Investigating the Relative Influence of Romantic Sex Partners and Close Friends on Adolescent Alcohol and Marijuana Use.

A large body of research has identified peer exposure as a key factor driving adolescent substance use. However, findings on the role of sex partners are less robust and mixed. This study aims to fill this gap by examining the independent contribution of close friends' and sex partners' alcohol and marijuana use on adolescents' use of these substances. A secondary data analysis of social network data collected in 2000-2002 from a household sample of African American youth (14-19 years old) in the Bayview and Hunter's Point neighborhoods of San Francisco was conducted. Index participants and their nominated close friends and romantic sex partners (N = 104 triads) self-reported recent alcohol and marijuana use (defined as any use in the past 3 months). Generalized estimated equations were used to estimate the independent association between adolescent's recent substance use and their friend's and sex partner's use. Adolescents with a marijuana-using romantic sex partner had a nearly six-fold higher odds of using marijuana compared to adolescents with a non-using partner, controlling for close friend's marijuana use and other confounders [OR:5.69, 95%CI: 1.94, 16.7]; no association with close friend's marijuana use was found. A similar pattern was observed for alcohol use. Adolescents with an alcohol-using romantic sex partner had increased odds of using alcohol compared to adolescents with a non-using partner, controlling for close friend's alcohol use and other confounders [OR:2.40, 95%CI: 1.02, 5.63]; no association with close friend's alcohol use was found. Romantic sex partners may play a unique and significant role in adolescent substance use. Peer-focused interventions may be more effective if they consider romantic sex partners. Future research should consider the role of romantic sex partners in changing social context related to substance use from adolescence to young adulthood.

Gendered powerlessness in at-risk adolescent and young women: an empirical model.

In the United States, youth aged 13-24 comprised approximately 21% of new HIV infections in 2017; 13% of these infections occurred among women, the majority of whom (86%) acquired HIV through heterosexual contact (Centers for Disease Control and Prevention. 2019a. HIV and youth. Retrieved from https://www.cdc.gov/hiv/group/age/youth/index.html, Centers for Disease Control and Prevention. 2019b. HIV among women. Retrieved from https://www.cdc.gov/hiv/group/gender/women/index.html). We fit and validated a developmentally appropriate empirical model of Connell's Theory of Gender and Power (Connell, R. W. 1987. Gender and power: Society, the person and sexual politics. Stanford, CA: Stanford University Press, Connell, R. W. 2013. Gender and power: Society, the person and sexual politics. Hoboken, NJ: John Wiley & Sons) in a sample of young women and assessed whether gendered powerlessness reflected a multidimensional higher-order latent factor, as the theory implies. Anonymous computer-assisted interviews were administered to at-risk, sexually active young women (N = 1,101). Factor analyses and structural equation modeling were used to determine the dimensionality of gendered powerlessness. Associations with condom use were examined to validate the model. We fit a three-component model of gendered powerlessness, but not a higher-order latent factor. We observed that high scores on two dimensions of gendered powerlessness - cathexis and sexual division of power - were associated with lower likelihood of condom use. Our three-component model helps elucidate the role that components of gendered powerlessness play in young women's health behaviors and underscores the need for measures tailored to young women at high risk of contracting HIV.

Giving syphilis and gonorrhea to friends: using in-person friendship networks to find additional cases of gonorrhea and syphilis.

