Asa Radix

Asa Radix
Callen-Lorde Community Health Center · Department of Medicine

MD, PhD MPH

About

149
Publications
26,746
Reads
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2,456
Citations
Introduction
Asa Radix currently works at the Department of Medicine, Callen-Lorde Community Health Center. Asa does research in International and Humanitarian Medicine, Infectious Diseases and Public Health.
Additional affiliations
January 2014 - present
New York University
Position
  • Research Assistant
March 2006 - present
Callen-Lorde Community Health Center
Position
  • Director of Research and Education
March 2006 - November 2015
Callen-Lorde Community Health Center
Position
  • HIV specialist

Publications

Publications (149)
Article
Transgender and non-binary (TGNB) individuals often experience gender dysphoria. TGNB individuals with gender dysphoria may undergo genital gender-affirming surgery including vaginoplasty, phalloplasty, or metoidioplasty so that their genitourinary anatomy is congruent with their experienced gender. Given decreasing social stigma and increasing cov...
Article
Purpose: Research suggests social support may protect sexual minorities from the harmful effects of victimization that undermine mental and sexual health wellness; however, this relationship has been underexplored among a diverse youth population. We examined the association between lifetime homonegative victimization, perceived stress in the last...
Article
Full-text available
Purpose of review The goal of this review is to assess the use of digital technologies to promote the health and well-being of transgender and gender diverse (TGD) people. Recent findings TGD individuals experience numerous health disparities, including low uptake of HIV prevention strategies, such as pre-exposure prophylaxis, increased HIV incide...
Article
Importance HIV transmission rates in the United States have increased among men who have sex with men. However, there are no published randomized trials examining interventions to reduce sexual risk for HIV acquisition in males younger than 18 years. Objective To determine the efficacy of MyPEEPS Mobile, a mobile-delivered HIV prevention intervent...
Article
Full-text available
Background Transgender and gender diverse (TGD) individuals disproportionately experience disparate health outcomes compared to their cisgender peers. This study aimed to collect qualitative data from a sample of TGD community health center patients on health research priorities to inform future TGD-centered research in the field of TGD health. Me...
Article
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Gender-affirming hormones have been shown to improve psychological functioning and quality of life among transgender and nonbinary (trans) people, yet, scant research exists regarding whether and why individuals take more or less hormones than prescribed. Drawing on survey data from 379 trans people who were prescribed hormones, we utilized multiva...
Article
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Background: Transgender healthcare is a rapidly evolving interdisciplinary field. In the last decade, there has been an unprecedented increase in the number and visibility of transgender and gender diverse (TGD) people seeking support and gender-affirming medical treatment in parallel with a significant rise in the scientific literature in this are...
Article
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This study characterized arrest, incarceration, and risk factors for incident incarceration among transgender women (TW) in the northeastern and southern United States. During semiannual study visits over 24 months in a multicenter cohort study, TW completed HIV testing and self-administered surveys. In total, 1571 TW completed baseline survey; 1,3...
Article
Purpose: This study examined factors associated with past-year health care utilization among young gay, bisexual, and other men who have sex with men (YMSM) using Andersen's behavioral model of health service use. Methods: From 2018 to 2020, 751 YMSM (aged 13-18) recruited online and offline for the MyPEEPS mHealth HIV prevention study completed an...
Chapter
Gender-affirming surgeries are increasingly common in the United States. For many transgender and gender nonbinary (TGNB) patients, gender-affirming surgery is a critical aspect of their overall health and wellness, with a significant impact on mental health and social functioning. Primary care clinicians are in a unique position to guide TGNB pati...
Article
Full-text available
Purpose Adherence to pre-exposure prophylaxis (PrEP) during periods of PrEP-indication (i.e., prevention-effective adherence) is critical for preventing HIV. We sought to describe factors associated with prevention-effective adherence trajectories among transgender women (TW) to inform PrEP implementation strategies. Methods Using data from The LI...
Article
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Purpose: Lesbian, gay, bisexual, transgender, queer, intersex, and/or asexual and other sexual and gender diverse persons (LGBTQIA+ or SGD persons) experience barriers to equitable health care. The purpose of this article is to describe a collaborative process that resulted in core cultural competency recommendations addressing training for those w...
Article
Purpose: Transgender (TG) individuals are a historically understudied and underserved patient population. Although clinical guidelines for the care of TG patients exist, quality measures (QMs) specific to this population are lacking. The goal of this study was to obtain expert input on aspects of care for which quality measurement may be appropriat...
Article
Full-text available
Background: This article is by a group of trans and nonbinary researchers and experts in the field of trans health who have conducted an analysis of trans health research needs. Aims: To highlight topics that need further research and to outline key considerations for those conducting research in our field. Methods: The first author conducted semi-...
