Healthy Living Project Team. Effects of a behavioral intervention to reduce risk of transmission among people living with HIV: the healthy living project randomized controlled study

How Do Psychosocial Interventions for Adolescents and Young People Living With HIV Improve Adherence and Viral Load? A Realist Review

PURPOSE

Psychosocial interventions have the potential to support adolescents and young people living with HIV (AYPLHIV) to achieve better HIV outcomes. However, more evidence is needed to understand which interventions are most effective, and the mechanisms driving how they work in practice.

METHODS

We used realist methodologies to generate statements based on evidence from intervention studies and linked evidence included in a systematic review of psychosocial interventions for AYPLHIV. Key data were extracted from available sources to generate cases, including context-mechanism-outcome pathways. Higher level themes were refined iteratively to create a mid-range theory of how these interventions may work.

RESULTS

From 26 resulting cases, 8 statements were crafted, grouped into 3 overarching categories, to describe how these interventions worked. Interventions were overall found to set off mechanisms to improve adherence when (1) responding to individual-level factors to support AYPLHIV (via incorporating agency and empowerment, personalized and/or contextualized approaches, and self-care skills); (2) tailoring delivery strategies to address specific needs (via diverse strategies, longer duration, and digital delivery); and (3) providing supportive resources (via peer and broader support, and structural support and integration into existing services).

DISCUSSION

A collection of diverse mechanisms may individually or collectively drive improved outcomes for AYPLHIV engaged in psychosocial interventions. Recommendations for integrating our findings into practice are discussed.

The Past, Present, and Future of PrEP implementation Among People Who Use Drugs

PURPOSE OF REVIEW

Recent HIV outbreaks among people who use drugs (PWUD) necessitate additional HIV prevention tools. Pre-exposure prophylaxis (PrEP) is highly efficacious yet uptake among PWUD remains exceedingly low. To address multilevel, complex barriers to PrEP use among PWUD, a range of intervention strategies are needed.

RECENT FINDINGS

The literature on interventions to optimize PrEP use among PWUD is nascent, comprising small pilots and demonstration projects in early phases of intervention development. Initial studies suggest that structural, healthcare, interpersonal, and individual-level interventions can improve PrEP use for PWUD, and a number of efficacy trials are underway. Future studies are needed to optimize the use of new PrEP modalities (e.g., injectable PrEP), simultaneously target multilevel challenges to PrEP use, and evaluate the integration of PrEP into other service settings and substance use treatment modalities.

Addressing HIV care, mental health and substance use among youth and young adults in the Bay Area: description of an intervention to improve information, motivation and behavioural skills

OBJECTIVE

Youth represent a population disparately impacted by the HIV epidemic. With most new HIV diagnoses occurring among adolescents and young adults, novel approaches to address this disparity are necessary. The objective of the current study was to describe the Youth to Telehealth and Text to Improve Engagement in Care (Y2TEC) intervention, which aims to fill this gap. The Y2TEC intervention (trial registration NCT03681145) offers an innovative approach to improve HIV treatment engagement among youth living with HIV by focusing on treatment barriers related to mental health and substance use. This allows for a holistic approach to providing culturally informed intervention strategies for this population.

PARTICIPANTS AND SETTING

The Y2TEC intervention was developed for youth with HIV in the large metropolitan area of the San Francisco Bay Area. The Y2TEC intervention was developed based on formative interdisciplinary research and is grounded in the information-motivation-behavioural skills model.

RESULTS

The intervention includes 12 sessions each lasting 20-30 minutes, which are delivered through videoconferencing and accompanying bidirectional text messaging. The intervention sessions are individualised, with session dosage in each major content area determined by participant's level of acuity.

CONCLUSIONS

The Y2TEC intervention is well positioned to help decrease HIV-related disparities in youth living with HIV through its innovative use of video-counselling technologies and an integrated focus on HIV, mental health and substance use.

Results of a Couples-Based Randomized Controlled Trial Aimed to Increase Testing for HIV

BACKGROUND

Although couples HIV testing and counseling (CHTC) is effective for facilitating mutual disclosure and linkage to HIV care, uptake remains low. Using a randomized controlled design, we tested the efficacy of a behavioral couples-based intervention aimed to increase CHTC.

SETTING

The Vulindlela district of KwaZulu-Natal, South Africa.

METHODS

Couples were recruited from the community (eg, markets and community events). Couples were excluded if mutual HIV serostatus disclosure had occurred. Both partners had to report being each other's primary partner and relationship length was at least 6 months. Assessments occurred at baseline, and 3, 6, and 9 months after intervention. Eligible couples attended a group session (3-4 hours) after which randomization occurred. Intervention couples additionally received: one couples-based group session followed by 4 couples' counseling sessions (1-2 hours). Intervention topics included communication skills, intimate partner violence, and HIV prevention. Our primary outcomes were CHTC and sexual risk behavior.

