Publications by authors named "Paul Shuper"

Background: Although some evidence suggests that alcohol, substance use, and mental health issues diminish adherence to HIV Pre-Exposure Prophylaxis (PrEP) among gay, bisexual, and other men-who-have-sex-with-men (gbMSM), findings are somewhat inconsistent and have primarily derived from studies involving non-random samples. Medical chart extraction can provide unique insight by in part surmounting sampling-related limitations, as data for entire PrEP clinic populations can be examined. Our investigation entailed comprehensive chart extraction to assess the extent to which chart-reported alcohol, substance use, and mental health issues were associated with chart-reported PrEP nonadherence.

View Article and Find Full Text PDF

In Jamaica, stigma experiences of sex workers (SW), gay men and other men who have sex with men (MSM), and transgender women living with HIV remain understudied. To address this gap, we explored experiences of stigma and linkages with the HIV care cascade among key populations living with HIV in Jamaica, including cisgender women SW, MSM, and transgender women. This qualitative study involved n = 9 focus groups (FG), n = 1 FG per population living with HIV (SW, MSM, transgender women) in each of three sites (Kingston, St.

View Article and Find Full Text PDF

Heterosexual-identified men who have sex with men (H-MSM) are a unique population difficult to identify and recruit for research and practice. Yet, engaging H-MSM remains a top research priority to learn more about this population's health needs. A scoping review was conducted to develop a stronger understanding of recruitment patterns involving H-MSM in research.

View Article and Find Full Text PDF

Objective: A key factor for incidence of HIV is alcohol consumption. It impacts judgment and the probability to overlook risk-relevant information, which creates a pathway to reduced adherence to biomedical prevention and engagement in condomless sex. We strengthen the understanding of the link between alcohol consumption and risk of HIV among married men in sub-Saharan Africa (SSA), as we use comprehensive population-level data to provide robust evidence with high external validity.

View Article and Find Full Text PDF
Article Synopsis
  • A study examined the knowledge of THC and CBD concentrations in cannabis among people living with HIV (PLWH) who use it for medicinal and nonmedicinal reasons, finding that they reported some knowledge about these concentrations on 43.1% of days for THC and 26.6% for CBD during a 14-day survey period.
  • Participants who predominantly used non-flower cannabis products had a higher awareness of cannabinoid concentrations, and those using cannabis primarily for medicinal purposes showed a greater overall understanding compared to others.
  • The research suggests that increased knowledge of cannabinoid concentrations may help reduce negative consequences associated with cannabis use among PLWH, indicating its potential importance in their treatment and symptom
View Article and Find Full Text PDF

Background: Heterosexually identified men who have sex with men (H-MSM) are distinct from other heterosexual men and from gay, bisexual, and other sexual minority men. Specifically, H-MSM experience discordance between their sexual identity (i.e.

View Article and Find Full Text PDF

Background And Aims: Reduction of alcohol consumption is important for people undergoing treatment for HIV. We tested the efficacy of a brief intervention for reducing the average volume of alcohol consumed among patients on HIV antiretroviral therapy (ART).

Design, Setting And Participants: This study used a two-arm multi-centre randomized controlled trial with follow-up to 6 months.

View Article and Find Full Text PDF

Alcohol use has been associated with multiple types of sexual risk behaviors, such as condomless sex or having multiple sexual partners, behaviors that are linked to the risk of sexually transmitted infections (STIs). The aim of this review was to present updated evidence to demonstrate an association between alcohol consumption and STIs and evaluate the causal nature of this link, as well as to present interventions that reduce alcohol consumption and its effect on STIs. We conducted a systematic review according to the PRISMA guidelines using PubMed and Embase databases.

View Article and Find Full Text PDF

Background: Accurately quantifying alcohol use among persons with HIV (PWH) is important for validly assessing the efficacy of alcohol reduction interventions.

