Matthew J Mimiaga
Biographic Data
| ID | 205653 |
|---|---|
| NAME | Matthew J Mimiaga |
| GIVEN NAMES | Matthew J |
| FAMILY NAME | Mimiaga |
| SIGNATURE | MIMIAGA M J |
| AFFILIATIONS | Fenway Health |
| ORCID | 0000-0001-9256-2905 |
| VERIFIED | Yes |
| TOTAL WORKS | 175 |
| TOTAL CITATIONS | 259 |
| AUTHOR COUNT | 175 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2005 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 7 |
Neighborhood Violence and Safety
Neighborhood violence and safety concerns are associated with poor health outcomes including HIV acquisition/transmission, and possible lack of viral suppression. Using a cross-sectional analytic design, we determined the prevalence of neighbourhood violence and safety concerns among participants in the MACS WIHS Combined Cohort Study, a large US cohort of men and women with and without HIV. We used multivariable logistic regression to assess fac…
Competence to Consent and Willingness to Participate in Behavioral Trials Among a Mixed HIV Serostatus Sample of Young Gay and Bisexual Men Who Use Stimulants
Introduction Despite elevated need, young gay and bisexual men (YGBM) who use stimulants are underrepresented in research. Consent processes are essential for human subjects’ protection, yet shortcomings in consent practices and their role in willingness to participate in research have been underexplored.Methods Between July 2024 and January 2025, we enrolled 115 YGBM who use stimulants and are at risk for HIV transmission/acquisition in an onlin…
Preferences for ART adherence–focused service delivery among transfeminine individuals living with HIV in Mumbai and New Delhi, India
Background Transfeminine individuals in India face disproportionately high HIV prevalence and encounter multilevel barriers to sustained antiretroviral therapy (ART) adherence. While India’s National AIDS Control Program (NACP) has expanded outreach to transfeminine individuals, few interventions address the intersectional challenges undermining long-term optimal adherence and viral suppression. Methods We conducted 30 in-depth interviews with tr…
Misinformation, Social Media, and Myths About Injectable ART
Effective health communication is vital for engagement in HIV care, especially for transgender women (TGW), who often encounter misinformation. This issue is worsened by lower literacy levels and stigma. Despite efforts like providing free antiretroviral therapy (ART), misinformation persists, and little is known about the specific rumors and misconceptions that influence TGW's engagement with HIV services. This study aims to fill these gaps and …
Persistent HIV Transmission Misconceptions Among People Who Inject Drugs in Massachusetts, USA
Despite the widespread success of combination antiretroviral therapy in reducing overall HIV morbidity and mortality, people who inject drugs (PWID) continue to experience elevated risk of infection and suboptimal care outcomes. Addressing knowledge gaps related to HIV acquisition and transmission is essential for reducing incident cases of HIV. We assessed HIV transmission misconceptions (e.g., HIV can be transmitted through sharing cigarettes, …
Procedures to Verify Legitimacy and Uniqueness of Responses in an Online Study with U.S. Young Gay and Bisexual Men Who Use Stimulants
In this brief report, we describe our procedures to determine the legitimacy and uniqueness of responses in an online study with young gay, bisexual, and other men who have sex with men in the U.S. Our verification procedures included automated methods (e.g., Qualtrics' fraud detection, and knowledge, attention, and consistency-checks), manual methods (e.g., reviewing individuals' open-ended descriptions of an image), and verification video-confe…
The intersection of place and health
Despite the availability of resources such as Ryan White-funded clinics, which provide free/low-cost HIV care services, significant disparities in viral suppression rates exist. This study investigates whether neighborhood characteristics and socioeconomic factors are associated with viral suppression rates among people with HIV (PWH) in Southern California neighborhoods with Ryan White clinics. Forty Southern California zip codes with a combined…
The Health Toll of Encampment Sweeps
From policy to practice
Transgender women (TGW) in India face one of the highest HIV prevalence rates among key populations in India, yet data on their engagement in the HIV care cascade is limited. This study investigates barriers and supportive factors for adhering to antiretroviral therapy (ART), which is vital for achieving viral suppression, reducing transmission risk to nearly zero (i.e. undetectable = utransmittable; U = U), and enhancing the quality of life for …
Psychosocial, Behavioral, and HIV-Related Health Among Men Living with HIV Who Have a History of Incarceration
Incarceration is intricately linked with the HIV epidemic, with incarcerated individuals exhibiting HIV prevalence rates three times higher than the general population. We used baseline data from the Multicenter AIDS Cohort Study (MACS)/Women's Interagency HIV Study (WIHS) Combined Cohort Study (MWCCS) to describe select health outcomes among men living with HIV (MWH) who have never been incarcerated and with a history of lifetime incarceration, …