RESULTS

Overall, 334 couples were enrolled. Intervention couples were significantly more likely to have participated in CHTC [42% vs. 12% (P ≤ 0.001)]. In addition, their time to participate in CHTC was significantly shorter (logrank P ≤ 0.0001) (N = 332 couples). By group, 59% of those who tested HIV-positive in intervention and 40% of those who tested in control were new HIV diagnoses (P = 0.18). There were no group differences in unprotected sex.

CONCLUSIONS

Our intervention improved CHTC uptake-a vehicle for mutual serostatus disclosure and entrée into HIV treatment, both of which exert a significant public health impact on communities substantially burdened by HIV.

Ecological momentary assessments for self-monitoring and counseling to optimize methamphetamine treatment and sexual risk reduction outcomes among gay and bisexual men

This pilot study evaluated the use of smartphone ecological momentary assessments (EMA) for self-monitoring to optimize treatment outcomes among gay and bisexual men enrolled in an outpatient methamphetamine abuse treatment service program. Participants (N = 34) received EMA prompts five times daily to self-monitor their methamphetamine use, cravings, sexual risk behaviors, and associated triggers and affect throughout the 8-week treatment program. Participants were randomized into either a self-directed condition with access to a web-based EMA response visualization dashboard ("EMA + Dashboard"; n = 16); or, a counselor-supported condition incorporating weekly, 30-min, one-on-one counseling sessions to review and discuss the participant's self-monitoring data on the dashboard ("EMA + Dashboard + Counselor"; n = 18). Pilot participants were compared with historical controls (n = 102) as the reference group in multiple regression analyses to assess the impact of the two study conditions on the treatment service program outcomes. Study participants with weekly counseling (EMA + Dashboard + Counselor) exhibited significantly greater reductions in the number of condomless anal intercourse episodes than historical controls (IRR = 0.02, 95% CI [0.00, 0.30]), whereas the reduction was of similar magnitude as controls in the EMA + Dashboard self-directed condition (IRR = 0.23, 95% CI [0.02, 3.56]). Treatment effects were not significant for comparisons between the two study conditions and historical controls for self-reported methamphetamine use (EMA + Dashboard: IRR = 1.06, 95% CI [0.32, 3.49]; EMA + Dashboard+Counselor: IRR = 0.46, 95% CI [0.14, 1.49]), number of male partners (EMA + Dashboard: IRR = 1.02, 95% CI [0.39, 2.61]; EMA + Dashboard+Counselor: IRR = 0.54, 95% CI [0.20, 1.45]), and the likelihood of providing a urine sample that tested positive for methamphetamine metabolites (EMA + Dashboard: OR = 1.00, 95% CI [0.79, 1.25]; EMA + Dashboard + Counselor: OR = 0.93, 95% CI [0.74, 1.16]). The pilot study provides preliminary evidence that the treatment outcome for condomless anal intercourse can be improved through a combination of smartphone- and counselor-assisted self-monitoring.

Mobile Health Intervention to Reduce HIV Transmission: A Randomized Trial of Behaviorally Enhanced HIV Treatment as Prevention (B-TasP)

OBJECTIVES

We conducted a randomized clinical trial to test a mobile health behavioral intervention designed to enhance HIV treatment as prevention (B-TasP) by simultaneously increasing combination antiretroviral therapies (cART) adherence and improving the sexual health of people living with HIV.

METHODS

A cohort of sexually active men (n = 383) and women (n = 117) living with HIV were enrolled. Participants were baseline assessed and randomized to either (1) B-TasP adherence and sexual health intervention or (2) general health control intervention. Outcome measures included HIV RNA viral load, cART adherence monitored by unannounced pill counts, indicators of genital tract inflammation, and sexual behaviors assessed over 12 months.

RESULTS

Eighty-six percent of the cohort was retained for 12-month follow-up. The B-TasP intervention demonstrated significantly lower HIV RNA, OR = 0.56, P = 0.01, greater cART adherence, Wald χ = 33.9, P = 0.01, and fewer indicators of genital tract inflammation, Wald χ = 9.36, P = 0.05, over the follow-up period. Changes in sexual behavior varied, with the B-TasP intervention showing lower rates of substance use in sexual contexts, but higher rates of condomless sex with non-HIV positive partners occurred in the context of significantly greater beliefs that cART reduces HIV transmission.

CONCLUSIONS

Theory-based mobile health behavioral interventions can simultaneously improve cART adherence and sexual health in people living with HIV. Programs aimed to eliminate HIV transmission by reducing HIV infectiousness should be bundled with behavioral interventions to maximize their impact and increase their chances of success.