BACKGROUND: Syphilis and gonorrhea reached an all-time high in 2018. The resurgence of syphilis and gonorrhea requires innovative methods of sexual contact tracing that encourage disclosure of same-sex sexual contacts that might otherwise be suppressed. Over 75% of Grindr mobile phone application users report seeking "friendship," so this study asked people diagnosed with syphilis and gonorrhea to identify their friends. METHODS: Patients at the two Baltimore sexually transmitted infection (STI) clinics and the Baltimore City Health Department were asked 12 questions to elicit members of their friendship networks before eliciting sexual networks. The study included 353 index cases and 172 friendship contacts, yielding a friendship network of 331 non-isolates (n = 331) and sexual-only network of 140 non-isolates. The data were plotted and analyzed using exponential family random graph analysis. RESULTS: Eliciting respondents' in-person social contacts yielded 12 syphilis cases and 6 gonorrhea cases in addition to the 16 syphilis cases and 4 gonorrhea cases that would have been found with sexual contacts alone. Syphilis is clustered within sexual (odds ratio = 2.2, 95% confidence interval (1.36, 3.66)) and social contacts (OR = 1.31, 95% CI (1.02, 1.68)). Gonorrhea is clustered within reported social (OR = 1.56, 95% CI (1.22, 2.00)) but not sexual contacts (OR = 0.98, 95% CI (0.62, 1.53)). CONCLUSIONS: Eliciting friendship networks of people diagnosed with syphilis and gonorrhea may find members of their sexual networks, drug use networks, or people of similar STI risk. Friendship networks include more diagnosed cases of syphilis and gonorrhea than sexual networks alone, especially among populations with many non-disclosing men who have sex with men (MSM) and women who have sex with women (WSW). Future research should evaluate whether this friendship network method of contact tracing can be implemented by adapting automated mobile phone COVID-19 contact tracing protocols, if these COVID-19 contact tracing methods are able to maintain anonymity and public trust.

The Longitudinal Association between Perceived Powerlessness and Sexual Risk Behaviors among Urban Youth: Mediating and Moderating Effects.

A distal psychosocial factor, perceived powerlessness, has been found to predict various sexual risk behaviors among youth, yet no studies have assessed mediators or moderators in this relationship. Using a demographically diverse, longitudinal sample of urban youth (N = 257), this study assessed whether the need for sexual validation mediates the relationship between perceived powerlessness and sexual risk behaviors and to assess whether this mediated pathway is moderated by socioeconomic status and gender. The mean age of the participants was 21 years old (range: 15-24) and the majority of the sample identified as Black (65%) and female (62%). The results of structural equation modeling showed that the need for sexual validation mediated perceived powerlessness and condomless sex at last sex among Black youth. The need for sexual validation mediated perceived powerlessness and concurrent sexual partnerships among White youth and depended on levels of socioeconomic status. Sexual risk behavior interventions should provide youth with increased opportunities that encourage feelings of validation from other personal achievements in addition to sex while simultaneously addressing the structural conditions that drive young people to feel powerless.

Sexual Partner Characteristics, Relationship Type, and HIV Risk Among a Community Venue-based Sample of Urban Adolescent and Young Adult Men Who Have Sex with Men.

Few studies have examined sexual partnerships and HIV risk in diverse samples of African American/black and Hispanic/Latino adolescent and young adult men who have sex with men (YMSM), a group that have a high burden of HIV in the U.S. A community-venue recruitment approach was used, which identified significant differences in HIV risk by sexual partner type among 1215 YMSM. Those with casual partners had a higher number of sexual partners, had more STIs, and were more likely to engage in transactional sex, to use alcohol, marijuana, or other substances compared with those with main partners only. Among those with female sexual partners, many used condoms "every time" when engaging in vaginal sex with casual partners, but a sizeable proportion "never/rarely" used condoms with their main partners. Our findings demonstrate a need for tailored HIV prevention education and counseling with necessary skills regarding consistent and correct condom use with all sexual partnerships.

Weekly variations in feelings of trust predict incident STI within a prospective cohort of adolescent women from a US city.