Navigating the Mpox Outbreak
The 2022 mpox outbreak significantly impacted gay, bisexual, and other men who have sex with men (MSM) in the U.S., with Los Angeles representing nearly 40% of California cases. Limited data exist on how MSM living with and without HIV navigated the outbreak and their decision-making regarding vaccination. Between November 2023 and March 2024, we conducted a mixed-methods study with 21 cisgender MSM in Los Angeles who completed a semi-structured …
Physical Activity, Cigarette Smoking, and Depression Among People with HIV
Transgender Women in India
The prevalence of HIV among transgender women (TGW) in India is disproportionately high, estimated at 4% to 8% in comparison with the national average of 0.2%. Despite free antiretroviral therapy (ART) provided by the government, TGW encounter multilevel barriers—including stigma, poverty, and lack of gender-affirming care—that hinder HIV care access and retention. Existing behavioral frameworks fail to address the compounded effects of systemic …
The Intersectional Influence of Experienced Stigma on Clinically Significant Depressive Symptoms Among Gay, Bisexual, and Other Men Who Have Sex with Men
We sought to determine how intersectional stigma, operationalized by interactions of perceived stigma experiences in adulthood attributed to various social identities/characteristics (age, gender, race, ethnicity/nationality, religion, height/weight, other aspect of appearance [unrelated to the identities/characteristics listed-e.g. height/weight/race/gender], physical disability, sexual orientation, and HIV status), associates with clinically si…
HIV symptom severity and associated factors among young people with HIV in Ghana
Adolescents and young adults (young people) with HIV (YPWH) often struggle with treatment self-management. Many have symptoms due to HIV disease, medication side-effects, or comorbid conditions. Our study investigated the severity of HIV-related symptoms among YPWH aged 18–24 with detectable viral loads from an HIV clinic in Ghana (N = 60) and potential correlates of severity across a range of factors. Results indicated that YPWH currently experi…
A qualitative exploration of how to support PrEP adherence among young men who have sex with men
New HIV infections disproportionately affect young men who have sex with men (YMSM). PrEP is effective in preventing HIV acquisition; however, adherence is critical and is often suboptimal among YMSM. Interventions addressing the unique PrEP adherence challenges faced by YMSM are needed. We conducted qualitative interviews with 20 HIV-negative, YMSM (ages 15-24) with a PrEP indication and 11 healthcare professionals to inform adaption of a PrEP a…
Study protocol of a randomized controlled trial to assess the efficacy of the “PrEPare for Work” intervention to enhance PrEP uptake and optimize adherence for HIV prevention among male sex workers in…
ClinicalTrials.gov number NCT05736614, registered February 8, 2023
Longitudinal Analysis of Overlapping Psychosocial Factors Predicting Incident Hospitalization Among Mixed HIV Serostatus Men who have Sex with Men in the Multicenter Aids Cohort Study
Randomized Pilot Trial of the Text-Based Adherence Game for Ghanaian Youth with HIV
Prevalence of methamphetamine use among gay, bisexual and other men who have sex with men
Study protocol for an efficacy trial of the “PrEP for Health” intervention to increase HIV PrEP use among people who inject drugs
ClinicalTrials.gov number NCT04430257, registered June 12, 2020
Individual-Level Psychosocial Resiliencies as Mediators of the Relationship Between Internalized Homophobia and Depressive Symptoms Among Middle-Aged and Older Men Living With and Without HIV
PrEPare for Work
Association of Partnership-Level Methamphetamine Use on Inconsistent PrEP Care Engagement Among GBMSM in Los Angeles County
Gender affirming hormone therapy dosing behaviors among transgender and nonbinary adults
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 multivariable logistic regression models to identify factors associated with hormone-dosing behaviors and c…
A Population-Based Study of Sexual Orientation Identity and Gender Differences in Adult Health
Objectives. We provide estimates of several leading US adult health indicators by sexual orientation identity and gender to fill gaps in the current literature. Methods. We aggregated data from the 2001–2008 Massachusetts Behavioral Risk Factor Surveillance surveys (N = 67 359) to examine patterns in self-reported health by sexual orientation identity and gender, using multivariable logistic regression. Results. Compared with heterosexuals, sexua…
Street Workers and Internet Escorts
Sexual Mixing Patterns and Partner Characteristics of Black MSM in Massachusetts at Increased Risk for HIV Infection and Transmission
Using a Two-Step Method to Measure Transgender Identity in Latin America/the Caribbean, Portugal, and Spain