Major depression disorder trajectories and HIV disease progression: results from a 6-year outpatient clinic cohort

Contradictory evidence exists on the role of Major depression disorder (MDD) as a predictor of human immunodeficiency virus (HIV) disease progression, particularly regarding the effect of MDD presence versus pattern of illness. The objective of this study was to examine whether MDD status and pattern of illness differentially predict HIV disease progression. Retrospective cohort data from a six-year follow-up of HIV patients at an outpatient clinic were analyzed. MDD trajectories were identified by latent class growth analysis and generalized linear mixed models were used to examine their relation to low CD4+ T-lymphocyte counts (<200 cells/μL) during follow-up. Among 1,494 HIV patients, four MDD trajectory groups were identified: Low-Chronic, Moderate-Ascending, High-Episodic, and High-Chronic. Trajectory group membership was predicted by male sex (P = .04), minority race (P < .01), older age (P < .01) and low baseline CD4 count (P = .04). The High-Chronic group had lower odds of having a low CD4 count than the Low-Chronic group (adjusted Odds Ratio [aOR]: 0.63; 95%CI: 0.49-0.81) while the Moderate-Ascending group had higher odds (aOR: 1.53; 95%CI: 1.08-2.19). The odds of having a low CD4 count were higher among male (aOR: 1.25; 95%CI: 1.03-1.52), minority races (American Indian [aOR: 1.85; 95%CI: 1.38-2.49] and African Americans [aOR: 1.58; 95%CI: 1.33-1.87]), Hispanic (aOR: 1.52; 95%CI: 1.06-2.18), and divorced/separated patients (aOR: 1.62; 95%CI: 1.16-2.28) but decreased over time (P < .01) across trajectory groups. In this study, because MDD trajectories and CD4 counts were determined based on secondary data abstracted from electronic medical records, the results should be interpreted cautiously due to the potential for selection and misclassification bias. Overall, study findings suggest the pattern of MDD illness among HIV patients can be classified into clinically meaningful trajectory groups that appear to be programmed by known risk factors, and are useful for predicting HIV disease progression. Targeted interventions among at-risk patients may be critical to altering MDD illness patterns and curtailing HIV disease progression.

HIV/STI Prevention Interventions: A Systematic Review and Meta-analysis

Behavioral interventions can prevent the transmission of HIV and sexually transmitted infections. This systematic review and meta-analysis assesses the effectiveness and quality of available evidence of HIV prevention interventions for people living with HIV in high-income settings. Searches were conducted in MEDLINE, EMBASE, PsycINFO, and CDC Compendium of Effective Interventions. Interventions published between January, 1998 and September, 2015 were included. Quality of evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE). Forty-six articles and 63 datasets involving 14,096 individuals met inclusion criteria. Included articles were grouped by intervention type, comparison group and outcome. Few of these had high or moderate quality of evidence and statistically significant effects. One intervention type, group-level health education interventions, were effective in reducing HIV/STI incidence when compared to attention controls. A second intervention type, comprehensive risk counseling and services, was effective in reducing sexual risk behaviors when compared to both active and attention controls. All other intervention types showed no statistically significant effect or had low or very low quality of evidence. Given that the majority of interventions produced low or very low quality of evidence, researchers should commit to rigorous evaluation and high quality reporting of HIV intervention studies.

Non-specialist psychosocial support interventions for women living with HIV: A systematic review

Many women living with HIV experience a range of physical, social, and psychological challenges linked to their HIV status. Psychosocial support interventions may help women cope with these challenges and may allow women to make better decisions around their sexual and reproductive health (SRH), yet no reviews have summarized the evidence for the impact of such interventions on well-being and SRH decision-making among women living with HIV. We systematically reviewed the evidence for non-specialist delivered psychosocial support interventions for women living with HIV, which are particularly relevant in low-resource settings. Outcomes of interest included mental, emotional, social well-being and/or quality of life, common mental health disorders, and SRH decision-making. Searching was conducted through four electronic databases and secondary reference screening. Systematic methods were used for screening and data abstraction. Nine articles met the inclusion criteria, showing positive or mixed results for well-being and depressive symptoms indicators. No studies reported on SRH decision-making outcomes. The available evidence suggests that psychosocial support interventions may improve self-esteem, coping and social support, and reduce depression, stress, and perceived stigma. However, evidence is mixed. Most studies placed greater emphasis on instrumental health outcomes to prevent HIV transmission than on the intrinsic well-being and SRH of women living with HIV. Many interventions included women living with HIV in their design and implementation. More research is required to understand the most effective interventions, and their effect on sexual and reproductive health and rights.