Preprint
Full-text available
Background This article is by a group of trans and nonbinary researchers and experts in the field of trans health who have conducted an analysis of trans health research needs. Aims To highlight topics that need further research and to outline key considerations for those conducting research in our field. Methods The first author conducted semi-s...
Article
Purpose: The objective of this study was to determine whether state-level policies that restrict minors' access to confidential HIV testing without parental consent may suppress HIV testing in young men who have sex with men (YMSM) in the United States. Methods: Secondary data from a national HIV prevention trial among YMSM aged 13-17 years (N=...
Article
To alleviate health disparities experienced by sexual and gender minority (SGM) patients, cancer care professionals need further education on the needs of SGM cancer patients and their loved ones and caregivers. The Together-Equitable-Accessible-Meaningful (TEAM) Training to Improve Cancer Care for SGM Patients (TEAM SGM) was developed and piloted...
Article
Background: Transgender women and trans feminine individuals (TGW/TFI) are a high priority population for the provision of HIV pre-exposure prophylaxis (PrEP) care within the United States, but there is limited research that focuses specifically on PrEP adherence within this population. Setting: Observational study of patients prescribed PrEP at...
Article
Our team developed MyPEEPS (Male youth Pursuing Empowerment, Education, and Prevention around Sexuality) Mobile-a health application for young cisgender men who have sex with men to promote health and reduce sexual risk. The current study sought to better understand approaches for adapting MyPEEPS for transmasculine youth. Methods: Transmasculine...
Article
Full-text available
Transgender and gender diverse (TGD), Black, and Latinx communities have long borne a disproportionate share of the U.S. HIV epidemic, yet these same key demographics are continually underrepresented in national PrEP prescriptions. Black, Latinx, and TGD individuals are also more likely to be uninsured, meaning that a proposed federal program to co...
Article
Background Commonly used estimated glomerular filtration rate (eGFR) equations include a Black race modifier (BRM) that was incorporated during equation derivation. Race is a social construct, and a poorly characterized variable that is applied inconsistently in clinical settings. The BRM results in higher eGFR for any creatinine concentration, imp...
Article
Full-text available
Objective The aim of this study was to determine whether homophobic victimization was associated with alcohol consumption and riding with an intoxicated driver or driving a car while under the influence of alcohol or drugs among adolescent men who have sex with men (MSM). Methods Cross-sectional analysis used baseline data from a national HIV prev...
Article
Full-text available
Introduction The purpose of this study is to qualitatively explore transgender and nonbinary (TGNB) individuals’ experiences with bathroom use in neighborhoods and public spaces in the context of navigating experiences of harassment, lack of safety, and discrimination in New York City. Methods Forty diverse TGNB individuals were recruited in the s...
Article
Full-text available
Background The purpose of this formative study was to assess barriers and facilitators to participation of transgender and gender diverse (TGD) patients in clinical research to solicit specific feedback on perceived acceptability and feasibility of research methods to inform creation of a multisite longitudinal cohort of primary care patients engag...
Article
Objective The widespread and frequent use of mobile technology among adolescents, including sexual minority adolescents, presents an opportunity for the development of mobile health (mHealth) technology to combat the continuing HIV epidemic among young men who have sex with men (YMSM). We analyzed perceptions of the quality and impact of an HIV pre...
Article
Full-text available
There is growing evidence that people who are transgender and gender diverse (TGD) are impacted by disparities across a variety of cardiovascular risk factors compared with their peers who are cisgender. Prior literature has characterized disparities in cardiovascular morbidity and mortality as a result of a higher prevalence of health risk behavio...
Article
Purpose: Undercounting of transgender people with HIV (PWH) in New York City (NYC) remains prevalent. We sought to improve our ability to accurately enumerate transgender PWH and address their needs for gender-affirming health care. Methods: We enhance previous algorithms used to identify transgender beneficiaries, using diagnoses, prescriptions...
Article
Full-text available
A geospatial analysis of services that support transgender and gender diverse ("trans") people in New York City (NYC) was conducted to investigate associations with neighborhood-level sociodemographic characteristics. In June 2019, there were 5.3 services for every 100,000 of the general NYC population; controlling for other covariates, they were m...
Article
Primary care providers often express a desire to be more involved with their patients as they transition to hospice care. Given that these providers have a central role in the care of their patients, they have the potential to significantly improve the experiences of lesbian, gay, bisexual, transgender, and queer patients who face serious illnesses...
Article
Introduction: Preexposure prophylaxis (PrEP) is effective in preventing HIV among adherent users. However, PrEP uptake among transgender women is low, and current prescribing guidelines from the Centers for Disease Control and Prevention (CDC) are not specific to transgender women. Self-perceived risk of HIV among those who are PrEP-indicated is n...