Health Care Issues Among Lesbian, Gay, Bisexual, Transgender and Intersex (LGBTI) Populations in the United States
This supplemental issue of the Journal of Homosexuality presents research that explores a variety of health care issues encountered by lesbian, gay, bisexual, transgender and intersex (LGBTI) population groups in the United States over the 10-year period from 1993 to 2002. Topics include access to health care, utilization of care, training of medical and mental health providers, and the appropriate preparation of clinical offices and waiting area…
Race-Based Sexual Preferences in a Sample of Online Profiles of Urban Men Seeking Sex with Men
Uncertainty and Confusion Regarding Transgender Non-discrimination Policies
Garnering an In-depth Understanding of Men Who Have Sex with Men in Chennai, India
High Prevalence of Multiple Syndemic Conditions Associated with Sexual Risk Behavior and HIV Infection Among a Large Sample of Spanish- and Portuguese-Speaking Men Who Have Sex with Men in Latin Ameri…
What Makes a Respondent-Driven Sampling “Seed” Productive? Example of Finding At-Risk Massachusetts Men Who Have Sex with Men
Mental Health Concerns of Gay and Bisexual Men Seeking Mental Health Services
Little data exist about the mental health needs of gay and bisexual men. This is due to limitations of existing studies such as small and nonrepresentative samples, failure to assess sexual orientation, and concerns about stigmatization, possibly causing sexual minority individuals to be reluctant to disclose their sexual orientation to researchers. Fenway Community Health is a large urban health center that serves the LGBT community. The large n…
Predictors of Identifying as a Barebacker among High-Risk New England HIV Seronegative Men Who Have Sex with Men
Do Male Couples Agree on Their Sexual Agreements? An Analysis of Dyadic Data
Qualitative Comparison of Barriers to Antiretroviral Medication Adherence Among Perinatally and Behaviorally HIV-Infected Youth
Medication adherence among youth living with HIV (28%-69%) is often insufficient for viral suppression. The psychosocial context of adherence barriers is complex. We sought to qualitatively understand adherence barriers among behaviorally infected and perinatally infected youth and develop an intervention specific to their needs. We conducted in-depth interviews with 30 youth living with HIV (aged 14-24 years) and analyzed transcripts using the c…
Gradients in Depressive Symptoms by Socioeconomic Position Among Men Who Have Sex With Men in the EXPLORE Study
This study examines gradients in depressive symptoms by socioeconomic position (SEP; i.e., income, education, employment) in a sample of men who have sex with men (MSM). Data were used from EXPLORE, a randomized, controlled behavioral HIV prevention trial for HIV-uninfected MSM in six U.S. cities (n = 4,277). Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression scale (short form). Multiple linear regressions wer…
Health Care Access and Sexually Transmitted Infection Screening Frequency Among At-Risk Massachusetts Men Who Have Sex With Men
Objectives. We sought to assess risk exposures, health care access, and screening rates for HIV and sexually transmitted infections (STIs) among men who have sex with men (MSM) in Massachusetts. Methods. We used a modified respondent-driven sampling method to collect data between March 2006 and May 2007. Overall, 126 MSM completed a survey. Results. Seventy percent of participants reported unprotected receptive anal intercourse with at least 1 no…
Young transgender women survivors of intimate partner violence
Research is critically needed to understand protective processes that may lessen the impact of intimate partner violence (IPV) on negative outcomes for transgender individuals. The current study utilized a latent class analysis to identify combinations of protective processes (i.e., collective self-esteem and social support) in relation to internalizing mental health symptoms among young transgender women (YTW) survivors of IPV. Data from Project…
Patterns of Sexual Behaviors in Young Men Who Have Sex With Men in Mexico
Recent research has documented the importance of understanding the multidimensional nature of sexual risk behavior. However, little is known about patterns of sexual behavior among men who have sex with men (MSM) in Mexico, men who are at greatest risk for HIV and sexually transmitted infections compared to other subpopulations in the country. This study applied latent class analysis to data from a large, HIV-negative sample of 18- to 25-year-old…
HIV Sexual Risk Behavior among Black Men Who Meet Other Men on the Internet for Sex
Sexual Orientation Differences in Asthma Correlates in a Population-Based Sample of Adults
To understand what conditions may correlate with asthma diagnoses in the lesbian, gay, and bisexual (LGB) population, we used Massachusetts Behavioral Risk Factor Surveillance System data to construct multivariable logistic regression models separately for LGB individuals and heterosexuals. Current or former smoking and obesity were positively associated with history of an asthma diagnosis among both LGB individuals and heterosexuals. Being under…