Critical Review: When the Party is Over: A Systematic Review of Behavioral Interventions for Substance-Using Men Who Have Sex with Men

Because problematic patterns of alcohol and other substance use are prevalent drivers of the HIV/AIDS epidemic, comprehensive interventions are needed for substance-using men who have sex with men (SUMSM). We conducted a systematic review of 12 randomized controlled trials (RCTs) of behavioral interventions for reducing condomless anal intercourse (CAI) in SUMSM. Three RCTs observed that cognitive behavioral or motivational interviewing interventions achieved a 24% to 40% decrease in CAI. Interventions also tended to demonstrate greater efficacy for reducing CAI and substance use among those who had lower severity of substance use disorder symptoms. Although behavioral interventions for SUMSM are one potentially important component of biobehavioral HIV/AIDS prevention, further research is needed to examine whether integrative approaches that cultivate resilience and target co-occurring syndemic conditions demonstrate greater efficacy. Multilevel intervention approaches are also needed to optimize the effectiveness of pre-exposure prophylaxis and HIV treatment as prevention with SUMSM.

Feasibility of an Emotion Regulation Intervention to Improve Mental Health and Reduce HIV Transmission Risk Behaviors for HIV-Positive Gay and Bisexual Men with Sexual Compulsivity

Gay and bisexual men (GBM) report high rates of sexual compulsivity (SC), yet no empirically based treatments exist. An intervention based on the Unified Protocol for the Transdiagnostic Treatment of Emotional Disorders was pilot tested in a sample of 13 HIV-positive GBM with SC. Participants completed a baseline interview, and were offered up to ten intervention sessions. Of those, 11 completed a 3-month follow-up assessment. Despite problems with session attendance (only 4 men completed all 10 sessions), improvements were observed in all psychological outcomes, including SC, depression, and anxiety. Decreases were observed in drug use and HIV risk. The Unified Protocol may be useful in improving the health of HIV-positive GBM, however challenges with session attendance must be addressed. Future work should consider if fewer sessions produce similar results, whether barriers to attending all sessions could be alleviated, and how the intervention would perform compared to treatments.

Development and effectiveness of a mobile phone application conducting health behavioral intervention among men who have sex with men, a randomized controlled trial: study protocol

BACKGROUND

Behavioral intervention is a key approach to HIV prevention among men who have sex with men (MSM). Widespread use of mobile phones provide us with novel opportunities to decrease HIV infection and transmission of MSM. The objective of the study was to design and develop a mobile phone application (app) aims to conduct behavioral intervention to MSM and to evaluate the efficacy of the app-based intervention compared to usual care, to analyze cost-effectiveness and mechanism of the intervention.

METHODS

This study involves 2 phases, phase 1 use qualitative method and phase 2 is a randomized controlled trial lasting for 18 months, they will be conducted in Chagnsha, Hunan Province, China. Phase 1 is to design and develop the app, procedures including retrieval of domestic apps related to prevention and treatment about HIV and sexually transmitted diseases (HIV/STDs), personal interviews with MSM about preferences and functional needs of the HIV prevention app, multidisciplinary experts focused group discussions of the app, software engineers' development and users test of the app will be performed. In phase 2, we will recruit 800 MSM by cooperating with the local center of disease control and prevention and nongovernmental organizations, and divide them into intervention and control group evenly. Intervention group participants will receive app-based HIV prevention. Control group participants will be provided with usual care including HIV/STDs knowledge brochure and free voluntary counseling services. Data will be collected at baseline, 6, 12 and 18 months since subject's participation. Effectiveness of the intervention includes HIV/STDs infection rates, adherence to regularly HIV testing, sexual risk behavior, consistent condom use and relative risk of HIV infection. Cost-effectiveness will be analyzed by decision-analytic modeling, and mechanism analysis of this app-based intervention will be performed by path analysis.

DISCUSSION

This will be the first study of its kind in China to develop an app and implement app-based HIV prevention intervention among MSM. It is of great potential to determine whether app-based intervention is a cost-effective way to decrease HIV infection among MSM and explore intervention mechanism with an accurate method.

TRIAL REGISTRATION

Chinese Clinical Trial Register ( ChiCTR-IOR-15006724 ). Registered 10 July 2015.