Article
Radix and Harris discuss the current state of transgender health and the challenges to equitable medical access experienced by transgender and gender-diverse patients. Transgender medicine has evolved significantly since the first clinical practice guidelines were developed more than 40 years ago, but important research gaps exist.
Article
Background: A rare, but consequential, risk of gender affirming surgery (GAS) is post-operative regret resulting in a request for surgical reversal. Studies on regret and surgical reversal are scarce, and there is no standard terminology regarding either etiology and/or classification of the various forms of regret. This study includes a survey of...
Article
Gay, bisexual and other men who have sex with men (MSM) and transgender individuals face the highest burden of human immunodeficiency virus (HIV) infection. HIV pre-exposure prophylaxis (PrEP) is an effective evidence-based biomedical intervention to reduce acquisition of HIV infection but uptake has been suboptimal in lesbian, gay, bisexual, and t...
Article
Full-text available
Background The HIV epidemic disproportionately impacts transgender women in the United States. Cohort studies identify unique risks for affected populations, but use of facility-based methods may bias findings towards individuals living in research catchment areas, more engaged in health services, or, in the case of transgender populations, those w...
Preprint
BACKGROUND The HIV epidemic disproportionately impacts transgender women in the United States. Cohort studies identify unique risks for affected populations, but use of facility-based methods may bias findings towards individuals living in research catchment areas, more engaged in health services, and/or, in the case of transgender populations, tho...
Article
Background There are specific issues regarding sexual orientation (SO) collection and analysis among transgender and nonbinary patients. A limitation to meaningful SO and gender identity (GI) data collection is their consideration as a fixed trait or demographic data point. Methods A de-identified patient database from a single electronic health re...
Article
Full-text available
Introduction Approximately 1.4 million transgender and gender diverse (TGD) adults in the United States have unique health and health care needs, including anatomy-driven cancer screening. This study explored the general healthcare experiences of TGD people in the Washington, DC area, and cancer screening experiences in particular. Methods Twenty-...
Article
Full-text available
In the United States, transgender women are disproportionately burdened by HIV infection. Research aimed at curbing the HIV epidemic for this population may benefit from innovative technology to engage participants in research. Adult transgender women (n = 41) from six cities in the southern and eastern United States participated in seven online fo...
Chapter
Transgender communities of color face inequities in HIV prevalence, uptake of prevention interventions, and engagement in care and treatment. Intersecting oppression, i.e., racism, cissexism, transphobia, and HIV stigma, increases HIV vulnerability and reduces access to prevention and care services. Healthcare providers can facilitate care engageme...
Article
Electronic consultations (eConsults) have demonstrated benefits in many areas of clinical care including educational value for primary care clinicians (PCCs). It has been shown that few PCCs have knowledge and confidence to manage transgender and gender non-binary (TGNB) patients. In this report, we explored the impact of eConsults submitted to a T...
Article
Full-text available
Background HIV pre-exposure prophylaxis (PrEP) is 99% effective at preventing new HIV infections if taken daily. To be successful, PrEP requires concurrent efforts to optimize uptake, persistence, and adherence. In 2018, cisgender (cis) women accounted for 19% of new HIV infections in the US but comprised only 7% of all PrEP users. Studies show poo...
Article
Transgender individuals face discrimination, violence, social exclusion, and other social, political, and economic factors that result in increased vulnerability to HIV. Rates of viral suppression and uptake of preexposure prophylaxis are lower among transgender individuals than the general population. HIV clinics can help improve these rates by pr...
Preprint
Full-text available
BACKGROUND Transgender and gender diverse (TGD) adults in the U.S. experience health disparities, especially in HIV infection. Medical gender affirmation such as hormone replacement therapy and gender-affirming surgeries is known to be medically necessary and to improve some health conditions. To our knowledge, however, no studies have assessed the...
Article
Background Transgender and gender diverse (TGD) adults in the United States experience health disparities, especially in HIV infection. Medical gender affirmation (eg, hormone therapy and gender-affirming surgeries) is known to be medically necessary and to improve some health conditions. To our knowledge, however, no studies have assessed the effe...
Article
Despite the approval of PrEP for adolescents by the FDA in 2018, little is known about the awareness and attitudes about PrEP use among adolescent sexual minority males, who are at the greatest risk for HIV. We analyzed baseline data from the MyPEEPS Mobile study, a multi-site randomized controlled trial evaluating the effectiveness of a mobile beh...
Preprint
Full-text available
Background: The purpose of this formative study was to assess barriers and facilitators to participation of transgender and gender diverse (TGD) patients in clinical research to solicit specific feedback on perceived acceptability and feasibility of research methods to inform creation of a multisite longitudinal cohort of primary care patients enga...