OBJECTIVES: Feelings of intimacy, perceptions of partner concurrency (PPC) and perceptions of risk for an STD (PRSTD) are meaningful and dynamic attributes of adolescent sexual relationships. Our objective was to examine whether variations in these STI-associated feelings and perceptions predicted incident Chlamydia trachomatis and/or Neisseriagonorrhoeae infection within a prospective cohort of urban adolescent women. METHODS: A cohort of clinic-recruited women aged 16-19 completed daily surveys on feelings and risk perceptions about each current sex partner on a smartphone continuously for up to 18 months. Urine was tested for C. trachomatis and N. gonorrhoeae every 3 months. Daily responses were averaged across the week. As overall means for trust, closeness and commitment were high, data were coded to indicate any decrease in feelings from the previous week. PRSTD and PPC were reverse coded to indicate any increase from the previous week. An index was created to examine the cumulative effect of variation in these feelings and perceptions. Generalised linear models were used to account for correlation among repeated measures within relationships. RESULTS: For each week that there was a decrease in trust, there was a 45% increase in the risk of being infected with an STI at follow-up (relative risk (RR) 1.45, 95% CI 1.18 to 1.78, P=0.004). Neither a decrease in closeness or commitment, nor an increase in PRSTD or PPC was associated with an STI outcome. Cumulatively, the index measure indicated that a change in an additional feeling or perception over the week increased the odds of an STI by 14% (RR 1.14, 95% CI 1.02 to 1.29, P=0.026). CONCLUSIONS: A decrease in feelings of trust towards a main partner may be a more sensitive indicator of STI risk than PRSTD, PPC or commitment. The next generation of behavioural interventions for youth will need strategies to address feelings of intimacy within adolescent romantic relationships.

Examination of Behavioral, Social, and Environmental Contextual Influences on Sexually Transmitted Infections in At Risk, Urban, Adolescents, and Young Adults.

BACKGROUND: Despite the large body of extant literature on sexually transmitted infections (STIs) in adolescents and young adults (AYAs), more research on social and environmental contextual factors is needed. Also, further examination of STI indicators by gender remains a critical area of research focus. METHODS: Anonymous survey data were collected using audio computer-assisted self-interviews in community venues in urban, low-income, STI prevalent, US neighborhoods to reach AYAs, aged 12 to 24 years. Conventional descriptive statistics, bivariate analysis, and multiple logistical regression models were used to assess indicators of a self-reported lifetime prevalence of STIs. RESULTS: Participants (N = 1540) were on average 20.6 years; 57.2% were women, the majority were racial and ethnic minorities (92%), and almost half (49.2%) identified as sexual minorities. Nearly one third (32.%) had 1 or more STIs. As expected, gender differences were identified. For AYA men, being African American/Black, moving residences more than 4 times since kindergarten, and having a history of human immunodeficiency virus testing were each positively associated with STIs. Also, those who strongly disagreed that many young people in their community exchanged sex for money had a significantly lower likelihood of having an STI. For AYA women, exchanging sex for drugs or money, lacking money, which prevented activities, and using marijuana were each associated with STIs. CONCLUSIONS: This research extends our understanding of social and environmental contextual influences on AYAs' risk for STIs. It highlights differences in risk exposures that are distinctly different for AYA women and men, suggesting the need for tailored interventions to address their unique economic needs and social challenges.

The Interaction of Sexual Validation, Criminal Justice Involvement, and Sexually Transmitted Infection Risk Among Adolescent and Young Adult Males.

BACKGROUND: Young men who have been involved with the criminal justice system are more likely to have concurrent sexual partners, a key driver of sexually transmitted infections. The value men place on having sexual relationships to validate themselves may play an important role in understanding this association. METHODS: Data were from a household survey. Young men (N = 132), aged 16 to 24 years, self-reported whether they ever spent time in jail or juvenile detention and if they had sexual partnerships that overlapped in time. A novel scale, "Validation through Sex and Sexual Relationships" (VTSSR) assessed the importance young men place on sex and sexual relationships (α = 0.91). Weighted logistic regression accounted for the sampling design. RESULTS: The mean (SD) VTSSR score was 23.7 (8.8) with no differences by race. Both criminal justice involvement (CJI) (odds ratio [OR], 3.69; 95% confidence interval [CI], 1.12-12.1) and sexual validation (OR, 1.10; 95% CI, 1.04-1.16) were associated with an increased odds of concurrency; however, CJI did not remain associated with concurrency in the fully adjusted model. There was effect modification, CJI was associated with concurrency among those who scored high on sexual validation (OR, 9.18; 95% CI, 1.73-48.6]; however, there was no association among those who scored low on sexual validation. Racial differences were observed between CJI and concurrency, but not between sexual validation and concurrency. CONCLUSIONS: Sexual validation may be an important driver of concurrency for men who have been involved with the criminal justice system. Study findings have important implications on how sexual validation may explain racial differences in rates of concurrency.