Behavioral interventions to promote condom use among women living with HIV: a systematic review update

Behavioral interventions have been essential components of HIV prevention approaches, especially those aimed to promote safe sexual practices. We conducted a comprehensive literature search without language restrictions between 1980 and July 2014 to identify randomized controlled trials or controlled studies investigating behavioral interventions which: included women living with HIV; focused on condom use promotion; presented/analyzed outcomes by gender; used a 3-month follow-up or more; and considered at least one HIV-related behavioral or biological outcome. Eight studies comprising a total of 1,355 women living with HIV were included in the meta-analyses, and 13 studies were qualitatively described. When compared to standard care or minimal support intervention, behavioral interventions did not demonstrate an effect on increasing consistent condom use at the 3-month follow-up (RR = 0.92; 95%CI: 0.73, 1.16; p = 0.48), 6-month follow-up (RR = 1.13; 95%CI: 0.96, 1.34; p = 0.15), and 12-month follow-up (RR = 0.91; 95%CI: 0.77, 1.08; p = 0.30). Behavioral interventions also failed to reach positive effect in reduction of unprotected sexual intercourse at 6-months (MD = -1.80; 95%CI: -4.21, 0.62; p = 0.14) and 12-months follow-up (MD = -1.39; 95%CI: -2.29, 0.21; p = 0.09). These findings should be interpreted with caution since they are based on a few small trials. New researches are needed to assess the potential gains from a combination of interventions that promote safe sexual behavior with a harm reduction and gender approach, particularly in developing countries where HIV infection rates remain high.

Behavioral and Other Characteristics Associated with HIV Viral Load in an Outpatient Clinic

Persons living with HIV (PLWH) who are engaged in care, yet not virally suppressed, represent a risk for transmission and opportunity for risk reduction interventions. This study describes characteristics of an outpatient clinic cohort of PLWH by laboratory confirmed viral suppression status and examines associations with demographics and sexual and drug use behaviors gathered through questionnaire. From a sample of 500 clinic patients, 438 were prescribed antiretroviral treatment (ART) and 62 were not. Among the 438 on ART, 72 (16.4%) were not virally suppressed at the most recent lab draw. Compared to individuals with a suppressed viral load, those that were unsuppressed were more likely to: be black (79.2% vs. 64.2%; p = 0.014); earn below $25,000/year (88.9% vs. 65.0%; p < 0.001); be of a younger age (47.8 vs. 50.0 mean years; p = 0.009); be on opiate substitution (14.1% vs. 6.3%; p = 0.023); and acknowledge poly-substance (38.9% vs. 24.4%; p = 0.012) and excessive alcohol use (13.9% vs. 6.0%; p = 0.019). Conversely, a smaller proportion of those with an unsuppressed viral load had multiple sex partners in the previous 30 days (39.8% vs. 58.5%; p = 0.003). In multivariable regression of those on ART, the prevalence of an unsuppressed viral load was 3% lower with each increasing year of age (aPR: 0.97; 95% CI: 0.95, 0.99) and 47% lower with income over $25,000/year (aPR: 0.33; 95% CI: 0.16, 0.70). In a separate analysis of all 500 subjects, ART was less frequently prescribed to blacks compared to whites, heterosexuals, those with lower education and income, and persons with active substance use. Findings confirm that a large proportion of PLWH and engaged in care were not virally suppressed and continued behaviors that risk transmission, indicating the need for screening, prevention counseling and access to ancillary services to lower the incidence of HIV infections.

Social Desirability Response Bias and Other Factors That May Influence Self-Reports of Substance Use and HIV Risk Behaviors: A Qualitative Study of Drug Users in Vietnam

The accuracy of self-report data may be marred by a range of cognitive and motivational biases, including social desirability response bias. The current study used qualitative interviews to examine self-report response biases among participants in a large randomized clinical trial in Vietnam. A sample of study participants was reinterviewed. The vast majority reported being truthful and emphasized the importance of rapport with the study staff for achieving veridical data. However, some stated that rapport may lead to under reporting of risk behaviors in order not to disappoint study staff. Other factors that appeared to influence accuracy of self-reports include fear that the information may be divulged, desire to enroll in the study, length of the survey, and memory. There are several methods that can be employed to reduce response biases, and future studies should systematically address response bias and include methods to assess whether approaches and survey items are effective in improving accuracy of self-report data.

Screening for acute HIV infection in community-based settings: Cost-effectiveness and impact on transmissions

OBJECTIVES

To determine cost-effectiveness of three community-based acute HIV infection (AHI) testing algorithms compared to HIV antibody testing alone by focusing on the potential of averting new infections occurring within a one-year time horizon among men who have sex with men (MSM).

METHODS

Data sources for model parameters included actual cost and prevalence data derived from a community-based AHI screening program in San Diego, and published studies. Main outcome measure was costs per infection averted (IA). The lower end of the cost range of discounted lifetime costs of an HIV infection (i.e. $236,948) was used for defining cost-effectiveness.

RESULTS

The most sensitive algorithm for AHI detection, which was based on HIV nucleic acid amplification testing, was estimated to prevent between 5 and 45 transmissions, with simulated costs per infection averted between $965 and $141,256 when compared to HIV antibody testing alone.

