A qualitative study evaluating COVID-19 vaccine hesitancy among individuals living in Mississippi

Background

COVID-19 vaccination rates are lower in the Southern United States compared to other regions. This study investigated COVID-19 vaccination hesitancy in Mississippi (MS) to identify preferences that may boost MS vaccination strategies in areas with poor vaccine uptake.

Methods

Qualitative interviews were completed between April 2021 and January 2022 with staff and patients at four Federally Qualified Health Centers in MS. Interviews included the following COVID-19 vaccine topics: willingness to be vaccinated, barriers and facilitators, and methods for providing vaccine information. Data were organized with NVivo software and analyzed using reflexive thematic analysis.

Results

Fifteen clinic staff and 49 patients were interviewed. Barriers to vaccine uptake included a lack of knowledge and understanding of how the vaccine worked, distrust of the government, fear of side effects, and social pressure to stay unvaccinated. Vaccination facilitators included its widespread accessibility, a desire to protect themselves and vulnerable populations, and a previous unpleasant COVID-19 illness experience. Participants stated that vaccine information should be provided by health organizations and familiar, respected community members.

Conclusions

Results identified barriers to vaccination, such as mistrust of the government and healthcare system, and facilitators like vaccination advocacy originating from congregations and religious leaders. These findings can inform future COVID-19 vaccination efforts to increase overall immunization rates in MS. Future research in other locations could further assess commonalities and differences in the barriers and facilitators to vaccination.

Social, Structural, Behavioral, and Clinical Barriers Influencing Pre-exposure Prophylaxis (PrEP) Use Among Young Black Men Who Have Sex with Men in the South: A Qualitative Update to a 2016 Study

Antiretroviral pre-exposure prophylaxis (PrEP) is highly effective in preventing HIV. Despite its promise, PrEP use is low, especially among young Black men who have sex with men (YBMSM). The prevalence of HIV in Mississippi (MS) is among the highest in the United States, with the bulk of new infections occurring amongst YBMSM living in Jackson, MS. We recruited 20 PrEP-eligible YBMSM and 10 clinic staff from MS health clinics between October 2021 and April 2022. Data were collected remotely using in-depth interviews and a brief survey, which lasted approximately 45-60 min. Interview content included PrEP knowledge/experiences, HIV risk perception, and PrEP use barriers and facilitators. Qualitative data were coded then organized using NVivo. Using thematic analysis methodology, data were assessed for current barriers to PrEP use. An array of barriers were identified by participants. Barriers included structural factors (cost of PrEP, lack of discreet clinics, time commitment, competing interests); social factors (unaware of HIV risk, stigma and homophobia, fear that partners would find out about PrEP use, not knowing anyone on PrEP); behavioral factors (sexual risk factors, denial, less priority for prevention vs treatment); and clinical factors (misunderstood side effects, fear PrEP won't work). Significant barriers to PrEP use among YBMSM stem from structural, social, behavioral, and clinical factors. These results will inform intervention efforts tailored to mitigate barriers and improve PrEP uptake among YBMSM in the southern United States.

Mapping Implementation Science with Expert Recommendations for Implementing Change (MIS-ERIC): Strategies to Improve PrEP Use among Black Cisgender Women Living in Mississippi

BACKGROUND

Black women are disproportionately affected by the HIV epidemic. Strategies to increase Black women's use of pre-exposure prophylaxis (PrEP) are needed.

METHODS

Interviews were conducted in Mississippi (MS) with Black, cisgender women at risk for HIV, and community healthcare clinic (CHC) staff who work directly with this population. Reflexive thematic analysis was used to identify barriers and select appropriate implementation strategies to increase PrEP care.

RESULTS

Twenty Black women and twelve CHC staff were interviewed. PrEP use barriers resulted from low HIV risk awareness, lack of PrEP knowledge, and structural and stigma-related barriers. Methods for PrEP education and motivation included normalizing PrEP in public communications, providing education at places where women congregate, and tailoring PrEP content with Black women as educators. The Expert Recommendations for Implementing Change (ERIC) project provides a way for implementation scientists to select strategies that are consistent within research and practice across studies. Strategies from the ERIC project were selected to address implementation barriers.

CONCLUSIONS

Tailoring PrEP implementation protocols to increase Black women's access, engagement, and adherence to PrEP is needed. This is one of the first implementation studies to incorporate these four implementation concepts into a single study: (1) implementation outcomes, (2) i-PARIHS, (3) ERIC's strategy list, and (4) operationalizing the strategies using the Proctor et al., guidelines. Results provide an in-depth comprehensive list of implementation strategies to increase PrEP uptake for Black women in MS.

The Role of Family Factors in the Outcomes of Court-Involved Youth

Court-involved youth (CIY) comprise a significant portion of the U.S. population and have a high prevalence of psychiatric illness and substance use. Youth delinquency has also been associated with family variables and parenting practices. However, it is not known which family factors are most relevant to behavioral outcomes in CIY mandated to outpatient mental health treatment. Self-report measures from 163 CIY (M = 15.19 years; 58.3% male) starting psychiatric care in two U.S. cities were utilized in a cross-sectional analysis to examine the association of parental monitoring and family functioning with the severity and variety of delinquent acts. Results demonstrate that parental monitoring is significantly associated with the delinquent behavior of CIY in mental health treatment, beyond that of psychiatric symptoms and substance use. Improved understanding of influential family factors can enhance tailoring of existing interventions to ensure that they are relevant to the needs of CIY, especially those in psychiatric treatment.

A Comparison of COVID-19 Vaccine and PrEP Hesitancy Among Individuals Living in Mississippi: A Qualitative Study

Mississippi (MS) trails behind other states in both pre-exposure prophylaxis (PrEP) and COVID-19 vaccine uptake. This study investigated similarities in willingness to receive the COVID-19 vaccine and use PrEP. Semi-structured interviews were conducted between April 2021 and January 2022 with 15 clinical staff and 49 PrEP-eligible patients living in MS. Reflexive thematic analysis was conducted. Overall, 51% of patients were on PrEP, and 67% received the COVID-19 vaccine. Among PrEP users, 64% had received the vaccine. Participants reported similar hesitations (efficacy, side effects, and no perceived risk) and reasons for use (health autonomy and protecting themselves and others) regarding PrEP and the COVID-19 vaccine. Taking PrEP did not increase the likelihood of getting the COVID-19 vaccine, thus engaging in one prevention behavior does not lead to engaging in other prevention behaviors. However, results indicated commonalities in hesitancy and motivators to utilize both preventive measures. Future prevention and implementation efforts can be informed by these commonalities.

Considerations for PrEP Implementation at Federally Qualified Health Centers in Mississippi: Perspectives From Staff and Patients

Pre-exposure prophylaxis (PrEP) uptake remains low in the southeastern United States ("the South"), likely owing to overlapping structural barriers, including the lack of nearby PrEP providers. Federally qualified health centers (FQHCs) are potential sites through which to expand PrEP availability in the South, and telemedicine is promising for these services. This study investigated considerations for PrEP implementation at FQHCs and the use of telemedicine through qualitative interviews with 19 FQHC staff and 17 PrEP-eligible patients in Mississippi. Results indicated that existing infrastructure and policies at FQHCs can support PrEP implementation and that additional needed resources include more education for providers and strategies to advertise PrEP services. Findings suggest that using telemedicine for PrEP can address some regional implementation barriers (e.g., transportation problems and confidentiality concerns) but may present new ones (e.g., concerns about patients performing home HIV/STI testing procedures). Results can inform future PrEP implementation efforts in the South.

Development of An Acceptance Based PrEP Intervention (ACTPrEP) to Engage Young Black MSM in the South Utilizing the Adaptome Model of Intervention Adaptation

Objectives

HIV disproportionately affects young Black men who have sex with men (YBMSM) in the Southern United States. Pre-exposure prophylaxis (PrEP) is an efficacious, biomedical approach to prevent HIV. While Mississippi (MS) has among the highest rates of new HIV infections, it also ranks among the top three states for unmet PrEP need. Thus, increasing engagement in PrEP care for YBMSM in MS is imperative. A potential method to improve psychological flexibility and promote PrEP uptake, explored by this study, is the incorporation of Acceptance and Commitment Therapy (ACT) into PrEP interventions. ACT is an evidence-based intervention used to treat a wide range of mental and physical illnesses.

