Publications by authors named "Dustin T Duncan"

Sexually minoritized men (SMM), transgender women (TW), and particularly Black SMM and Black TW may be disproportionately impacted by alcohol-related problems. Few studies have empirically examined neighborhood factors that may contribute to alcohol use, specifically among these populations. Using data from the N2 longitudinal cohort study in Chicago, IL, survey data from the second wave of longitudinal assessment (n = 126) and GPS mobility data from enrollment were used to evaluate neighborhood alcohol outlet availability, neighborhood disorder, and neighborhood poverty as correlates of individual alcohol use.

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Background: Using a theoretically-grounded approach to the epidemiological study of HIV incidence among a national, diverse sample of sexual and gender minority (SGM) men (age 17 -29 years), as well as examining HIV incidence through an innovative geospatial lens, is of considerable public health significance. Our overarching objectives are to assemble a U.S.

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Background: Increasing HIV rates among young Latino sexual minority men (YLSMM) warrant innovative and rigorous studies to assess prevention and treatment strategies. Ecological momentary assessments (EMAs) and electronic pill dispensers (EPDs) have been used to measure antiretroviral therapy (ART) adherence repeatedly in real time and in participants' natural environments, but their psychometric properties among YLSMM are unknown.

Objective: The study's objective was to assess the concurrent validity, acceptability, compliance, and behavioral reactivity of EMAs and EPDs among YLSMM with HIV.

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Article Synopsis
  • Chronic insufficient and poor-quality sleep is linked to serious health issues like hypertension and depression, but there’s limited research on the sleep health of people who inject drugs (PWID) in community settings.
  • A study with 472 active opioid-using PWID in Los Angeles and Denver found that 76% had insufficient sleep and 62% reported poor sleep quality, with a mean sleep duration of only 4.99 hours.
  • Factors like drug use, high subsistence scores, violent victimization, and poor health were associated with these negative sleep outcomes, suggesting that addressing these structural issues could improve sleep health and overall well-being for PWID.
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Background: Sexual minority populations experience higher rates of substance use and related problems, but little is known about their specific involvement in driving under the influence (DUI) of alcohol (DUIA) and cannabis (DUIC) incidents.

Methods: Using data from the 2016 to 2019 National Survey on Drug Use and Health, we used logistic regression models to estimate the interactive effects of sexual identity, race/ethnicity, and gender on past-year DUIA among adults who used alcohol and DUIC among adults who used cannabis, accounting for covariates. Using model estimates and linear combinations, we calculated the predicted probabilities of each outcome and compared sexual identity differences within and across race/ethnicity and gender.

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Article Synopsis
  • - The study focuses on alcohol-related problems among sexually minoritized men (SMM) and transgender women (TW), especially within Black SMM and Black TW communities, highlighting a lack of prior research on neighborhood factors affecting alcohol consumption in these groups.
  • - Utilizing data from a longitudinal cohort study in Chicago, researchers examined how neighborhood characteristics like alcohol outlet availability, neighborhood disorder, and poverty relate to individual alcohol use, using advanced models that incorporate GPS mobility data.
  • - Findings revealed that while on-premise/off-premise alcohol outlets and violent crime had no significant impact, neighborhood disorder (indicated by vacant buildings) and poverty levels were significantly linked to increased alcohol consumption among these populations, suggesting that social environment factors play a crucial role.
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Despite widespread use of hair products globally, little is known about the prevalence and patterns of use in populations outside the United States. As some hair products contain endocrine-disrupting chemicals (EDCs) and EDCs have been linked to breast cancer, which is increasing globally, in this study, we addressed key knowledge gaps about hair product use and practices, and perceptions of use among women in two counties in Kenya. Using community-engaged approaches in Embu and Nakuru, Kenya, we recruited women aged 15-50 years to complete a questionnaire that ascertained hair product use in the last 7-14 days, ever using hair dyes and chemical relaxers, and participants' perceptions or harm around hair product use.

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Purpose: HIV biomedical intervention uptake is suboptimal among Black sexually minoritized men (SMM) and transgender women (TW). Venues where people meet and interact shape HIV-related risk and prevention behaviors. We aimed to construct GPS-defined venue-based affiliation networks and identify the unique set of venues that could maximize reach of HIV biomedical interventions among Black SMM and TW.

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Transgender women of color (TWOC) experience high rates of police violence and victimization compared to other sexual and gender minority groups, as well as compared to other White transgender and cisgender women. While past studies have demonstrated how frequent police harassment is associated with higher psychological distress, the effect of neighborhood safety and neighborhood police violence on TWOC's mental health is rarely studied. In this study, we examine the association between neighborhood safety and neighborhood police violence with psychological distress among TWOC.

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Background: Adverse childhood experiences (ACE) are important predictors of mental health outcomes in adulthood. However, commonly used ACE measures such as the Behavioural Risk Factor Surveillance System (BRFSS) have not been validated among Black sexually minoritized men (SMM) nor transgender women (TW), whom are known to have higher rates of ACE and poorer mental health outcomes. Assessing the psychometric properties of the measure is important for health equity research, as measurements that are not valid for some populations will render uninterpretable results.

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Background: Black sexual minority men and Black transgender women (BSMM/BTW) experience disproportionate levels of HIV/STI-related risk factors as well as police harassment (PH). PH is linked to psychiatric risk and could play a role in substance use, sexual risk behavior, and HIV/STI risk.