CONCLUSION

AHI testing was cost-effective in preventing new HIV infections among at risk MSM in San Diego, and also among other MSM populations with similar HIV prevalence but lower proportions of AHI diagnoses. These results indicate that community-based AHI testing among MSM in the United States can pay for itself over the long run.

Association of Internalized and Social Network Level HIV Stigma With High-Risk Condomless Sex Among HIV-Positive African American Men

We examined whether internalized HIV stigma and perceived HIV stigma from social network members (alters), including the most popular and most similar alter, predicted condomless intercourse with negative or unknown HIV status partners among 125 African American HIV-positive men. In a prospective, observational study, participants were administered surveys at baseline and months 6 and 12, with measures including sexual behavior, internalized HIV stigma, and an egocentric social network assessment that included several measures of perceived HIV stigma among alters. In longitudinal multivariable models comparing the relative predictive value of internalized stigma versus various measures of alter stigma, significant predictors of having had condomless intercourse included greater internalized HIV stigma (in all models), the perception that a popular (well-connected) alter or alter most like the participant agrees with an HIV stigma belief, and the interaction of network density with having any alter that agrees with a stigma belief. The interaction indicated that the protective effect of greater density (connectedness between alters) in terms of reduced risk behavior dissipated in the presence of perceived alter stigma. These findings call for interventions that help people living with HIV to cope with their diagnosis and reduce stigma, and inform the targets of social network-based and peer-driven HIV prevention interventions.

Drug use and emotional distress differentiate unstably- versus stably-housed adults living with HIV who engage in unprotected sex

Among adults living with HIV, unstable housing is a barrier to health. Stably- and unstably-housed adults living with HIV were assessed for over 25 months. At baseline, unstably-housed adults living with HIV had a more recent HIV diagnosis, higher viral loads, worse physical and mental health, lower rates of antiretroviral therapy use and insurance coverage, and higher rates of hard drug use than stably-housed adults living with HIV. At follow-up, the health of both groups was similar, but unstably-housed adults living with HIV reported significantly more hard drug use and mental health symptoms when compared to the stably-housed adults living with HIV. Drug and mental health risks decreased for both groups, but decreases in unprotected sex were greater among unstably-housed adults living with HIV.

Cost Effectiveness of HIV Prevention Interventions in the U.S

INTRODUCTION

The purpose of this study was to assess and compare the cost effectiveness of current HIV prevention interventions in the U.S. using a consistent, standardized methodology.

METHODS

The cost effectiveness of common and emerging HIV biomedical and behavioral prevention interventions as delivered to men who have sex with men, injection drug users, and sexually active heterosexuals was estimated. Data on program costs, intervention efficacy, risk behaviors, and per contact transmission probabilities were collected from peer-reviewed papers and health department reports. These data were combined with 2010 national HIV incidence and prevalence surveillance data in a Bernoulli process model to estimate the reduced annual risk of HIV transmission or acquisition associated with these interventions. The cost per prevented case of HIV and the cost per saved quality-adjusted life year were then calculated. Analyses were conducted between 2014 and 2015.

RESULTS

Interventions to diagnose HIV and provide ongoing care and treatment had the lowest cost per prevented case. Among interventions targeted at specific risk groups, interventions for men who have sex with men were the most cost effective. The least cost-effective interventions typically addressed people at risk of acquiring HIV rather than those at risk of transmitting the disease.

CONCLUSIONS

HIV prevention interventions targeted at high-risk populations, those associated with the care continuum, and those that reduce the transmission risk of HIV-infected people are typically the most cost effective. Decision makers can consider these results in planning an efficient allocation of HIV prevention resources.

Effects of integrated interventions on transmission risk and care continuum outcomes in persons living with HIV: meta-analysis, 1996-2014

BACKGROUND

Reducing HIV infection and improving outcomes along the continuum of HIV care are high priorities of the US National HIV/AIDS strategy. Interventions that target multiple problem behaviors simultaneously in an integrated approach (referred to as integrated interventions) may improve prevention and care outcomes of persons living with HIV (PLWH). This systematic review and meta-analysis examines the effects of integrated interventions.

METHODS

A systematic review, including both electronic and hand searches, was conducted to identify randomized controlled trials (RCTs) published between 1996 and 2014 that were designed to target at least two of the following behaviors among PLWH: HIV transmission risk behaviors, HIV care engagement, and medication adherence. Effect sizes were meta-analyzed using random-effects models.

RESULTS

Fifteen RCTs met the inclusion criteria. Integrated interventions significantly reduced sex without condoms [odds ratio (OR) = 0.74, 95% confidence interval (CI) = 0.59, 0.94, P = 0.013, 13 effect sizes] and had marginally significant effects on improving medication adherence behaviors (OR = 1.35, 95% CI = 0.98, 1.85, P = 0.063, 12 effect sizes) and undetectable viral load (OR = 1.46, 95% CI = 0.93, 2.27, P = 0.098, seven effect sizes). Significant intervention effects on at least two outcomes were seen in RCTs tailored to individual needs, delivered one on one, or in settings wherein PLWH received services or care.