Preprint
Full-text available
Background: The purpose of this formative study was to assess barriers and facilitators to participation of transgender and gender diverse (TGD) patients in clinical research to solicit specific feedback on perceived acceptability and feasibility of research methods to inform creation of a multisite longitudinal cohort of primary care patients enga...
Article
Full-text available
The epidemic of hepatitis C virus (HCV) infection among HIV-infected men who have sex with men (MSM) is in its second decade, but the routes of transmission remain poorly understood. We hypothesized that by pairing single genome sequencing (SGS), to enumerate infecting HCV genomes (viruses), with detailed sexual and drug histories, we could gain in...
Article
Our study team developed the MyPEEPS Mobile App for improving HIV prevention behaviors in diverse young men. We conducted a randomized controlled trial and evaluated the preliminary outcomes in the first half (N=350) of our intended study sample. Higher self-efficacy for HIV prevention behaviors (p=0.0042) and more recent HIV tests in the past 3 mo...
Article
Trans-specific language has evolved tremendously in the past decade, also reflecting a move away from a binary model for gender identity toward one that acknowledges gender diversity. Many of us who are professionals working in the field of transgender health frequently witness colleagues deviating from recommended best practices for working with t...
Article
Introduction Little is known about sleep health among transgender and gender diverse populations. Even less is known about sleep among transgender women of color, a population that experiences considerable health disparity. Methods Interim baseline data were analyzed from the TURNNT (Trying to Understand Relationships, Networks and Neighborhoods a...
Article
HIV prevalence is elevated among transgender populations with an estimated 13.7% of transgender adults living with HIV in the USA. In addition, transgender people experience significant disparities in biomedical HIV prevention and treatment. The efficacy of topical microbicides for prevention of HIV acquisition have not been tested among transgende...
Article
Full-text available
Introduction In the USA, transgender women are among the most vulnerable to HIV. In particular, transgender women of colour face high rates of infection and low uptake of important HIV prevention tools, including pre-exposure prophylaxis (PrEP). This paper describes the design, sampling methods, data collection and analyses of the TURNNT (‘Trying t...
Article
There are approximately 1 million transgender and gender-diverse adults in the United States. Despite increased awareness and acceptance, they frequently encounter medical settings that are not welcoming and/or health care providers who are not knowledgeable about their health needs. Use of correct terminology, following best practices for name and...
Chapter
In the United States, there are approximately one million transgender adults. Although not all transgender people opt to undergo gender-affirming medical or surgical interventions, a large national survey (The US Trans Survey) that included approximately 28,000 transgender and gender nonbinary participants indicated that 42% of transgender men, 28%...
Article
Members of the lesbian, gay, bisexual, transgender, and queer (LGBTQ) community experience marginalization, bias, and discrimination, including in the world of academic medicine. People who are transgender and gender non-binary (TGNB) experience further marginalization compared to individuals who are lesbian, gay, bisexual, and queer. According to...
Article
Background: A vast amount of research has demonstrated the numerous adverse health risks of short sleep duration and poor sleep health among the general population, and increasing studies have been conducted among lesbian, gay, and bisexual individuals. However, although poor sleep health is disproportionately experienced by sexual and gender minor...
Article
Full-text available
Background: Young sexual minority men in the United States have a high incidence rate of HIV infection. Early intervention among this group, that is timed to precede or coincide with sexual initiation, is of critical importance to prevent HIV infection. Despite this, there are very few published randomized controlled efficacy trials testing interv...
Article
Institutional guidelines for transgender children and adolescent minors fail to adequately address a critical juncture of care of this population: how to proceed if a minor and their parents have disagreements concerning their gender-affirming medical care. Through arguments based on ethical, paediatric, adolescent and transgender health research,...
Article
The aim of this study was to assess mobility patterns among a sample of transgender women (n=14) in New York City via survey and Global Positioning System (GPS) monitoring. We found varying levels of concordance between the residential neighbourhood and each of the non-residential contexts: 64.3% considered the neighbourhood that they socialised in...
Article
Full-text available
We report two cases of neovaginal Chlamydia trachomatis infection in transgender women who underwent penile-inversion vaginoplasty procedures with integrated peritoneum and urethral grafts. These tissue types may have facilitated C. trachomatis infection. Medical providers should implement neovaginal screening for bacterial STIs in transgender pati...
Article
Full-text available
Background Human immunodeficiency virus (HIV)-infected men who have sex with men (MSM) are at increased risk of anorectal infection with high-risk human papillomavirus and subsequent high-grade squamous intraepithelial lesions (HSIL), the putative precursor to anal cancer. Recently, an epidemic of sexually transmitted hepatitis C virus (HCV) has em...