Methods

Twenty PrEP-eligible YBMSM and ten clinic staff working with YBMSM in MS were surveyed and interviewed between October 2021 and April 2022. The brief survey covered PrEP structural barriers, PrEP stigma, and psychological flexibility. Interview topics included internal experiences related to PrEP, existing health behaviors, PrEP related personal values, and relevant constructs from the Adaptome Model of Intervention Adaptation (service setting, target audience, mode of delivery, and cultural adaptations). Qualitative data were coded based on ACT and the Adaptome model, organized using NVivo, then thematically analyzed.

Results

Patients identified side effects, costs, and taking a daily prescription as top barriers to taking PrEP. Staff reported the top barrier to PrEP for clients was concern others would believe they were living with HIV. Levels of psychological flexibility and inflexibility varied widely among participants. The resulting thematic categories derived from the interviews included 1) thoughts, emotions, associations, memories, and sensations (TEAMS) related to PrEP and HIV, 2) general health behaviors (existing coping techniques, views on medication, HIV/PrEP approach and avoidance), 3) values related to PrEP use (relationship values, health values, intimacy values, longevity values), and 4) Adaptome Model adaptations. These results informed the development of a new intervention, ACTPrEP.

Conclusions

Interview data organized by the Adaptome Model of Intervention Adaptation determined appropriate ACT-informed intervention components, content, intervention adaptations, and implementation strategies. Interventions informed by ACT that help YBMSM endure short-term discomfort related to PrEP by relating it to their values and long-term health goals are promising for increasing individuals' willingness to initiate and maintain PrEP care.

Dating Violence Prevention for Juvenile-Justice Involved Females: A Hybrid Trial

OBJECTIVE

The primary objective of this hybrid I clinical trial of Date SMART (Date Skills to Manage Aggression in Relationships for Teens) was to reduce adolescent dating violence (ADV) among juvenile-justice involved females over 1 year. Secondary objectives were to determine if the intervention reduced sexual risk behavior and delinquency. Last, we evaluate system buy-in vis à vis mandated referrals to the program.

METHODS

Participants were females, ages 14 to 18 (N = 240), involved in a family court in the Northeast United States. The Date SMART group intervention consisted of cognitive-behavioral skill building, and the knowledge-only comparison group consisted of psychoeducation regarding sexual health, ADV, mental health and substance use.

RESULTS

Court mandates to intervention were common (41%). Among those with ADV exposure, Date SMART participants reported fewer acts of physical and/or sexual ADV (rate ratio, 0.57; 95% confidence interval [CI], 0.33-0.99) and cyber ADV (rate ratio, 0.75; 95% CI, 0.58-0.96) at follow-up, relative to control. There were significant reductions in the number of vaginal and/or anal sex acts reported by Date SMART participants relative to control (rate ratio, 0.81; 95% CI 0.74-0.89). In the overall sample, within group reductions in some ADV behaviors and delinquency were observed in both conditions.

CONCLUSIONS

Date SMART was seamlessly integrated into the family court setting and received stakeholder buy-in. Although not superior to control as a primary prevention tool, Date SMART was effective in reducing physical and/or sexual ADV, and cyber ADV, as well as vaginal and/or anal sex acts, among females with ADV exposure over 1 year.

Impact of interventions for tuberculosis prevention and care in South Africa - a systematic review of mathematical modelling studies

BACKGROUND

Substantial additional efforts are needed to prevent, find and successfully treat tuberculosis (TB) in South Africa (SA). In thepast decade, an increasing body of mathematical modelling research has investigated the population-level impact of TB prevention and careinterventions. To date, this evidence has not been assessed in the SA context.

OBJECTIVE

To systematically review mathematical modelling studies that estimated the impact of interventions towards the World HealthOrganization's End TB Strategy targets for TB incidence, TB deaths and catastrophic costs due to TB in SA.

METHODS

We searched the PubMed, Web of Science and Scopus databases for studies that used transmission-dynamic models of TB in SAand reported on at least one of the End TB Strategy targets at population level. We described study populations, type of interventions andtheir target groups, and estimates of impact and other key findings. For studies of country-level interventions, we estimated average annualpercentage declines (AAPDs) in TB incidence and mortality attributable to the intervention.

RESULTS

We identified 29 studies that met our inclusion criteria, of which 7 modelled TB preventive interventions (vaccination,antiretroviral treatment (ART) for HIV, TB preventive treatment (TPT)), 12 considered interventions along the care cascade for TB(screening/case finding, reducing initial loss to follow-up, diagnostic and treatment interventions), and 10 modelled combinationsof preventive and care-cascade interventions. Only one study focused on reducing catastrophic costs due to TB. The highest impactof a single intervention was estimated in studies of TB vaccination, TPT among people living with HIV, and scale-up of ART. Forpreventive interventions, AAPDs for TB incidence varied between 0.06% and 7.07%, and for care-cascade interventions between 0.05%and 3.27%.

CONCLUSION

We describe a body of mathematical modelling research with a focus on TB prevention and care in SA. We found higherestimates of impact reported in studies of preventive interventions, highlighting the need to invest in TB prevention in SA. However, studyheterogeneity and inconsistent baseline scenarios limit the ability to compare impact estimates between studies. Combinations, rather thansingle interventions, are likely needed to reach the End TB Strategy targets in SA.

Acceptability and Comfort Regarding Remotely Delivered PrEP Services in Mississippi

Despite the prevalence of human immunodeficiency virus (HIV) in Mississippi, access to pre-exposure prophylaxis (PrEP) is mostly limited to urban areas. Remote PrEP care via telemedicine, HIV self-testing, and prescription mail delivery can improve care in underserved communities. This mixed methods study assessed the acceptability and feasibility of using remote PrEP care, compared to alternatives. This consisted of (1) a cross-sectional survey and (2) interviews. PrEP-eligible adults were recruited from community-based organizations across Mississippi while accessing HIV testing between December 2019 and May 2022. Those surveyed (n = 63) indicated the greatest comfort in receiving PrEP via mail delivery (m = 5.14) and telemedicine (m = 4.89) and least comfort at gyms (m = 3.92). Comfort significantly differed between mail delivery and gyms (F = 2.90; P < .01). Those interviewed (n = 26) expressed relatively high comfort with remote PrEP care citing enhanced accessibility, privacy, simplicity, and quality. Remote PrEP services were acceptable and feasible among our sample, thus, should be expanded in Mississippi to address unmet needs.

Impact of Homophobia and Racism on Comfort Receiving Pre-exposure Prophylaxis at Various Locations Among Black MSM in Mississippi

Pre-exposure prophylaxis (PrEP) is underutilized among Black men who have sex with men (BMSM) in the Southern United States. We assessed comfort receiving PrEP at various locations among 65 BMSM. Chi-square and t-tests explored associations between demographics, experienced homophobia and racism, and comfort receiving PrEP. BMSM with greater experienced homophobia were less comfortable at academically affiliated clinics [X²(2, N = 59) = 10.61, p = 0.01], CBOs [X²(3, N = 59) = 10.02, p = 0.02], and STI/HIV clinics [X²(3, N = 59) = 8.63, p = 0.04]. Those with greater experienced racism were more comfortable receiving PrEP by mail [X²(3, N = 61) = 9.40, p = 0.02]. Homophobia and racism influence preferences of BMSM for where and how they receive PREP care. Private modes of PrEP delivery and interventions targeting provider and organizational bias should be explored.

Family-Related Factors and HIV-Related Outcomes Among Black Young Men Who Have Sex with Men in Mississippi

Given their disproportionate HIV incidence, there is a critical need to identify factors related to HIV risk among Black young men who have sex with men (YMSM) in the southeastern United States. This study investigated the association of family factors and HIV-related outcomes among Black YMSM in Mississippi ages 14-20 (n = 72). Multivariable regression models evaluated associations of family factors and outcomes. Greater parent/child communication about sex was associated with fewer lifetime male sex partners and lower odds of lifetime anal sex. Greater parental monitoring was associated with greater likelihood of future condom use. Sexual orientation disclosure was associated with more lifetime male sex partners. Parental monitoring and parent/child communication about sex were protective, suggesting that family-based interventions are promising for HIV prevention among Black YMSM in Mississippi. Results also indicated that YMSM who are "out" to family are important to reach, and families could be useful in encouraging healthy behaviors.