CONCLUSION

Integrated interventions produced some favorable prevention and care continuum outcomes in PLWH. How to incorporate integrated interventions with other combination HIV prevention strategies to reach the optimal impact requires further research.

The cost and intensity of behavioral interventions to promote HIV treatment for prevention among HIV-positive men who have sex with men

Recently, behavioral prevention interventions for HIV have been criticized as being ineffective, costly, or inefficient. In this commentary, using HIV-positive men who have sex with men (MSM) as an illustrative high-risk population, we argue that the opposite is true-that behavioral interventions for HIV prevention, if implemented with the populations who need them, are affordable and critical for future prevention efforts. We base this argument on recent evidence showing that (1) adherence to antiretroviral treatment (ART) for prevention purposes is necessary to suppress HIV replication and reduce transmissibility, (2) individuals living with HIV have multiple psychosocial concerns that impact self-care and moderate the potential effectiveness of health behavior interventions, and (3) intensive interventions targeting both concerns together (psychosocial and HIV care) can show clinically significant improvement. We follow by comparing the cost of these types of interventions to the cost of standard clinical treatment for HIV with ART and demonstrate a cost-savings of potential intensive behavioral interventions for, in this case, HIV-positive MSM who have uncontrolled virus. Keeping this evidence in mind, we conclude that individual intervention must remain a mainstay of HIV prevention for certain critical populations.

Smartphone self-monitoring to support self-management among people living with HIV: perceived benefits and theory of change from a mixed-methods randomized pilot study

BACKGROUND

Self-monitoring by mobile phone applications offers new opportunities to engage patients in self-management. Self-monitoring has not been examined thoroughly as a self-directed intervention strategy for self-management of multiple behaviors and states by people living with HIV (PLH).

METHODS

PLH (n = 50), primarily African American and Latino, were recruited from 2 AIDS services organizations and randomly assigned to daily smartphone (n = 34) or biweekly Web-survey only (n = 16) self-monitoring for 6 weeks. Smartphone self-monitoring included responding to brief surveys on medication adherence, mental health, substance use, and sexual risk behaviors, and brief text diaries on stressful events. Qualitative analyses examine biweekly open-ended user-experience interviews regarding perceived benefits and barriers of self-monitoring, and to elaborate a theoretical model for potential efficacy of self-monitoring to support self-management for multiple domains.

RESULTS

Self-monitoring functions include reflection for self-awareness, cues to action (reminders), reinforcements from self-tracking, and their potential effects on risk perceptions, motivations, skills, and behavioral activation states. Participants also reported therapeutic benefits related to self-expression for catharsis, nonjudgmental disclosure, and in-the-moment support. About one-third of participants reported that surveys were too long, frequent, or tedious. Some smartphone group participants suggested that daily self-monitoring was more beneficial than biweekly due to frequency and in-the-moment availability. About twice as many daily self-monitoring group participants reported increased awareness and behavior change support from self-monitoring compared with biweekly Web-survey only participants.

CONCLUSIONS

Self-monitoring is a potentially efficacious disruptive innovation for supporting self-management by PLH and for complementing other interventions, but more research is needed to confirm efficacy, adoption, and sustainability.

Effects of a Community-Based HIV Risk Reduction Intervention Among HIV-Positive Individuals: Results of a Quasi-Experimental Study in Nepal

We evaluated the efficacy of a sexual risk reduction intervention utilizing protection motivation and social cognitive theories to address knowledge, threat and coping appraisals, and condom use intentions among HIV-positive individuals in Nepal. Using a quasi-experimental research design, we assigned 277 participants to intervention (n=146) and control (n=131) groups. The intervention group received six sessions on sexual risk reduction strategies and the control group six sessions on medication adherence, smoking, and mental health. Data were collected at baseline and immediately after the intervention. Results indicate that the sexual risk reduction intervention produced a significant increase in HIV transmission knowledge, perceived threat and coping appraisals, and intentions to use condoms with regular, HIV-positive, and HIV-negative partners. The positive effects of the intervention remained significant after adjusting for baseline scores and other potential confounders. In conclusion, our theory-based sexual risk reduction intervention was effective in improving HIV transmission knowledge, perceived threat and coping appraisals, and condom use intentions. Further studies are needed to evaluate the long-term efficacy of the intervention in increasing protection motivation and maintaining preventive behaviors.

