Substance Use-Related Intentional Nonadherence to Antiretroviral Therapy Among Young Adults Living with HIV

A Call for Youth Voice to Support Engagement in Care for 18- to 29-Year Olds Living with HIV in the US South

Youth with HIV (YWH) face challenges in achieving viral suppression, particularly in the Southern United States, and welcome novel interventions responsive to community needs. The Theory of Planned Behavior (TPB) describes factors that influence behavior change, and the Positive Youth Development (PYD) supports youth-focused program design. We applied TPB and PYD to explore factors supporting care engagement and challenges for YWH in South Texas. We conducted 14 semi-structured interviews with YWH and 7 focus groups with 26 stakeholders informed by TPB, PYD, and themes from a youth advisory board (YAB). The research team and YAB reviewed emerging themes, and feedback-aided iterative revision of interview guides and codebook. Thematic analysis compared code families by respondent type, TPB, and PYD. All study methods were reviewed by the UT Health San Antonio and University Health Institutional Review Boards. Emerging themes associated with care engagement included: varied reactions to HIV diagnosis from acceptance to fear/grief; financial, insurance, and mental health challenges; history of trauma; high self-efficacy; desire for independence; and desire for engagement with clinic staff from their age group. Stakeholders perceived YWH lifestyle, including partying and substance use, as care barriers. In contrast, YWH viewed "partying" as an unwelcome stereotype, and barriers to care included multiple jobs and family responsibilities. Two key themes captured in PYD but not in TPB were the importance of youth voice in program design and structural barriers to care (e.g., insurance, transportation). Based on these findings, we provide critical and relevant guidance for those seeking to design more effective youth-centered HIV care engagement interventions. By considering the perspectives of YWH in program design and incorporating the PYD framework, stakeholders can better align with YWHs' desire for representation and agency. Our findings provide important and relevant guidance for those seeking to design more effective HIV care engagement interventions for YWH.

Substance Use and Adherence to Antiretroviral Therapy among People Living with HIV in the United States

People with HIV (PWH) report substance use at higher rates than HIV-uninfected individuals. The potential negative impact of single and polysubstance use on HIV treatment among diverse samples of PWH is underexplored. PWH were recruited from the Center for Positive Living at the Montefiore Medical Center (Bronx, NY, USA) from May 2017-April 2018 and completed a cross-sectional survey with measures of substance use, antiretroviral therapy (ART) use, and ART adherence. The overall sample included 237 PWH (54.1% Black, 42.2% female, median age 53 years). Approximately half of the sample reported any current substance use with 23.1% reporting single substance use and 21.4% reporting polysubstance use. Polysubstance use was more prevalent among those with current cigarette smoking relative to those with no current smoking and among females relative to males. Alcohol and cannabis were the most commonly reported polysubstance combination; however, a sizeable proportion of PWH reported other two, three, and four-substance groupings. Single and polysubstance use were associated with lower ART adherence. A thorough understanding of substance use patterns and related adherence challenges may aid with targeted public health interventions to improve HIV care cascade goals, including the integration of substance use prevention into HIV treatment and care settings.