Structural Effects on HIV Risk Among Youth: A Multi-level Analysis.

We proposed a multilevel model of structural influences on HIV-risky sexual partnerships in a diverse sample of 1793 youth residing in 23 states and the District of Columbia. We examined the influence of concentrated disadvantage, HIV stigma, and sexual and gender minority stigma on engagement in HIV risky sexual partnerships and whether youth's participation in opportunity structures, anticipation of HIV stigma, and perceptions of their community as youth-supportive settings mediated structural effects. After controlling for age, HIV status, and race, we found structural HIV stigma had deleterious indirect effects on youth's participation in HIV-risky sexual partnerships. Concentrated disadvantage and structural sexual and gender minority stigma had direct negative effects on youth's perceptions of their communities as supportive and on their participation in prosocial activity. Support perceptions had direct, protective effects on avoidance of HIV-risky sexual partnerships. Structural stigma undermines youth's belief that their communities invest in their safety and well-being.

Exchange of Sex for Drugs or Money in Adolescents and Young Adults: An Examination of Sociodemographic Factors, HIV-Related Risk, and Community Context.

The goal of this research was to examine associations among sociodemographic factors, HIV risk, and community context (e.g., economic insecurity, job training, housing instability, crime victimization, and perceived community norms) in adolescents and young adults who ever exchanged sex for drugs or money. Anonymous survey data were collected using ACASIs at community venues where adolescents and young adults congregate in resource-challenged, STI prevalent, urban, US neighborhoods. Conventional descriptive statistics, Fisher's exact tests, and generalized estimating equations approaches were used to examine associations. Participants (1818, 95.5 % of those screened eligible) were, on average, aged 21.0 years; 42.2 % were males, and 4.6 % were transgender. Almost one-third (32.1 %) identified as gay or lesbian, 18.1 % identified as bisexual; 66.2 % were Black and 21.0 % were Hispanic; 1.3 % was 'living on the street'. A sizeable proportion reported HIV-related risk: 16.3 % exchanged sex, 12.6 % had sex with someone they knew to be HIV-infected, 7.8 % had sex with someone who injected drugs, and 1.3 % injected drugs. Multivariate comparisons identified a number of variables (e.g., being male or transgender, homelessness, sex with a partner who has HIV, STI history, unemployment, job training access, housing instability, crime victimization, perceived community norms) that were significantly associated with exchange of sex (p < 0.05). This research contributes to the knowledge-base regarding exchange of sex among adolescents and young adults, particularly as it relates to community context. Longitudinal studies to describe the trajectory of social, health, and physical risks and consequences are needed for development of effective evidence-based prevention strategies.

Structural and Community Change Outcomes of the Connect-to-Protect Coalitions: Trials and Triumphs Securing Adolescent Access to HIV Prevention, Testing, and Medical Care.

Connect to Protect (C2P), a 10-year community mobilization effort, pursued the dual aims of creating communities competent to address youth's HIV-related risks and removing structural barriers to youth health. We used Community Coalition Action Theory (CCAT) to examine the perceived contributions and accomplishments of 14 C2P coalitions. We interviewed 318 key informants, including youth and community leaders, to identify the features of coalitions' context and operation that facilitated and undermined their ability to achieve structural change and build communities' capability to manage their local adolescent HIV epidemic effectively. We coded the interviews using an a priori coding scheme informed by CCAT and scholarship on AIDS-competent communities. We found community mobilization efforts like C2P can contribute to addressing the structural factors that promote HIV-risk among youth and to community development. We describe how coalition leadership, collaborative synergy, capacity building, and local community context influence coalitions' ability to successfully implement HIV-related structural change, demonstrating empirical support for many of CCAT's propositions. We discuss implications for how community mobilization efforts might succeed in laying the foundation for an AIDS-competent community.