Methods: We used data from a randomized controlled trial of an intervention to reduce alcohol use among PWH who were receiving antiretroviral therapy in Tshwane, South Africa. We calculated agreement between self-reported hazardous alcohol use measured by the Alcohol Use Disorders Identification Test (AUDIT; score ≥8) and AUDIT-Consumption (AUDIT-C; score ≥3 for females and ≥4 for males), heavy episodic drinking (HED) in the past 30 days, and heavy drinking in the past 7 days with a gold standard biomarker--phosphatidylethanol (PEth) level (≥50 ng/mL)--among 309 participants.

View Article and Find Full Text PDF

This study examined the feasibility of using ecological momentary assessment (EMA) to disentangle medicinal cannabis use (MCU) from recreational cannabis use (RCU) among people living HIV (PLWH). Over a 14-day period, PLWH (N = 29) who engaged in both MCU and RCU completed a smartphone-based survey before and after every cannabis use event assessing general motivation for cannabis use (MCU-only, RCU-only, or mixed MCU/RCU), cannabis use behavior, and several antecedents and outcomes of cannabis use. A total of 739 pre-cannabis surveys were completed; 590 (80%) of the prompted post-cannabis surveys were completed.

View Article and Find Full Text PDF

Background: Gay, bisexual, and other men-who-have-sex-with-men (GBMSM) continue to be disproportionately affected by Human Immunodeficiency Virus (HIV). Although HIV pre-exposure prophylaxis (PrEP) offers an effective means of reducing incident HIV among this population, the HIV-preventive success of oral-based PrEP is contingent upon regimen adherence. Elevated rates of alcohol-, substance use-, and mental health-related issues among GBMSM potentially hinder PrEP-taking efforts, however the evidence for this remains mixed.

View Article and Find Full Text PDF

Co-use of alcohol and cannabis is associated with increased frequency and intensity of use and related problems. This study examined acute effects of alcohol and cannabis on mood, subjective experience, cognition, and psychomotor performance. Twenty-eight healthy cannabis users aged 19-29 years with recent history of binge drinking completed this within-subjects, double-blind, double-dummy, placebo-controlled, randomized clinical trial.

View Article and Find Full Text PDF

The body of knowledge on alcohol use and communicable diseases has been growing in recent years. Using a narrative review approach, this paper discusses alcohol's role in the acquisition of and treatment outcomes from four different communicable diseases: these include three conditions included in comparative risk assessments to date-Human Immunodeficiency Virus (HIV)/AIDS, tuberculosis (TB), and lower respiratory infections/pneumonia-as well as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) because of its recent and rapid ascension as a global health concern. Alcohol-attributable TB, HIV, and pneumonia combined were responsible for approximately 360,000 deaths and 13 million disability-adjusted life years lost (DALYs) in 2016, with alcohol-attributable TB deaths and DALYs predominating.

View Article and Find Full Text PDF

Introduction: The Theory of Planned Behaviour (TPB) describes how attitudes, norms and perceived behavioural control guide health behaviour, including alcohol consumption. Dual Process Theories (DPT) suggest that alongside these reasoned pathways, behaviour is influenced by automatic processes that are determined by the frequency of engagement in the health behaviour in the past. We present a computational model integrating TPB and DPT to determine drinking decisions for simulated individuals.

View Article and Find Full Text PDF

Since the beginning of the HIV/AIDS epidemic, gay, bisexual, and other men who have sex with men (gbMSM) have been disproportionately impacted by HIV/AIDS health disparities. Research showed that resilience to HIV/AIDS is associated with increased use of relevant health services, lower sexual health risks, and improved mental health outcomes among racially and ethnically diverse gbMSM. As the subpopulation that has historically been impacted by HIV/AIDS the longest, older gbMSM living with HIV/AIDS have inarguably exhibited resilience to HIV/AIDS the most.

View Article and Find Full Text PDF

Evidence-based research has highlighted the need for exploring factors that support the mental health of men who have sex with men living with HIV/AIDS (MSMLWH), and environmental influences that promote their resilience to HIV/AIDS. This exploratory study utilized a community-based participatory research approach to investigate barriers and facilitators to promoting resilience to HIV/AIDS, specifically among racial and ethnic minority, middle-aged and older MSMLWH, a population that continues to be significantly impacted by HIV/AIDS today. This collaborative, qualitative study recruited participants who identified as racial or ethnic minority MSMLWH, were aged 40 or older, and resided in Ontario, Canada.