A Review of Digital Interventions to Decrease Cannabis Use Among Patients With Comorbid Psychiatric Disorders

OBJECTIVE

Cannabis use disorder (CUD) is associated with an elevated risk for psychiatric disorders and symptoms, contributing to poor health outcomes and increased medical costs. Unfortunately, interventions that simultaneously address cannabis use and co-occurring psychiatric disorders are limited in availability. Targeted digital interventions to reduce cannabis use could be beneficial for patients with psychiatric disorders. Digital interventions could be easily disseminated and used in numerous clinical locations, including outpatient, inpatient, residential, and community psychiatric treatment settings.

METHODS

Literature on digital cannabis reduction interventions for persons with psychiatric disorders was examined between April 2021 and June 2021. Articles were obtained from PubMed and PsycINFO databases. English language randomized controlled trials (RCT), feasibility and acceptability studies, pilot studies, and published protocols were included.

RESULTS

There is significant evidence that digital interventions can effectively reduce cannabis use in general, non-clinical populations. However, there is less literature examining interventions for persons living with co-occurring psychiatric illness-most of which is tailored to patients living with chronic psychosis.

CONCLUSIONS

There is great need for accessible and tailored digital interventions for co-occurring CUD and psychiatric disorders.

Forty-eight Week Outcomes of a Site-Randomized Trial of Combined Cognitive Behavioral Therapy and Medication Management Algorithm for Treatment of Depression Among Youth with HIV in the United States

Supplemental Digital Content is Available in the Text.

Studies suggest that manualized, measurement-guided, depression treatment is more efficacious than usual care but impact can wane. Our study among youth with HIV (YWH), aged 12–24 years at US clinical research sites in the International Maternal Pediatric Adolescent AIDS Clinical Trials Network, found a significant reduction in depressive symptoms among YWH who received a manualized, measurement-guided treatment. This paper reports outcomes up to 24 weeks after the intervention.

Sexting and Behavioral Health in First-time Justice-Involved Adolescents

Objectives

We examined the prevalence of sexting, related motivations, demographics, and association with behavioral health problems among justice-involved adolescents.

Hypotheses

We hypothesized positive associations between sexting and sexual risk, substance use, delinquency, and mental health problems.

Methods

Participants were 307 community-supervised justice-involved adolescents with a first-time offense (Mage =14.50 years, 44.6% female) and their caregivers. Adolescents answered questions on technology use and sexting by sending, receiving, or forwarding sexually suggestive text messages and images (pictures or videos). They also completed measures of recent (past 4-month) sexual activity, unprotected sex, cigarette, alcohol, marijuana, and other drug use, and delinquency; current trauma symptoms, internalizing problems, and adaptive functioning.

Results

Prevalence of sexting were 37.7% (lifetime overall; 17.0% sent texts; 17.4% sent images) and 29.5% (past-year overall; 12.8% sent texts; 13.6% sent images). Sexts were commonly sent as presents to partners, in response to sexts received, or to have fun. "Sexters" were older than "non-sexters" and more likely to identify as lesbian, gay, bisexual, or questioning. Past-year sexting was significantly associated with recent sexual activity; unprotected sex; alcohol use and days of use; marijuana and other drug use; delinquency and variety of delinquent acts; and elevated trauma symptoms and internalizing problems.

Conclusions

Sexting is prevalent among adolescents with a first-time offense and co-occurs with multiple behavioral health needs. Intervention for this population may be informed by routinely assessing sexting in community settings. Familiarity with local reporting laws could help clinicians navigate the legal implications of sexting among adolescents with existing justice-system involvement.

Site-Randomized Controlled Trial of a Combined Cognitive Behavioral Therapy and a Medication Management Algorithm for Treatment of Depression Among Youth Living With HIV in the United States

BACKGROUND

Depression is frequent among youth living with HIV (YLWH). Studies suggest that manualized treatment guided by symptom measurement is more efficacious than usual care.

SETTING

This study evaluated manualized, measurement-guided depression treatment among YLWH, aged 12-24 years at 13 US sites of the International Maternal Pediatric Adolescent AIDS Clinical Trials Network.

METHODS

Using restricted randomization, sites were assigned to either a 24-week, combination cognitive behavioral therapy and medication management algorithm (COMB-R) tailored for YLWH or to enhanced standard of care, which provided standard psychotherapy and medication management. Eligibility included diagnosis of nonpsychotic depression and current depressive symptoms. Arm comparisons used t tests on site-level means.

RESULTS

Thirteen sites enrolled 156 YLWH, with a median of 13 participants per site (range 2-16). At baseline, there were no significant differences between arms on demographic factors, severity of depression, or HIV status. The average site-level participant characteristics were as follows: mean age of 21 years, 45% male, 61% Black, and 53% acquired HIV through perinatal transmission. At week 24, youth at COMB-R sites, compared with enhanced standard of care sites, reported significantly fewer depressive symptoms on the Quick Inventory for Depression Symptomatology Self-Report (QIDS-SR score 6.7 vs. 10.6, P = 0.01) and a greater proportion in remission (QIDS-SR score ≤ 5; 47.9% vs. 17.0%, P = 0.01). The site mean HIV viral load and CD4 T-cell level were not significantly different between arms at week 24.

CONCLUSIONS

A manualized, measurement-guided psychotherapy and medication management algorithm tailored for YLWH significantly reduced depressive symptoms compared with standard care at HIV clinics.

VOICES: An efficacious trauma-informed, gender-responsive cannabis use intervention for justice and school-referred girls with lifetime substance use history

BACKGROUND

Girls have unique developmental pathways to substance use and justice system involvement, warranting gender-responsive intervention. We tested the efficacy of VOICES (a 12-session, weekly trauma-informed, gender-responsive substance use intervention) in reducing substance use and HIV/STI risk behaviors among justice- and school-referred girls.

METHODS

Participants were 113 girls (M_age = 15.7 years, SD = 1.4; 12 % White, 19 % Black, 15 % multi-racial; 42 % Latinx) with a history of substance use referred from juvenile justice (29 %) and school systems (71 %). Study assessments were completed at baseline, 3-, 6- and 9-months follow-up. Primary outcomes included substance use and HIV/STI risk behaviors; secondary outcomes included psychiatric symptoms (including posttraumatic stress) and delinquent acts. We hypothesized that girls randomized to the VOICES (n = 51) versus GirlHealth (attention control; n = 62) condition would report reduced alcohol, cannabis and other substance use, HIV/STI risk behaviors, psychiatric symptoms, and delinquent acts.

RESULTS

Girls randomized to VOICES reported significantly less cannabis use over 9-month follow-up relative to the control condition (time by intervention, p < .01), but there were no between group differences over time in HIV/STI risk behavior. Girls in both conditions reported fewer psychiatric symptoms and delinquent acts over time.

CONCLUSIONS

Data support the use of a trauma-informed, gender-responsive intervention to reduce cannabis use among girls with a substance use history and legal involvement; reducing cannabis use in this population has implications for preventing future justice involvement and improving public health outcomes for girls and young women, who are at disproportionate health and legal risk relative to their male counterparts.

A Review of Interventions to Enhance HIV Medication Adherence

PURPOSE OF REVIEW

Adherence to antiretroviral treatment (ART) is crucial for the successful treatment of HIV. Unfortunately, it is estimated that 45% of persons living with HIV (PLWH) have poor adherence to ART. To provide health care professionals and PLWH with effective tools for supporting adherence, researchers have investigated the effectiveness of psychosocial interventions to enhance adherence to ART. In this paper, interventional studies, systematic reviews, and meta-analyses that examine ART adherence interventions for PLWH are reviewed.