Do young women engage in greater sexual risk behaviour with biological fathers of their children?

OBJECTIVES: Qualitative research suggests that young women's relationships with the biological fathers of their children (BFRs), known colloquially as 'baby daddy' relationships, enable risk for pregnancy and STI/HIV. Our study compared partner characteristics and sexual risk within dyads based on BFR, among a sample of young women in Baltimore, Maryland, USA. METHODS: We conducted secondary analysis of survey data collected in 2011-2013 from heterosexually experienced youth ages 15-24 in Baltimore, Maryland, USA. Analyses are limited to women with at least one recent (past 6 months) sex partner (n=171 participants, reporting on 271 relationships). Using generalised estimating equations with logit function for correlated binary responses, we evaluate associations of BFR with partner characteristics, sexual risk behaviour and contraceptive non-use. RESULTS: At least one BFR partner was reported by 25.2%. Male partners in BFRs were more likely to have been incarcerated or arrested. BFRs were more often characterised by women as 'main' versus 'casual' partners (adjusted OR (AOR) 3.92, 95% CI 1.19 to 12.9). In adjusted analyses, BFR was associated with condom non-use for vaginal (AOR 12.3, 95% CI 3.92 to 38.7) and anal (AOR 3.32, 95% CI 1.34 to 8.22) intercourse. While BFR was associated with contraceptive non-use (AOR 2.21, 95% CI 1.01 to 4.84), this association attenuated to non-significance after adjusting for partnership type (AOR 2.06, 95% CI 0.91 to 4.67). CONCLUSIONS: While few differences in BFR partner characteristics emerged, significantly greater risk for unprotected intercourse was identified within BFR relationships. Findings suggest that the relationship context of a shared child heightens sexual risk for the young women most affected by STI.

BUILDING AN ACADEMIC PEDIATRIC HEALTH SYSTEM AS THE WORLD CONTINUES TO TURN: A CASE STUDY.

In 2011, All Children's Hospital (ACH) joined the Johns Hopkins Health System (JHHS) and in so doing became a member of Johns Hopkins Medicine (JHM). The value proposition for the joining of ACH and JHHS/JHM was to transform ACH into an academic pediatric health system. This case study of the transformation provides evidence for the usefulness of a precision medicine framework to organize investments in programs and practices that further the tripartite mission of academic medical centers and may increase the value of the care they deliver.

Cross-sectional survey comparing HIV risk behaviours of adolescent and young adult men who have sex with men only and men who have sex with men and women in the U.S. and Puerto Rico.

OBJECTIVE: To examine the HIV risk behaviours of men who have sex with men only (MSMO) and men who have sex with men and women (MSMW), aged 12-24 years, in five US cities and in San Juan, Puerto Rico. METHODS: Data were collected through four annual cross-sectional anonymous surveys at community venues and included questions about sexual partnerships, sexual practices including condom use and substance use. Demographic and risk profiles were summarised for both groups. RESULTS: A total of 1198 men were included in this analysis, including 565 MSMO and 633 MSMW. There were statistically significant differences between the two groups for many risk factors examined in multivariable models. MSMW were more likely to identify as bisexual, be in a long-term relationship, have a history of homelessness, have ever used marijuana, have ever been tested for HIV and to have been tested for HIV within the past 6 months. MSMW may be more likely to ever exchange sex for money and ever have a sexually transmitted infection than MSMO. CONCLUSIONS: MSMW were more likely to report several markers of socioeconomic vulnerability or behaviours associated with increased risk for HIV than MSMO. MSMW contribute to HIV prevalence in the USA, and better understanding of the risk profile of this group is essential to understand heterosexual HIV transmission. MSMW, particularly those who identify as bisexual or questioning, may feel uncomfortable participating in programmes that are designed for gay-identified men. Therefore, prevention strategies need to target distinct subgroups that compose the population of MSM.