View Article and Find Full Text PDF

The prevalence of co-use of alcohol and cannabis is increasing, particularly among young adults. Sex differences in the effects of alcohol alone and cannabis alone have been observed in animals and humans. However, sex differences in the acute pharmacological effects of cannabis combined with alcohol have not yet been studied.

View Article and Find Full Text PDF

HIV secondary prevention focuses on averting onward HIV transmission, which can be realized when people living with HIV enact requisite HIV care continuum-related behaviors to achieve viral suppression, and engage in condom-protected sex when virally unsuppressed. Alcohol has been detrimentally linked to all aspects of HIV secondary prevention, and although a growing number of behavioral interventions account for and address alcohol use within this realm, further efforts are needed to fully realize the potential of such initiatives. The present article proposes a series of targeted priorities to inform the future design, implementation, and evaluation of alcohol-related behavioral intervention research within the scope of HIV secondary prevention.

View Article and Find Full Text PDF

Largescale individual-level and agent-based models are gaining importance in health policy appraisal and evaluation. Such models require the accurate depiction of the jurisdiction's population over extended time periods to enable modeling of the development of non-communicable diseases under consideration of historical, sociodemographic developments. We developed CASCADEPOP to provide a readily available sociodemographic micro-synthesis and microsimulation platform for US populations.

View Article and Find Full Text PDF
Article Synopsis
  • Alcohol use significantly affects liver health, leading to various liver diseases beyond just alcoholic liver disease.
  • A conceptual framework was created to understand the relationship between alcohol consumption and liver diseases, estimating the impact for the USA in 2017.
  • The study found that alcohol contributed to numerous health issues, including tens of thousands of new liver disease cases and deaths, highlighting the need for better recognition of alcohol's role in liver-related health problems in clinical and prevention strategies.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how combined use of alcohol and cannabis affects driving performance and perception of impairment among frequent cannabis users.
  • The research involved a controlled trial where participants underwent simulated driving tests under various conditions, including combinations of the substances and placebos.
  • Results showed significant impairment in driving ability when both substances were used together, with participants often unaware of their decreased driving skills.
View Article and Find Full Text PDF

The generative approach to social science, in which agent-based simulations (or other complex systems models) are executed to reproduce a known social phenomenon, is an important tool for realist explanation. However, a generative model, when suitably calibrated and validated using empirical data, represents just one viable candidate set of entities and mechanisms. The model only partially addresses the needs of an abductive reasoning process - specifically it does not provide insight into other viable sets of entities or mechanisms, nor suggest which of these are fundamentally constitutive for the phenomenon to exist.

View Article and Find Full Text PDF

Background: Although HIV pre-exposure prophylaxis (PrEP) substantially diminishes the likelihood of HIV acquisition, poor adherence can decrease the HIV-protective benefits of PrEP. The present investigation sought to identify the extent to which alcohol consumption, substance use, and depression were linked to PrEP nonadherence among gay, bisexual, and other men-who-have-sex-with-men (gbMSM).

Methods: gbMSM (age ≥ 18, prescribed PrEP for ≥3 months) were recruited from two clinics in Toronto, Canada for an e-survey assessing demographics; PrEP nonadherence (4-day PrEP-focused ACTG assessment); hazardous and harmful alcohol use (AUDIT scores of 8-15 and 16+, respectively); moderate/high risk substance use (NIDA M-ASSIST scores > 4); depression (CESD-10 scores ≥10); and other PrEP-relevant factors.

View Article and Find Full Text PDF

Background: In South Africa, interventions are needed to address the impact of hazardous drinking on antiretroviral therapy among people living with HIV (PLWH). Participant feedback about these interventions can identify ways to enhance their acceptability. We interviewed participants in a randomized controlled trial of a brief motivational interviewing and problem-solving therapy (MI-PST) intervention about their perceptions of this alcohol-reduction intervention.

View Article and Find Full Text PDF