RECENT FINDINGS

There is great variability among interventions in terms of quality, sample, measures, and outcome characteristics. Despite a diverse and wide-ranging assortment of ART adherence interventions, consistent lessons have been learned. Interventions that focus on individual and interpersonal factors have been effective for improving ART adherence; however, the improvement in adherence tends to be short-lived. Additionally, interventions are most successful when tailored to those at risk for poor adherence. Finally, theory-based interventions are more likely to be effective than non-theory-based interventions. A variety of individual-level psychological interventions have been shown to be effective in improving ART adherence in the short term. Digital and mobile interventions have the potential to improve dissemination and implementation of these evidence-based interventions and could be used to extend intervention effects. Future interventions that address issues of accessibility, inequality, structural and institutional barriers to ART adherence should also be tested and prioritized. Implementation science frameworks can be used to assess and address issues of accessibility and systematic barriers to care.

Cultural context matters: Testing the minority stress model among Chinese sexual minority men

Minority stress theory (e.g., Meyer, 2003b), a model for understanding mental health disparities affecting sexual minorities, has primarily been tested in Western samples yet has not been carefully applied to the experiences of sexual minorities in a global context, including in East Asian countries. Combining minority stress theory with considerations of Chinese culture, the current study tested the associations among norm conformity, distal minority stressor (enacted stigma), proximal minority stressors (sexual identity concerns and concealment), lesbian, gay, and bisexual (LGB) family support, and psychological distress among Chinese sexual minority men (n = 748). Structural equation modeling showed that sexual identity concerns mediated the associations of norm conformity, enacted stigma, and lower family support with concealment. Psychological distress was associated with enacted stigma and lower family support, but not with proximal stressors (sexual identity concerns and concealment). Alternative model testing found sexual identity acceptance concerns predicted psychological distress and mediated the associations of norm conformity and LGB family support with distress. Findings provide partial support for the minority stress model in a Chinese context and suggest the importance of incorporating cultural considerations into minority stress conceptualizations. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Factors associated with PrEP adherence among MSM living in Jackson, Mississippi

Understanding the determinants of pre-exposure prophylaxis (PrEP) adherence is integral to reducing HIV incidence in the United States, especially for those at highest risk. To this end, the present study explored demographic, psychosocial, and behavioral factors related to adherence among 43 Southern, predominately Black, men who have sex with men (MSM). During the study months, 46% of the sample reported being nonadherent to PrEP. Those with more sexual partners (p = .05), greater self-efficacy for taking PrEP (p = .03), and those who felt condoms were less important (p = .02), were more likely to be adherent to PrEP at six-month follow-up. Further interventions that consider perceived sexual risk, condom use, and adherence self-efficacy are needed to improve PrEP adherence among Southern MSM.

Predictors of cannabis use among first-time justice-involved youth: A cohort study

BACKGROUND

Justice-involved youth use cannabis at higher rates than their same-aged peers increasing likelihood of adverse behavioral health consequences and continued legal involvement. This study examined individual level predictors of early onset use cannabis use (<13 years of age) and cannabis use initiation in the 12 months following first court contact.

METHODS

Participants were 391 first-time justice-involved youth (56.9 % male; M_age = 14.6 years; 32.1 % White, 11.1 % Black, 14.7 % Other/Multi-racial, 42.2 % Latinx) and an involved caregiver (87.2 % female; M_age = 41.0 years). Baseline assessments captured individual level factors; cannabis use was assessed every four months post-baseline for 12 months. Primary analyses involved multivariable modified Poisson regressions and survival analysis.

RESULTS

In multivariable models, youth who reported lifetime cannabis use (n = 188, 48.1 %) were older, reported alcohol use and positive cannabis use expectancies. Greater self-control and self-concept were associated with lower likelihood of lifetime cannabis use. Youth who initiated cannabis during the 12-month follow-up (n = 30, 14.8 %) tended to be older, White/non-Latinx, and to report more psychiatric symptoms (posttraumatic stress, externalizing, internalizing, and affect dysregulation), delinquent behavior, lower levels of self-control, poorer self-concept, greater drug use intentions and positive cannabis expectancies. In the multivariable survival analysis, affect dysregulation, internalizing symptoms, and more positive cannabis expectancies remained independently and positively associated with cannabis initiation.

CONCLUSIONS

There is a critical and unique window of opportunity to prevent cannabis use initiation among first-time justice-involved youth. Research is needed to determine whether brief interventions that aim to modify expectancies about cannabis use reduce rates of cannabis initiation in this underserved population.

Significance of root hairs for plant performance under contrasting field conditions and water deficit

BACKGROUND AND AIMS

Previous laboratory studies have suggested selection for root hair traits in future crop breeding to improve resource use efficiency and stress tolerance. However, data on the interplay between root hairs and open-field systems, under contrasting soils and climate conditions, are limited. As such, this study aims to experimentally elucidate some of the impacts that root hairs have on plant performance on a field scale.

METHODS

A field experiment was set up in Scotland for two consecutive years, under contrasting climate conditions and different soil textures (i.e. clay loam vs. sandy loam). Five barley (Hordeum vulgare) genotypes exhibiting variation in root hair length and density were used in the study. Root hair length, density and rhizosheath weight were measured at several growth stages, as well as shoot biomass, plant water status, shoot phosphorus (P) accumulation and grain yield.

KEY RESULTS

Measurements of root hair density, length and its correlation with rhizosheath weight highlighted trait robustness in the field under variable environmental conditions, although significant variations were found between soil textures as the growing season progressed. Root hairs did not confer a notable advantage to barley under optimal conditions, but under soil water deficit root hairs enhanced plant water status and stress tolerance resulting in a less negative leaf water potential and lower leaf abscisic acid concentration, while promoting shoot P accumulation. Furthermore, the presence of root hairs did not decrease yield under optimal conditions, while root hairs enhanced yield stability under drought.

CONCLUSIONS

Selecting for beneficial root hair traits can enhance yield stability without diminishing yield potential, overcoming the breeder's dilemma of trying to simultaneously enhance both productivity and resilience. Therefore, the maintenance or enhancement of root hairs can represent a key trait for breeding the next generation of crops for improved drought tolerance in relation to climate change.

Motivators for Cannabis Use among Young Adults in Outpatient Psychiatric Care: A Qualitative Study

Cannabis use is prevalent among youth with mental illness, despite the increased risk of exacerbating psychiatric symptoms. The rapidly changing legality of cannabis has contributed to its normalization and decreased perceived risks. This study qualitatively gathered young adult psychiatric patients’ ( n=15) perspectives on cannabis to inform a use reduction intervention. NVivo12 was used to organize coded data and facilitate analysis. Motivations to use included viewing cannabis utilization as normalized, supported, and a safer alternative to psychiatric medications. Facilitators for decreasing use were cannabis’ inadequacy at long-term symptom relief, the negative psychiatric sequelae seen in other users, and moderation of intake. Recommendations for the intervention included avoiding overly critical content and providing behavioral skills to aid reduction while improving psychiatric symptoms. Young adults in psychiatric care have unique motivations for cannabis consumption and decreasing use, which should be targeted in future interventions.

Brief Report: HIV Testing and Risk Among Justice-Involved Youth

Justice-involved youth have a number of risk factors for HIV infection, including high rates of substance use, psychiatric comorbidities, and risky sexual behaviors. Although detained youth are likely to receive health care-which may include HIV testing-court-involved, non-incarcerated (CINI) youth may be unlikely to receive HIV testing services either before or during their justice involvement. However, the relationship between risk factors and HIV testing among CINI youth is largely unknown. We explored the association between HIV testing and factors commonly associated with both HIV testing and HIV risk among 173 CINI youth with identified behaviors that put them at risk for HIV acquisition. Only 15.6% of participants reported a lifetime history of HIV testing, despite high rates of sexual and substance use risk behaviors. Age (older), gender (female), sexual orientation (non-heterosexual), recent marijuana use, lifetime use of other drugs, history of a sexually transmitted infection, pap smear in the past year and history of mental health/substance use treatment were all significantly associated with lifetime HIV testing. The extremely low testing rates in this sample emphasize that the juvenile justice system outside of detention is not adequately addressing youths' needs related to HIV testing or ensuring access to testing services for youth at risk of contracting HIV. Results suggest that additional efforts are needed to connect justice-involved youth to healthcare more broadly and HIV testing in particular.