Biopsychosocial Health Outcomes and Experienced Intersectional Stigma in a Mixed HIV Serostatus Longitudinal Cohort of Aging Sexual Minority Men, United States, 2008‒2019
Objectives. To determine whether intersectional stigma is longitudinally associated with biopsychosocial outcomes. Methods. We measured experienced intersectional stigma (EIS; ≥ 2 identity-related attributions) among sexual minority men (SMM) in the United States participating in the Multicenter AIDS Cohort Study. We assessed longitudinal associations between EIS (2008‒2009) and concurrent and future hypertension, diabetes, dyslipidemia, antiretr…
Correlates of Geosocial Networking Applications (GSN Apps) Usage among Gay, Bisexual, and Other Men Who Have Sex with Men in Nigeria, Africa
Psychological Problems Mediate the Relationship Between Minority Stress and HIV Sexual Risk Among Nigerian Men Who Have Sex with Men
Concordance in the Reporting of Intimate Partner Violence among Male-Male Couples
LifeSkills for Men (LS4M)
Nonadherence to medical appointments is associated with increased plasma HIV RNA and decreased CD4 cell counts in a community-based HIV primary care clinic
This study examined the association of appointment nonadherence to markers of disease severity using one year of demographic and health information on 995 individuals with HIV in primary care at an urban community health centre. At the latest visit, 106 of 946 valid cases (11.2%) had a CD4 less than or equal to 200, and 454 of 936 valid cases (48.5%) had detectable plasma HIV RNA (greater than 50 copies/ml). Using logistic regression, appointment…
MSM in HIV-Prevention Trials are Sexual Partners With Each Other
Perceptions About the Acceptability of Assessments of HIV Medication Adherence in Lilongwe, Malawi and Chennai, India
Men Who Have Sex With Men
In Brief Objectives: This study was designed to gain a deeper understanding of the barriers and facilitators related to sexually transmitted diseases (STDs) and HIV screening among at-risk Boston men who have sex with men (MSM). Study Design: The cohort was recruited by a modified respondent-driven sampling technique and used one-on-one semistructured interviews and a quantitative survey to examine participants' understanding of STDs and HIV, per…
Study participation as a social group influencing sexual behaviours in an HIV-prevention trial for men who have sex with men
Perceived group membership, perceptions about accompanying group norms and the degree to which a person identifies with a social group are predictive of a wide range of human behaviours. Behavioural clinical trials in general, and HIV-prevention intervention trials in particular, however, have not examined the degree to which individuals who join a large behavioural study (and hence, a group) may, in an unanticipated way, develop a sense of socia…
Differential HIV Risk Behavior among Men who have Sex with Men Seeking Health-Related Mobile Van Services at Diverse Gay-Specific Venues
Psychosocial and Behavioral Predictors of Partner Notification After HIV and STI Exposure and Infection Among MSM
Depressive Symptoms, Utilization of Mental Health Care, Substance Use and Sexual Risk Among Young Men Who have Sex with Men in EXPLORE
Street Workers and Internet Escorts
Predictors of Identifying as a Barebacker among High-Risk New England HIV Seronegative Men Who Have Sex with Men
Acceptability of an Internet-Based Partner Notification System for Sexually Transmitted Infection Exposure Among Men Who Have Sex With Men
US men who have sex with men (n=1848) completed an online questionnaire about their willingness to use Internet-based partner notification. Eighty-one percent reported that it would be important to them to receive a partner notification e-mail if they had been exposed to a sexually transmitted infection. Seventy percent reported that if infected, they would use a public health specialist to inform partners of possible exposure through Internet no…
Mental Health Concerns of Gay and Bisexual Men Seeking Mental Health Services
Little data exist about the mental health needs of gay and bisexual men. This is due to limitations of existing studies such as small and nonrepresentative samples, failure to assess sexual orientation, and concerns about stigmatization, possibly causing sexual minority individuals to be reluctant to disclose their sexual orientation to researchers. Fenway Community Health is a large urban health center that serves the LGBT community. The large n…
Health Care Issues Among Lesbian, Gay, Bisexual, Transgender and Intersex (LGBTI) Populations in the United States
This supplemental issue of the Journal of Homosexuality presents research that explores a variety of health care issues encountered by lesbian, gay, bisexual, transgender and intersex (LGBTI) population groups in the United States over the 10-year period from 1993 to 2002. Topics include access to health care, utilization of care, training of medical and mental health providers, and the appropriate preparation of clinical offices and waiting area…