Attitudes Towards Power in Relationships and Sexual Concurrency Within Heterosexual Youth Partnerships in Baltimore, MD.

Sexual concurrency may increase risk for HIV/STIs among youth. Attitudes about gender roles, including power balances within sexual partnerships, could be a driver. We examined this association among Baltimore youth (N = 352), aged 15-24. Data were collected from February, 2011 to May, 2013. We examined whether index concurrency in male-reported partnerships (N = 221) and sex partner's concurrency in female-reported partnerships (N = 241) were associated with youth's attitudes towards relationship power. Males with more equitable beliefs about power were less likely to report index concurrency. Females with more equitable beliefs were more likely to report sex partner's concurrency. The relationship was significant in main and casual partnerships among females and main partnerships among males. The strongest associations were detected among middle-socioeconomic status (SES) males and low-SES and African American females. Implementing interventions that recognize the complex relationship between socioeconomic context, partner dynamics, gender, and sexual behavior is an important step towards reducing HIV/STI risk among youth.

Is the Association between Neighborhood Drug Prevalence and Marijuana use Independent of Peer Drug and Alcohol Norms? Results from a Household Survey of Urban Youth.

To inform policy debates surrounding marijuana decriminalization and add to our understanding of social and structural influences on youth drug use, we sought to determine whether there was an independent association between neighborhood drug prevalence and individual-level marijuana use after controlling for peer drug and alcohol norms. We analyzed cross-sectional data from a household survey of 563 youth aged 15-24 in Baltimore, Maryland. The study population was 88 % African-American. Using gender-stratified, weighted, multilevel logistic regression, we tested whether neighborhood drug prevalence was associated with individual-level marijuana use after controlling for peer drug and alcohol norms. Bivariate analyses identified a significant association between high neighborhood drug prevalence and marijuana use among female youth (AOR = 1.76, 95% CI = 1.26, 2.47); the association was in a similar direction but not significant among male youth (AOR = 1.26, 95% CI = 0.85, 1.87). In multivariable regression controlling for peer drug and alcohol norms, high neighborhood drug prevalence remained significantly associated among female youth (AOR = 1.59, 95% CI = 1.12, 2.27). Among male youth, the association was attenuated toward the null (AOR = 0.95, 95% CI = 0.63, 1.45). In the multivariable model, peer drug and alcohol norms were significantly associated with individual-level marijuana use among female youth (AOR = 1.54, 95% CI = 1.17, 2.04) and male youth (AOR = 2.59, 95% CI = 1.65, 4.07). This work suggests that individual-level marijuana use among female youth is associated with neighborhood drug prevalence independent of peer norms. This finding may have important implications as the policy landscape around marijuana use changes.

Coalition formation to address structural determinants of methamphetamine use in Thailand.

Despite two recent government-sponsored 'wars on drugs', methamphetamine use continues to be a pervasive problem in Thailand. Out of concern for reported human rights abuses, there has been a call from the international community to take a different approach from the government's 'zero tolerance'. This paper describes the adaptation of the Connect to Protect® coalition formation process from urban U.S. cities to three districts in northern Thailand's Chiang Mai province, aimed to reduce methamphetamine use by altering the risk environment. Project materials, including manuals and materials (e.g. key actor maps and research staff memos), were reviewed to describe partnering procedures and selection criteria. Potential community partners were identified from various government and community sectors with a focus on including representatives from health, police, district and sub-district government officials. Of the 64 potential partners approached, 59 agreed to join one of three district-level coalitions. Partner makeup included 25% from the health sector, 22% who were sub-district government officials and 10% were representatives from the police sector. Key partners necessary for endorsement of and commitment to the coalition work included district-level governors, police chiefs and hospital directors for each district. Initial coalition strategic planning has resulted in policies and programs to address school retention, youth development initiatives and establishment of a new drug treatment and rehabilitation clinic in addition to other developing interventions. Similarities in building coalitions, such as the need to strategically develop buy-in with key constituencies, as well as differences of whom and how partners were identified are explored.