Latino STYLE: Preliminary Findings From an HIV Prevention RCT Among Latino Youth

OBJECTIVE

Latino STYLE is a family-centered, HIV-focused intervention (HIV) emphasizing cultural factors and parent-adolescent communication. We hypothesized that, compared with a general health promotion (HP) intervention, the HIV arm would improve caregiver and adolescent HIV knowledge, attitudes, parental monitoring, sexual communication, and family relationships after a 3-month postintervention period. This article reports on the short-term findings of the longer trial.

METHODS

A single-site, two-arm, parallel, family-based, randomized, controlled trial was conducted; eligible participants were Latino adolescents aged 14-17 and their primary caregiver. The study was conducted at the University of South Florida with 227 adolescent-caregiver dyads allocated to the HIV (n = 117) or HP (n = 110) intervention after completing a baseline assessment. Interim measures at 3-month follow-up included demographics, HIV knowledge, self-efficacy, parental monitoring, sexual communication, family relationships, and adolescent sexual behavior.

RESULTS

Adolescents in the HIV group reported small effects in parental permissiveness and the HP group reported small effects for family support. Caregivers in both groups reported decreases in all outcomes. Incidence of past 90-day sexual intercourse decreased in both treatment arms. Among those who were sexually active over the past 90 days, the number of sex acts decreased from baseline, particularly in the HIV group. The percentage of condom-protected sex acts increased in the HIV group and decreased in the HP group, but did not reach statistical significance.

CONCLUSIONS

The HIV Latino STYLE intervention was not efficacious in improving hypothesized outcomes over a 3-month period. However, exploratory analyses revealed moderate effects for decreases in adolescent sexual risk behavior, particularly in the HIV group.

Cultural context matters: Testing the minority stress model among Chinese sexual minority men

Minority stress theory (e.g., Meyer, 2003b), a model for understanding mental health disparities affecting sexual minorities, has primarily been tested in Western samples yet has not been carefully applied to the experiences of sexual minorities in a global context, including in East Asian countries. Combining minority stress theory with considerations of Chinese culture, the current study tested the associations among norm conformity, distal minority stressor (enacted stigma), proximal minority stressors (sexual identity concerns and concealment), lesbian, gay, and bisexual (LGB) family support, and psychological distress among Chinese sexual minority men (n = 748). Structural equation modeling showed that sexual identity concerns mediated the associations of norm conformity, enacted stigma, and lower family support with concealment. Psychological distress was associated with enacted stigma and lower family support, but not with proximal stressors (sexual identity concerns and concealment). Alternative model testing found sexual identity acceptance concerns predicted psychological distress and mediated the associations of norm conformity and LGB family support with distress. Findings provide partial support for the minority stress model in a Chinese context and suggest the importance of incorporating cultural considerations into minority stress conceptualizations. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

A Mobile Gaming Intervention for Persons on Pre-Exposure Prophylaxis: Protocol for Intervention Development and Randomized Controlled Trial

Background

In the United States, young minority men who have sex with men (MSM) are the most likely to become infected with HIV. Pre-exposure prophylaxis (PrEP) is an efficacious and promising prevention strategy. However, PrEP’s safety and effectiveness can be greatly compromised by suboptimal adherence to treatment. To maximize the positive impact of PrEP, it is necessary to combine its prescription with cost-effective behavioral interventions that promote adherence and decrease HIV risk behaviors. In this project, we developed a theoretically informed app/gaming intervention to engage young MSM in learning information, practicing behaviors, and improving motivation for HIV preventative behaviors and PrEP adherence.

Objective

The goal of this project was to develop and test a cutting-edge, engaging, and entertaining app/gaming intervention for improving adherence to PrEP and building HIV prevention knowledge, skills, and behavior.

Methods

This study was conducted in two phases. In the developmental phase, we conducted qualitative interviews with young MSM (n=20) to guide the development of the gaming intervention. In the randomized controlled trial, we tested the preliminary efficacy of the gaming intervention compared to a comparison condition among young MSM. Subjects were recruited from the University of Mississippi Medical Center HIV/STI testing clinics (n=60).

Results

Institutional review board approval was received in February 2015. Research activities began in June 2015 and are still ongoing.

Conclusions

This app/gaming intervention aimed to improve PrEP adherence and HIV preventative behaviors in young MSM. Engaging young MSM in learning information, practicing behaviors, and improving motivation for increased adherence to PrEP has the potential to decrease HIV seroconversion. It is important to develop interventions that are enjoyable, engaging, and easily incorporated into clinical settings.

Trial Registration

ClinicalTrials.gov RCT02611362; https://tinyurl.com/y65gkuwr

International Registered Report Identifier (IRRID)

DERR1-10.2196/18640

Adherence to HIV Care and Associated Health Functioning among Youth Living with HIV in Sub-Saharan Africa

Older adolescents and young adults (youth) living with HIV (YLH) in sub-Saharan Africa (SSA) are at high risk for poor HIV treatment adherence and associated negative health outcomes including viral nonsuppression. To describe this risk, we conducted a comprehensive review of studies involving YLH. Eligible studies compared youth adherence or adherence-related health functioning to older or younger samples, examined factors associated with adherence or health outcomes among YLH, or evaluated adherence interventions with YLH. Databases searched included MEDLINE, Web of Science, Global Health, CINAHL, Africa-Wide Information, PsycINFO, and the Cochrane Library. Of the 7054 articles found, 156 were reviewed and 130 were eligible. Across 16 adherence-related behaviors or health outcomes such as lost to follow-up, retention in care, antiretroviral use, CD4 count, viral suppression, and mortality, 73% of studies comparing YLH to other age groups (n = 106) found worse outcomes among YLH. In 22 studies, barriers and facilitators to adherence were identified, some unique to YLH (e.g., conflicting treatment expectations of providers) and some common to other age groups. Finally, of the eight adherence interventions with YLH reviewed, five showed evidence of being effective. Our findings suggest that YLH in SSA faces numerous obstacles to engaging in HIV treatment across a range of shifting social contexts. Accounting for this group's transition to treatment self-management, developmentally tailored and holistic interventions should be the focus of adherence promotion efforts.

Does Initiating Vaginal Sexual Intercourse During a Safer Sex Media Campaign Influence Life Satisfaction Among African American Adolescents?

PURPOSE

Addressing adolescent sexual risk behaviors in the STI/HIV prevention literature is well documented; however, intervention impacts on life satisfaction are relatively unexplored. This study is a secondary analysis of data (N = 1,658) from a randomized, multisite, multilevel safer sex media campaign (Project iMPPACS) analyzing life satisfaction across baseline and follow-up data collected from 2006 to 2008 among participants (mean age 15.08 years) who reported never having had vaginal sex at baseline (n = 787).

METHODS

Participants were separated into groups based on whether they reported having vaginal sex (yes/no) at baseline. Then taking into account the nested study design and controlling for confounders, a mixed model repeated measures analysis of variance assessed whether differences in mean total life satisfaction (LS) were associated across time in the media and nonmedia study conditions separately by gender.

RESULTS

A significant interaction between time and media condition was detected (p = .039) where mean total LS increased +.065 units from baseline (M = 5.364) to last contact in media cities and decreased -.084 units from baseline (M = 5.557) to last contact in nonmedia cities when controlling for the effect of initiating vaginal sex. No significant differences in LS at baseline were observed between media and nonmedia intervention cities. Results by gender suggest most positive change in LS was observed for females with mixed findings for males.

CONCLUSIONS

Although Project iMPPACS was not designed with the intent on improving participants' life satisfaction, results advance the LS literature by demonstrating a temporal sequence for sexual risk taking and LS over time.

The Behavioral Health Needs of First-Time Offending Justice-Involved Youth: Substance Use, Sexual Risk and Mental Health

This study examines substance use, emotional/behavioral symptoms and sexual risk among first-time offending, court-involved, non-incarcerated (FTO-CINI) youth. Youth and caregivers (N=423) completed tablet-based assessments. By time of first justice contact (average 14.5 years old), 49% used substances, 40% were sexually active and 33% reported both. Youth with co-occurring substance use and sexual risk had more emotional/behavioral symptoms; youth with delinquent offenses and females had greater co-occurring risk. Time of first offense is a critical period to intervene upon high rates of mental health need for those with co-occurring substance use and sexual risk to prevent poor health and legal outcomes.

