Publications by authors named "Benjamin W Tsoi"
Background: HIV preexposure prophylaxis (PrEP) has proven to be efficacious and effective in preventing HIV infections, but few studies have reported its impact in the real world.
Methods: We conducted an ecological analysis and compared the trends in HIV PrEP prescriptions with the trends in age-adjusted HIV diagnosis rates in New York City (NYC). Joinpoint regression analyses were used to identify any temporal trends in HIV diagnosis rates in NYC.
Background: HIV self-tests increase HIV status awareness by providing convenience and privacy, although cost and access may limit use. Since 2015, the New York City (NYC) Health Department has conducted 5 waves of an online Home Test Giveaway.
Methods: We recruited adult cisgender men who have sex with men (MSM) and transgender and gender-nonconforming (TGNC) individuals who had sex with men, who were living in NYC, not previously HIV diagnosed, and using paid digital advertisements (4-8 weeks per wave).
Background: Early diagnosis of HIV is important for the prevention of ongoing transmission and development of HIV-related illness. The purpose of this study is to develop an outcome indicator to monitor the progress in early HIV diagnosis.
Methods: Persons diagnosed with HIV in New York City and their first CD4 test results were used to estimate the distribution of HIV diagnosis delay, based on a CD4 count depletion model.
Background: In the United States, routine HIV testing is recommended for persons aged 13-64 years. In 2010, New York State passed a law mandating offer of testing in most health-care settings. We report on the consumer perspective in New York City (NYC) shortly after the law's enactment.
View Article and Find Full Text PDFIntroduction: In 2010, the New York State Legislature made it mandatory to offer an HIV test to people aged 13-64 years receiving hospital or primary care services, with limited exceptions. In this study, we used data from New York City practices to evaluate the impact of the law on HIV testing rates in ambulatory care.
Methods: We collected quarterly testing data from the electronic health records of 218 practices.
Assessing the impact of a community-wide HIV testing scale-up initiative in a major urban epidemic.
J Acquir Immune Defic Syndr
September 2012
Background: The Bronx, one of 5 boroughs in New York City (NYC), bears a high burden of HIV. We evaluated the impact of HIV testing initiatives in the Bronx, including the 2008 The Bronx Knows campaign.
Methods: We used data from an annual telephone survey representative of NYC adults to compare 2005 and 2009 estimates of HIV testing prevalence among Bronx residents and to identify correlates of testing.
Most positive HIV western blot tests do not diagnose new cases in New York City: implications for HIV testing programs.
J Acquir Immune Defic Syndr
August 2009
Objective: To evaluate HIV testing efforts based on surveillance data.
Methods: We determined the contribution of new diagnoses to all positive confidential HIV-1 Western blotting conducted in New York City between 2004 and 2006 based on clinical history recorded in the HIV Surveillance Registry, by testing site type.
Results: Of 31,504 positive Western blots reported and linked to Registry cases, 36.
Objective: In its 2006 HIV testing guidelines, the Centers for Disease Control and Prevention (CDC) recommended routine testing in all US medical settings. Given that many physicians do not routinely test for HIV, the objective of this study was to summarize our current understanding of why US physicians do not offer HIV testing.
Design: A comprehensive review of the published and unpublished literature on HIV testing barriers was conducted.