Understanding variability in adolescent women's sexually transmitted infection-related perceptions and behaviors associated with main sex partners.

BACKGROUND: It is not well understood whether characteristics of adolescent main partnerships differ categorically from one relationship to the next or whether observed differences in sexually transmitted infection (STI)-related perceptions and sexual behaviors between main partnerships results from a failure to capture variability within adolescent main partnerships. The objective of this study was to examine the extent to which female adolescents' STI-related feelings, perceptions, and sexual behavior associated with main sex partners varied over the course of their relationship. METHODS: A cohort of adolescent women aged 16 to 19 years at baseline, recruited from health clinics or community venues, completed daily diaries on a Smartphone continuously for 18 months. Participants reported daily on their partner-specific feelings of closeness, trust, commitment, perceived risk for acquiring a sexually transmitted disease (PRSTD), perception of partner concurrency (PPC), and condom use for their main sexual partners. RESULTS: Relationships from 49 participants were used to examine variability over time in STI-related feelings, perceptions, and behavior. Overall, relationships were characterized by high levels of trust, closeness, and commitment and low levels of PPC, PRSTD, and condom use. However, for all but PRSTD, there was more variation (>50%) within than between relationships for each of these measures, although variability of PRSTD was high (47.1%). Residual variability for all perceptions and behaviors remained significant after controlling for trends over time. CONCLUSIONS: Diary data illustrate wide day-to-day fluctuations in feelings of intimacy, PPCs, PRSTDs, and condom use indicating that these are dynamic attributes of adolescent romantic relationships.

Identifying and characterizing places for the targeted control of heterosexual HIV transmission in urban areas.

Places with active HIV transmission may serve as key locations for targeted control. In 2008-2009, heterosexual sex partner venues in Baltimore, MD were identified using a three-phase process and characterized by the presence or absence of HIV cases. 1,594 participants aged 18-35 years were enrolled at 87 venues. The study yielded an overall HIV prevalence of 3.7 %; 42 % of venues had ≥1 case of HIV (i.e., HIV positive venues). In final age-adjusted models, HIV positive venues had 10 % more high HIV-risk sexual partnering (95 % CI 1.01, 1.19) and more than twice as much drug market activity (95 % CI 1.04, 6.46) compared to HIV negative venues. Commercial sex work, parenteral risk behavior and venue-level sex market activity were not significantly associated with HIV status of the venues. This study highlights characteristics of venues, such as drug market activity, that may be important in identifying places with active HIV transmission.

Factors affecting linkage to care and engagement in care for newly diagnosed HIV-positive adolescents within fifteen adolescent medicine clinics in the United States.

Early linkage to care and engagement in care are critical for initiation of medical interventions. However, over 50 % of newly diagnosed persons do not receive HIV-related care within 6 months of diagnosis. We evaluated a linkage to care and engagement in care initiative for HIV-positive adolescents in 15 U.S.-based clinics. Structural and client-level factors (e.g. demographic and behavioral characteristics, clinic staff and location) were evaluated as predictors of successful linkage and engagement. Within 32 months, 1,172/1,679 (69.8 %) of adolescents were linked to care of which 1,043/1,172 (89 %) were engaged in care. Only 62.1 % (1,043/1,679) of adolescents were linked and engaged in care. Linkage to care failure was attributed to adolescent, provider, and clinic-specific factors. Many adolescents provided incomplete data during the linkage process or failed to attend appointments, both associated with failure to linkage to care. Additional improvements in HIV care will require creative approaches to coordinated data sharing, as well as continued outreach services to support newly diagnosed adolescents.