Risk and protective factors for whoonga use among adolescents in South Africa

•

Adolescents are reporting recreational exposure and use of ARVs in South Africa.

•

Individual level risk factors increase risk for whoonga use or known use among adolescents.

•

Food insecurity has a slightly protective effect on whoonga use or known use among adolescents.

•

Surveillance studies are warranted to understand multilevel risk factors of whoonga.

Background

Antiretroviral therapy (ART) is publicly available in South Africa in response to the urgent need to address HIV and AIDS. Off-label use of ARV medication alone or in combination with other substances is known as “whoonga” and “nyaope” in South Africa. Diversion of ARVs for whoonga use is not well understood, especially among adolescents. This secondary analysis explores risk and protective factors for adolescent whoonga use in a community-based HIV endemic setting.

Methods

Data on whoonga use were derived from a baseline survey of N = 200 adolescents recruited for participation in a randomized controlled trail to reduce adolescent HIV risk behaviors and depression. Risk and protective factors for adolescent whoonga use were explored using an ecological systems framework using one-way ANOVAs, chi-squared tests and hierarchical regression.

Results

Individual level factors increased the odds of whoonga use or known use such as child age OR:1.22 (95% CI, 1.03–1.43), hazardous drug use OR:1.62 (95% CI, 1.02–2.59), and hazardous alcohol OR:1.80 (95% CI, 1.05–3.09). Food insecurity appears to have a slightly protective effect on the odds of whoonga use or reports of use among people adolescents knew OR:0.649 (95% CI, 0.541–0.779).

Conclusions

Larger epidemiological studies should expand the surveillance of hazardous alcohol use and illicit drug use, specifically for recreational use of prescription medication. Granular data is warranted to characterize the patters of use, especially among highly vulnerable populations. Future surveillance studies that explore these multi-level relationships are warranted to further understand this phenomenon among teens in South Africa.

An evaluation and review of English language pre-exposure prophylaxis websites and YouTube videos

Pre-exposure prophylaxis (PrEP) is a promising HIV prevention strategy in which antiretroviral medications are taken to prevent HIV infection. PrEP was approved as an HIV prevention method in the United States in 2012 for individuals aged 18 years and older. Since its approval, there has been a growing amount of online content about PrEP targeted to general, non-medical, audiences. However, this online information is under-studied and under-evaluated. Two raters catalogued and coded PrEP material written in the English language from 61 websites and 58 YouTube videos for educational content, credibility, usability, and interactivity. The online material was catalogued and searched for between September 2017 and April 2018. Online PrEP material showed deficiencies in each of these content areas, however, there is a significant amount of publicly accessible online content available about PrEP. This content could be packaged, used, and tested in a prevention intervention to improve PrEP uptake and engagement in care.

Parent Psychological Distress: A Moderator of Behavioral Health Intervention Outcomes among Justice-Involved Adolescents

We examined whether pre-existing parent psychological distress moderated juvenile offenders' substance use, sexual risk, and mental health outcomes in a randomized trial. Forty-seven parent-adolescent dyads received either Family-based Affect Management Intervention (FAMI) for adolescent substance use and HIV prevention or adolescent-only Health Promotion Intervention (HPI). Parents' self-reported distress at baseline significantly moderated adolescents' self-reported marijuana use and alcohol use but not other outcomes at 3 months postintervention, producing crossover interactions. FAMI outperformed HPI when parents reported high-level distress, whereas HPI outperformed FAMI when parents reported low-level distress. This finding that the relative efficacy of interventions depends on the severity of parent psychological distress could inform efforts to match substance-using, justice-involved adolescents with the intervention most likely to benefit them.

Individual and Relationship Characteristics of Adolescent Girls With Histories of Physical Dating Violence

The objective of this article is to examine the individual and relational characteristics of adolescent girls with a history of physical DV, as well as to utilize partner-specific, temporal data to explore links between these factors and recent or ongoing DV experiences. Participants were 109 high school girls (ages 14-17) identified as having a history of DV through a school-based screening procedure. Details regarding the timing of DV and links with specific dating partners were gathered using Timeline Followback (TLFB) interview methodology. At study entry, 30% endorsed clinical levels of depression symptoms and 89% reported delinquent behaviors. Forty-four percent reported vaginal intercourse in their lifetime and of those, 35% reported not using a condom at last sex. During the 90 days prior to study entry, 69% of youth reported having a romantic relationship and 58% of those youth reported physical/sexual violence. Data revealed that more physical/sexual violence was associated with longer relationship length, Wald χ²(2) = 1,142.63, p < .001. Furthermore, depressive symptoms, not delinquency, contributed significantly to recent DV experiences, even when relationship length was controlled. Our findings suggest that prevention programs for this population should teach participants how to quickly recognize unhealthy relationship characteristics, as violence severity increases with relationship length. Programs for adolescent girls should also address depressive symptoms, which are linked to DV severity when other risks are taken into account. Finally, the TLFB calendar method appears useful for gathering the temporal and partner-specific data needed to understand the complexity of dating relationships and violence experiences in this population.

Neighborhood Stress and Life Satisfaction: Is there a Relationship for African American Adolescents?

This study identified associations between perceived neighborhood stress and adolescents' perceptions of life satisfaction. African American adolescents aged 13-18 (n=1,658) from four matched, mid-sized cities in the northeastern and southeastern USA, completed a self-report questionnaire using an audio computer-assisted self-interview (ACASI). Analyses examined relationships between perceived neighborhood stress and perceived life satisfaction, while controlling for socioeconomic status (SES). Life satisfaction was found to be related to neighborhood stress for both males and females, with variability in neighborhood stress characteristics and in the magnitude of associations by gender. Further research should identify the particular characteristics of youth and specific aspects of adolescent life satisfaction associated with perceived neighborhood stress to develop community-based and culturally-sensitive quality of life improvement/health promotion programs.

Acceptability, Feasibility, and Preliminary Efficacy of a Resilience-Oriented Family Intervention to Prevent Adolescent HIV and Depression: A Pilot Randomized Controlled Trial

We tested the acceptability, feasibility, and preliminary efficacy of Our Family Our Future, a resilience-oriented intervention engaging families in prevention of adolescent HIV and depression. South African adolescents, 13-15 years of age, with mild depressive symptoms, were randomized to intervention or wait-list using parallel assignment in a single-blind trial. HIV risk behavior and depression were evaluated at baseline, 1, and 3 months. We examined intervention satisfaction, fidelity, trial retention, and preliminary efficacy. One hundred-ninety-six adolescent-parent dyads completed eligibility screening and baseline, and n = 73 dyads were randomized. All families ranked intervention quality as good or excellent. Over 90% were satisfied with content. Facilitators were adherent to intervention protocol. All families were retained in post-intervention assessments. Intervention recipients reported diminished depressive symptoms, inconsistent condom use, and sexual activity, as well as increased HIV testing. Our Family Our Future is highly acceptable and feasible and should be tested in a future efficacy trial.

HIV Testing Among Chinese Men Who Have Sex with Men: The Roles of HIV Knowledge, Online Social Life, and Sexual Identity Concerns

HIV testing is critical for timely care and controlling the HIV epidemic among men who have sex with men (MSM), particularly for regions with increasing infection rates such as China. This study investigated HIV testing and associated demographic, psychosocial, and risk behavior factors among internet-using Chinese MSM (n = 332). Most participants received HIV testing before (74.1%), which was associated with more HIV knowledge, online social life, and more frequent condomless anal sex. Among MSM who tested previously (n = 246), 48.4% reported regular HIV testing, which was associated with a greater online social life and less sexual identity concerns (internalized homonegativity and concealment motivation). Findings suggest a two-step approach to engage MSM who never tested for HIV and who do not undergo regular testing. Strategies to promote testing should enhance HIV knowledge, sex education, and online MSM community building. Interventions to increase acceptance and positivity of sexual identity are crucial to regular testing.

