90 (0.4%) started PrEP within 90 days. PrEP initiation was associated with urban residence (OR = 5.0, 95% CI 1.8-13.5), White compared to Black race (OR = 1.7, 95% CI 1.0-2.7), and syphilis diagnosis (OR = 5.7, 95% CI 3.7-8.6). Chart review revealed that discussion of PrEP was rare among people with STIs who did not subsequently start PrEP (1.1%, 95% CI 0.1-4.0). PrEP initiation was associated with documentation of sexual history (80.0% of initiators vs. 51.0% of non-initiators, p < 0.01) and discussion of PrEP (52.2% vs. 1.1%, p < 0.01) during the initial STI diagnosis encounter. CONCLUSIONS: Discussion and initiation of PrEP were rare following healthcare encounters for STIs. Interventions are needed to improve low rates of sexual history-taking and discussion of PrEP during healthcare encounters for STIs.
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