Preexposure Antiretroviral Prophylaxis Attitudes in High-Risk Boston Area Men Who Report Having Sex With Men
BACKGROUND: Preexposure prophylaxis (PrEP) could protect individuals engaging in repeated high-risk behaviors from HIV infection. Understanding the demographic and behavioral predictors of intent-to-use PrEP may prove useful to identify clinical trial participants. METHODS: In 2007, 227 HIV-uninfected men who report having sex with men (MSM) recruited through modified respondent-driven sampling completed an interviewer-administered survey assessi…
Childhood Sexual Abuse Is Highly Associated With HIV Risk-Taking Behavior and Infection Among MSM in the EXPLORE Study
BACKGROUND: Previous studies have found high rates of childhood sexual abuse (CSA) among US men who have sex with men (MSM). CSA history has been associated with a variety of negative effects later in life including behaviors that place MSM at greater risk for HIV acquisition and transmission. The present analysis is the first to examine the longitudinal association between CSA and HIV infection, unprotected anal sex, and serodiscordant unprotect…
Stressful or traumatic life events, post-traumatic stress disorder (PTSD) symptoms, and HIV sexual risk taking among men who have sex with men
The present study assessed the presence of post-traumatic stress disorder (PTSD) symptoms in response to stressful or traumatic life events and their impact on HIV risk behaviors and associated psychosocial variables among men who have sex with men (MSM). Participants (n=189; 60% HIV-infected) who were recruited by notices posted in a community health clinic and via a modified respondent-driven sampling technique completed a behavioral assessment…
Clinically Significant Depressive Symptoms as a Risk Factor for HIV Infection Among Black MSM in Massachusetts
Sexual Mixing Patterns and Partner Characteristics of Black MSM in Massachusetts at Increased Risk for HIV Infection and Transmission
Health Care Access and Sexually Transmitted Infection Screening Frequency Among At-Risk Massachusetts Men Who Have Sex With Men
Objectives. We sought to assess risk exposures, health care access, and screening rates for HIV and sexually transmitted infections (STIs) among men who have sex with men (MSM) in Massachusetts. Methods. We used a modified respondent-driven sampling method to collect data between March 2006 and May 2007. Overall, 126 MSM completed a survey. Results. Seventy percent of participants reported unprotected receptive anal intercourse with at least 1 no…
Mental Health and HIV Risk in Men Who Have Sex With Men
Evidence-based HIV prevention interventions with men who have sex with men (MSM) in the United States have moderate effect sizes in reducing HIV sexual risk behavior. Mental health and psychosocial problems, which both disproportionately affect MSM populations and are implicated in HIV transmission risk behaviors, also likely interfere with the uptake of HIV behavioral interventions. Moreover, given that mental health and psychosocial problems su…
Problematic alcohol use and HIV risk among Black men who have sex with men in Massachusetts
This analysis was designed to explore the frequency of problem drinking and its role in potentiating HIV risk among a community-recruited sample of Black men who have sex with men (MSM) in Massachusetts. Black MSM (n=197) recruited via modified respondent-driven sampling between January and July 2008 completed an interviewer-administered survey, including HIV sexual behavior, the Center for Epidemiologic Studies Depression Scale (CES-D), and the …
“We fear the police, and the police fear us”
Ukraine has one of the most severe HIV/AIDS epidemics in Europe, with an estimated 1.63% of the population living with HIV/AIDS in 2007. Injection drug use (IDU) remains the predominant mode of transmission in Kiev - the capital and largest city. Prior reports suggest that the HIV infection rate among IDUs in Kiev reaches 33%, and many have poor and inequitable access to highly active antiretroviral therapy (HAART). Among those with access to HAA…
Sex Parties among Urban MSM
Challenges in Addressing Depression in HIV Research
Use of Non-Occupational Post-Exposure Prophylaxis does not Lead to an Increase in High Risk Sex Behaviors in Men Who have Sex with Men Participating in the EXPLORE Trial
Non-occupational post-exposure prophylaxis (nPEP) use is an HIV prevention strategy that has been recommended by the CDC to prevent HIV infection after a high risk sexual exposure since 1997. In a behavioral intervention trial of 4,295 MSM we assessed perceptions and use of nPEP over 4 years in six cities across the United States. Overall, 1.9% of MSM reported use of nPEP prior to enrollment, and 6.3% at least once during the trial. Awareness of …
Medicine (161 works) · HIV/AIDS Research and Interventions (144 works) · Family medicine (109 works) · Psychiatry (109 works) · Psychology (107 works) · Men who have sex with men (98 works) · HIV, Drug Use, Sexual Risk (93 works) · Public health (85 works) · Human immunodeficiency virus (HIV (79 works) · Demography (76 works)