Can a Multilevel STI/HIV Prevention Strategy for High Risk African American Adolescents Improve Life Satisfaction?

Addressing adolescent sexual risk behaviors in the STI/HIV prevention literature is well documented; however, impacts from interventions on life satisfaction are relatively unexplored. This study examined data (n = 1658) from a randomized, multi-site, multi-level STI/HIV prevention intervention trial (Project iMPAACS) to determine whether increased protective and reduced sexual risk-taking behaviors associated with STI/HIV would also improve self-reported life satisfaction. Taking into account the nested study design and controlling for confounders, a mixed model ANOVA was performed where Total mean life satisfaction scores were analyzed at baseline and 3, 6, 12, and 18 months post-recruitment. Significance levels of 0.05 were used to determine significance and η 2 was used to assess effect size. We hypothesized that as intervention participants engaged in the intentional activity associated with increasing protective behaviors and reducing sexual risk-taking behaviors associated with STI/HIV, life satisfaction reports would also improve over the course of the intervention. A significant main effect for sex was detected (F = 5.19, p = .02, η 2 = .03), along with three interactions: between experimental condition and media intervention (F = 7.96, p = .005, η 2= .04); experimental condition, sex, and media intervention (F = 6.51, p = .01, η 2 = .04); and experimental condition, sex, assessment point, and media intervention (F = 3.23, p = .01, η 2 = .02). With the exception of the control condition, female life satisfaction reports improved from baseline assessments to 18-months post-recruitment, whereas male reports decreased. Project iMPPACS was not designed with the intent on improving participants' life satisfaction. However, study results suggest incorporating strategies to address subjective well-being into future adolescent STI/HIV risk-reduction interventions is beneficial for females and additional research is necessary for males.

Significance of root hairs at the field scale - modelling root water and phosphorus uptake under different field conditions

ABSTRACT

BACKGROUND AND AIMS

Root hairs play a significant role in phosphorus (P) extraction at the pore scale. However, their importance at the field scale remains poorly understood.

METHODS

This study uses a continuum model to explore the impact of root hairs on the large-scale uptake of P, comparing root hair influence under different agricultural scenarios. High vs low and constant vs decaying P concentrations down the soil profile are considered, along with early vs late precipitation scenarios.

RESULTS

Simulation results suggest root hairs accounted for 50% of total P uptake by plants. Furthermore, a delayed initiation time of precipitation potentially limits the P uptake rate by over 50% depending on the growth period. Despite the large differences in the uptake rate, changes in the soil P concentration in the domain due to root solute uptake remains marginal when considering a single growth season. However, over the duration of 6 years, simulation results showed that noticeable differences arise over time.

CONCLUSION

Root hairs are critical to P capture, with uptake efficiency potentially enhanced by coordinating irrigation with P application during earlier growth stages of crops.

Using Composite Scores to Summarize Adolescent Sexual Risk Behavior: Current State of the Science and Recommendations

Composite scores offer the advantage of summarizing across multiple sexual risk behaviors to both simplify results and better capture the influence of core contextual, interpersonal, and intrapersonal dynamics that affect multiple sexual risk behaviors. There is inconsistency in how researchers utilize composite scores with minimal guidance on the advantages and disadvantages of frequently used approaches. Strengths and weaknesses of each approach are discussed in the context of assessing adolescent sexual risk behavior. A latent variable model and three commonly used composites were applied to data combined across four clinical trials (n = 1322; 50% female). Findings suggested that the latent variable approach was limited due to minimal correlations among sexual risk behaviors, that choice of composite had minimal impact on cross-sectional results so long as there is sufficient variability in risk behavior in the sample, but composite choice could impact results from clinical trials particularly for subgroup analyses. There are unique challenges to creating composites of adolescent risk behavior, including the fluidity and infrequency of adolescent sexual relationships that result in many participants reporting no sexual behavior at any given assessment and a low correlation between the number of partners and condomless sex acts. These challenges impede application of data-driven approaches to defining sexual risk composites. Recommendations to improve consistency in reporting include: (1) reporting each type of risk behavior separately prior to forming a composite, (2) aggregating across assessments to increase the chance of observing sexual risk behaviors, and (3) continued work toward a unified definition of adolescent sexual risk behavior that can guide the development of appropriate measurement models.

Intervention Messaging About Pre-Exposure Prophylaxis Use Among Young, Black Sexual Minority Men

Approximately 1.1 million individuals in the United States are living with HIV/AIDS. HIV disproportionately affects young, black men who have sex with men (YBMSM). Recent biomedical advances, including the use of antiretroviral therapy as pre-exposure prophylaxis (PrEP), hold promise for preventing HIV infections. However, PrEP uptake remains slow among those most at-risk. To develop and test an intervention to address HIV disparities in YBMSM, we conducted qualitative interviews with 29 YBMSM from Jackson, Mississippi, to learn more about their views of PrEP. Twenty-nine PrEP-eligible YBMSM were enrolled and participated in either semistructured interviews or focus groups. They were asked about PrEP use, messaging, and promotion. Data were coded based on an iteratively developed coding scheme and entered into NVivo to facilitate thematic analysis. Our analysis identified the following three main themes: (1) the role of setting, context, and stigma in health care, (2) targeted PrEP messaging is further stigmatizing, and (3) recommendations for PrEP messaging and care. YBMSM in our sample felt highly stigmatized in their current environment and felt that PrEP messaging targeting YBMSM only enhanced their sense of marginalization. They concluded that broad and inclusive messaging would be just as relevant and cause less stigma. Our findings were somewhat surprising, as several prior studies benefited from using targeted materials to engage YBMSM in HIV prevention and PrEP uptake. The study's location may explain this difference in findings, which suggests the importance of considering local conditions and opinions when developing interventions for HIV prevention among minority populations.

Depressive symptoms as a longitudinal predictor of sexual risk behaviors among African-American adolescents

OBJECTIVE

Understanding individual level factors associated with sexual risk behaviors among African-American adolescents remains an important public health priority. The current secondary data analysis examined the longitudinal association between a baseline assessment of depressive symptoms and sexual risk behaviors reported 6 months later; the purpose was to determine whether the association of depressive symptoms to risky sex varies as a function of gender. A secondary aim was to examine self-efficacy for sex refusal and condom use assessed at a 3-month follow-up as mediators of the depressive symptoms-sexual risk relationship.

METHODS

The sample consisted of 782 sexually active African-American adolescents (Mage = 15.3 years, SD = 1.08; 54% female) recruited to participate in a sexual health intervention trial. Data analyses focused on vaginal sex, and outcomes included: (a) sexual activity with 2 or more partners in the previous 3 months; (b) the relative frequency of condom use in the previous 3 months; (c) noncondom use at last occasion of sex; and (d) positive sexually transmitted infection (STI) screening.

RESULTS

Depressive symptoms predicted sex with 2 more partners for female participants, but no other risk markers for the sample as a whole. However, there was a significant indirect effect of depressive symptoms on condomless sex via decreased condom use self-efficacy for both male and female adolescents.

CONCLUSIONS

These findings have important implications for HIV/STI prevention, in which behavioral interventions may benefit from modules that include a focus on the influence of mood on self-efficacy for safer sex practices. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Is the Brief Multidimensional Student's Life Satisfaction Scale Valid and Reliable for African American Adolescents?

BACKGROUND

Health promotion/education strive to promote healthful conditions that improve quality of life1 based on the perceptions of those whose lives are affected.2-4 Though health promotion/education might have instrumental value in reducing risks for premature morbidity and mortality, their ultimate value lies in contributions to quality of life.1 Life satisfaction (LS) has been defined as an individual's assessment of their quality of life based upon personal criteria5,6 and linked to adolescent health risk behaviors7,8 and developmental assets.9.

PURPOSE

We investigated the psychometrics of the Brief Multidimensional Students' Life Satisfaction Scale [BMSLSS] with an adolescent sample of African Americans (N=1,658) from four mid-sized cities in the United States (US). Reliability and validity of the BMSLSS has not been determined for samples of exclusively African American adolescents.

METHODS

Data analysis included calculating mean ratings, standard deviations and effect sizes (Cohen's d) and inspecting the scale's internal structure, reliability, and relationships to other variables.