Methods: We used data from the HIV Prevention Trials Network 061(HPTN 061) study to examine associations between PH and HIV/STI-related outcomes.

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Article Synopsis
  • - The study investigates how exposure to violent and property crime affects HIV prevention and care outcomes for Young Black Sexually Minoritized Men (YBSMM) and Transgender Women (TGW), who are at high risk for HIV.
  • - Using GPS technology, researchers analyzed the activity spaces of 286 individuals in Chicago to find links between crime exposure and various HIV-related outcomes, including PrEP use.
  • - Results showed that individuals in higher-crime areas were significantly less likely to use PrEP for HIV prevention, highlighting crime as a potential barrier to healthcare access for these vulnerable groups.
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Background: Spatial epidemiology has emerged as an important subfield of epidemiology over the past quarter century. We trace the origins of spatial epidemiology and note that its emergence coincided with technological developments in spatial statistics and geography. We hypothesize that spatial epidemiology makes important contributions to descriptive epidemiology and analytic risk-factor studies but is not yet aligned with epidemiology's current focus on causal inference and intervention.

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Article Synopsis
  • Cardiovascular Disease (CVD) is the top cause of death worldwide, and Jordan, with its unique healthcare system and demographic factors, is identified as an important case study for understanding CVD trends in the Arab region.
  • Using data from the Global Burden of Disease dataset, research showed that between 1990 and 2019, while the overall burden of CVD mortality and prevalence increased in absolute numbers, age-standardized rates for these and disability-adjusted life years (DALYs) actually decreased in Jordan.
  • The main risk factors for CVD in Jordan in 2019 included high systolic blood pressure, obesity, dietary risks, and high LDL cholesterol, revealing significant health challenges that still need to be addressed despite
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Black sexually minoritized men (SMM) and transgender women (TW) are subgroups with lower rates of substance use and comparable rates of condom use relative to White SMM and TW yet experience heightened vulnerability to HIV. This study sought to explore associations of substance use, including sex-drug use (i.e.

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  • Research shows that better rest-activity rhythms (RARs) can lower the risk of cardiovascular disease (CVD) and related health issues like hypertension and obesity.
  • Participants with more consistent and active daily patterns had significantly lower odds of prevalent CVD and obesity.
  • The study highlights the importance of stable sleep-wake routines, with earlier and restful sleep periods linked to better cardiovascular health outcomes.
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Article Synopsis
  • Black cisgender gay, bisexual, and other sexual minority men (SMM) and transgender women (TW) are disproportionately impacted by HIV, highlighting the need for more research focused on the effects of substance use and sleep health in this demographic.* -
  • The N2 Part 2 (N2P2) study builds on the original Neighborhoods and Networks (N2) study, aiming to identify socioenvironmental factors that influence HIV prevention and treatment in Black SMM and TW across Chicago.* -
  • Utilizing a longitudinal cohort design, N2P2 will engage 600 participants over 18 months, collecting various data types to assess neighborhood influences and factors like substance use and sleep on health outcomes.*
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This study investigates the changes in physical church closings years 2013 to 2019 in New York City (NYC), Philadelphia, and Baltimore and the association with COVID-19 infection rates. We applied Bayesian spatial binomial models to analyze confirmed cases of COVID-19 as of February 28, 2022, in each city at the zip code-level. A one unit increase in the number of churches closed corresponded to a 5% higher COVID-19 infection rate, in NYC (rate ratio = 1.

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Purpose Of Review: In the era of HIV treatment as prevention (TasP), more clarity is needed regarding whether people with HIV who use stimulants (i.e., methamphetamine, powder cocaine, and crack cocaine) display elevated HIV viral load and greater immune dysregulation.

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Objective: Evaluate associations between racialized and homophobia-based police harassment (RHBPH) and healthcare distrust and utilization among Black Sexual Minority Men (BSMM).

Methods: We utilized data from a longitudinal cohort study from HIV Prevention Trials Network (HPTN) 061 with baseline, six and 12 month follow-up assessments. Using multivariable analysis, we evaluated associations between RHBPH and healthcare distrust and utilization reported at the 6 and 12 month visits.

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We sought to describe and quantify the association between HIV service organization availability, HIV burden, and HIV awareness and prevention in the 57 priority jurisdictions selected as part of the U.S. Ending the HIV Epidemic initiative.

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Purpose: We examine how various pre-exposure prophylaxis (PrEP) accessibility measures impact the detection of PrEP shortage areas and the relation of shortage areas to social determinants of health (SDOH).

Methods: Using ZIP Code Tabulation Areas (ZCTAs) in New York City as a case study, we compared 25 measures of spatial PrEP accessibility across four categories, including density, proximity, two-step floating catchment area (2SFCA), and Gaussian 2SFCA (G2SFCA). Bayesian spatial regression models were used to examine how PrEP accessibility is associated with SDOH.

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Background: Although there is limited literature on medication adherence (including HIV care engagement) and COVID-19 vaccine hesitancy in general populations (i.e., non-sexual or gender minority populations), even less is known about whether HIV care engagement correlates with COVID-19 vaccine hesitancy among sexual and gender minorities, especially those from intersectional backgrounds.

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