RESULTS

Evidence of internal structure, internal consistency reliability, and hypothesized relationships to other variables for participants were determined.

TRANSLATION TO HEALTH EDUCATION PRACTICE

The BMSLSS is a useful indicator of LS for research and health education assessment purposes among African American adolescents where brevity of psychometric measures is imperative.

Predictors of viral suppression among youth living with HIV in the southern United States

Youth living with HIV (YLH) in the United States (U.S.) face significant problems with achieving viral suppression, especially in the South. To examine this issue, YLH with a detectable viral load (N = 61) were recruited from the southern U.S and assessed over 16 weeks for health and treatment factors. Participants were part of a smartphone-based intervention trial. Analyses focused on predictors of viral suppression controlling for intervention effects. Fifty-three percent achieved suppression. In univariate models, YLH who engaged in condomless sex four to 16 weeks into the study (odds ratio [OR] = 4.00; compared to those who did not) and self-reported ≥ 90% antiretroviral adherence in the first four weeks of the study (OR = 25.00; compared to youth with <90%) had a higher likelihood of suppression. Shifts in adherence-related social support (OR = 4.98) and appointments kept (OR = 2.72) were also associated with suppression. YLH endorsing illicit drug use had a lower likelihood of suppression (OR = 0.16; compared to those without use). Effects (except drug use) remained significant or approached significance in a multivariate model. Adherence promotion efforts should consider this population's adherence-related social support, drug use, and risk for sexually transmitted infections.

The Prospective Impact of Family Functioning and Parenting Practices on Court-Involved Youth's Substance Use and Delinquent Behavior

Court-involved youth exhibit high rates of psychiatric symptoms, substance use, and delinquency, yet little is known about the contributing roles of caregiver and family factors. The current study examined whether family functioning and parental monitoring mediate the relationship between caregiver and youth psychiatric symptoms (at first court contact) and youth substance use and delinquency (two years later). Participants were 400 first-time offending court-involved youth (M_age = 14.5 years; 57.3% male; 45.6% non-Latinx White, 42.0% Latinx) and an involved caregiver (M_age = 41.0 years; 87.2% female; 53.0% non-Latinx White, 33.8% Latinx). Structural equation modeling revealed that caregiver and youth psychiatric symptoms were prospectively associated with worse family functioning, which was in turn related to higher levels of youth delinquency and greater likelihood of substance use. The results support the notion of addressing the needs of justice-involved youth and families holistically rather than treating youth as "the problem" in isolation.

Project Date SMART: a Dating Violence (DV) and Sexual Risk Prevention Program for Adolescent Girls with Prior DV Exposure

This study assessed the initial feasibility, acceptability, and efficacy of an intervention aimed at reducing dating violence and sexual risk behavior in a sample of adolescent girls (ages 14-17) with prior exposure to physical dating violence (DV). One hundred and nine girls were randomly assigned to Date SMART (Skills to Manage Aggression in Relationships for Teens) or a Knowledge-only (KO) comparison group. Both intervention arms consisted of six, weekly 2-h sessions and one "booster" session 6 weeks later. Based on principles of cognitive behavioral therapy, the Date SMART intervention was designed to target common underlying skills deficits linked to both DV and sexual risk behavior in adolescent females: depression, self-regulation deficits, and interpersonal skills deficits. Assessments were administered at four time points (baseline, 3, 6, and 9 months). The Date SMART group was effective as reducing sexual DV involvement across the 9-month follow-up period. Both groups evidenced clinically meaningful reductions in physical, emotional, and digital DV involvement, total time in dating relationships, as well as reductions in depression. Findings indicate that delivering a DV and sexual risk prevention intervention to DV-affected adolescent girls is feasible and well-received. Furthermore, a skills-based approach that addresses the co-occurrence of DV and sexual risk behavior may be particularly useful for promoting reductions of sexual DV among high-risk adolescent girls. A future, large-scale trial with an inactive comparison condition is needed to evaluate the efficacy of Date SMART further.

TRIAL REGISTRATION

Clinical Trials, NCT01326195, and http://www.clinicaltrials.gov.

Problem Solving Reduces Sexual Risk Associated with Sensation Seeking, Substance Use, and Depressive Symptoms Among African-American Adolescents

OBJECTIVE

African-American adolescents experience higher rates of sexually transmitted infections (STIs) compared to same-age Caucasian peers. Substance use, sensation seeking, and depression have all been linked to risky sexual practices. Theory suggests that problem-solving skills may help to buffer against these risk factors.

METHOD

To test this hypothesis, we used data from African-American adolescents (N = 1018; M age = 16.7, SD = 1.1; 58% female) who participated in a prevention trial.

RESULTS

Nearly half of the sample (47%) reported lifetime marijuana use, while 13% reported drug use prior to most recent sexual encounter. Sexual sensation seeking was directly associated with drug use prior to sex (β = 1.13, b = 0.13,
SE = 0.02, p < .001) and lower problem-solving skills (β = -0.08, b = -0.06,
SE = 0.02, p = .01). Problem-solving skills were associated with drug use prior to sex (β = 0.92, b = -0.08, SE = 0.03, p = .004), such that those with greater problem-solving skills were less likely to report drug use prior to most recent sex. Lastly, problem solving skills mediated the association between sexual sensation seeking and drug use prior to sex, though the effect was small (β = 0.01, 95% CI: .001, .01).

CONCLUSIONS

Problem-solving skills can have a protective influence on risky behavior for adolescents. Future research might examine the utility of strengthening problem-solving skills in order to reduce STI/HIV risk among African American adolescents.

Moving Beyond Role-Play: Evaluating the Use of Virtual Reality to Teach Emotion Regulation for the Prevention of Adolescent Risk Behavior Within a Randomized Pilot Trial

OBJECTIVE

The purpose of the current pilot study was to evaluate the acceptability and preliminary impact of using immersive virtual reality environments (IVREs) paired with a brief emotion regulation and risk reduction intervention (ER + IVRE) relative to this same intervention content paired with role-plays (ER + RP).

METHODS

Eighty-five adolescents attending middle school (grades 6th-8th; ages 12-15 years) in an urban northeast city were recruited and randomized to ER + IVRE (n = 44) or ER + RP (n = 41) and had complete data. Data examining acceptability, feasibility, sexual knowledge and attitudes, and ER were collected at baseline and 3 months after intervention completion. Analyses of covariance controlling for baseline scores were used to evaluate study outcomes. Within and between intervention effect sizes were calculated with effect sizes ≥.20 considered meaningful.

RESULTS

At the 3-month follow-up assessment, several within intervention condition effect sizes were found to exceed d = 0.20 across the measured sexual attitudes and ER outcomes. Between intervention analyses found that adolescents randomized to ER + IVRE attended more intervention sessions, reported less difficulty accessing ER strategies (d = 0.46), and reported higher emotional self-efficacy (d = 0.20) at the 3-month follow-up relative to adolescents randomized to the ER + RP intervention.

CONCLUSIONS

This study provides preliminary evidence that using virtual reality environments to enhance ER skill building in risk situations was acceptable, feasible to deliver, and positively impacted ER abilities.

Evaluating the Role of Family Context Within a Randomized Adolescent HIV-Risk Prevention Trial

Project STYLE is a multi-site 3-arm RCT comparing family-based, adolescent-only, and general health promotion interventions with 721 adolescents in mental health treatment. This study reports 12-month outcomes for family context and sexual risk behaviors, and explores the role of baseline family context in modifying treatment response. Using the full sample, there were sustained benefits for parent-reported sexual communication (d = 0.28), and adolescent-reported parental monitoring (d = 0.24), with minimal differences in risk behaviors. Latent profile analysis identified four family context classes: struggling (n = 177), authoritative (n = 183), authoritarian (n = 175), and permissive (n = 181). The authoritarian and permissive classes were also distinguished by disagreement between parent and adolescent report of family context. Classes differed in terms of baseline mental health burden and baseline sexual risk behavior. Classes showed different patterns of treatment effects, with the struggling class showing consistent benefit for both family context and sexual risk. In contrast, the authoritarian class showed a mixed response for family context and increased sexual risk.