Behavioral Interventions to Reduce Sexual Risk Behavior in Adults with HIV/AIDS Receiving HIV Care: A Systematic Review

Regular interactions with people living with HIV/AIDS (PLWHA) who are receiving care provide caregivers opportunities to deliver interventions to reduce HIV-related risks. We conducted a systematic review of behavioral interventions for PLWHA (provided at individual level by caregivers at HIV care settings) to determine their efficacy in reducing sexual risk behavior. Conference websites and biomedical literature databases were searched for studies from 1981 to 2013. Randomized and quasi-randomized controlled trials (with standard-of-care control groups), considering at least one of a list of HIV-related behavioral or biological outcomes in PLWHA aged ≥18 receiving HIV care with at least 3-month follow-up were included. No language or publication status restrictions were set. Standardized search, data abstraction, and evaluation methods were used. Five randomized controlled trials were included in the review. We found limited evidence that sexual risk reduction interventions increase condom use consistency in HIV transmission risk acts, and reduce the number of (casual) sexual partners. We still believe that regular interactions between HIV care providers and PLWHA provide valuable opportunities for theory-based sexual risk reduction interventions to restrain the spread of HIV.

HIV prevention counseling intervention delivered during routine clinical care reduces HIV risk behavior in HIV-infected South Africans receiving antiretroviral therapy: the Izindlela Zokuphila/Options for Health randomized trial

CONTEXT

Sustainable interventions are needed to minimize HIV risk behavior among people living with HIV (PLWH) in South Africa on antiretroviral therapy (ART), a significant proportion of whom do not achieve viral suppression.

OBJECTIVE

To determine whether a brief lay counselor delivered intervention implemented during routine care can reduce risky sex among PLWH on ART.

DESIGN

Cluster-randomized 16 HIV clinical care sites in KwaZulu Natal, South Africa, to intervention or standard of care.

SETTING

Publicly funded HIV clinical care sites.

PATIENTS

One thousand eight hundred ninety-one PLWH on ART received the HIV prevention counseling intervention (n = 967) or standard-of-care counseling (n = 924).

INTERVENTION

Lay counselors delivered a brief intervention using motivational interviewing strategies based on the Information-Motivation-Behavioral (IMB) Skills model during routine clinical care.

MAIN OUTCOME MEASURES

Number of sexual events without a condom in the past 4 weeks with partners of any HIV status, and with partners perceived to be HIV negative or HIV-status unknown, assessed at baseline, 6, 12, and 18 months.

RESULTS

Intervention participants reported significantly greater reductions in HIV risk behavior on both primary outcomes, compared with standard-of-care participants. Differences in sexually transmitted infection incidence between arms were not observed.

CONCLUSIONS

Effective behavioral interventions, delivered by lay counselors within the clinical care setting, are consistent with the strategy of linking HIV care and HIV prevention and integrating biomedical and behavioral approaches to stemming the HIV epidemic.

TRIAL REGISTRATION

Not applicable.

Sexual risk reduction for HIV-infected persons: a meta-analytic review of "positive prevention" randomized clinical trials

BACKGROUND

Prevention intervention trials have been conducted to reduce risk of sexual transmission among people living with HIV/AIDS (PLWHA), but the findings were inconsistent. We performed a systematic review and meta-analysis to evaluate overall efficacy of prevention interventions on unprotected vaginal or anal intercourse (UVAI) among PLWHA from randomized clinical trials (RCTs).

METHODS

RCTs of prevention interventions among PLWHA published as of February 2012 were identified by systematically searching thirteen electronic databases. The primary outcome was UVAI. The difference of standardized mean difference (SMD) of UVAI between study arms, defined as effect size (ES), was calculated for each study and then pooled across studies using standard meta-analysis with a random effects model.

RESULTS

Lower likelihood of UVAI was observed in the intervention arms compared with the control arms either with any sexual partners (mean ES: -0.22; 95% confidence interval [CI]: -0.32, -0.11) or with HIV-negative or unknown-status sexual partners (mean ES and 95% CI: -0.13 [-0.22, -0.04]). Short-term efficacy of interventions with ≤ 10 months of follow up was significant in reducing UVAI (1-5 months: -0.27 [-0.45, -0.10]; 6-10 months: -0.18 [-0.30, -0.07]), while long-term efficacy of interventions was weaker and might have been due to chance (11-15 months: -0.13 [-0.34, 0.08]; >15 months: -0.05 [-0.43, 0.32]).

CONCLUSIONS

Our meta-analyses confirmed the short-term impact of prevention interventions on reducing self-reported UVAI among PLWHA irrespective of the type of sexual partner, but did not support a definite conclusion on long-term effect. It is suggested that booster intervention sessions are needed to maintain a sustainable reduction of unprotected sex among PLWHA in future risk reduction programs.

Positive choices: outcomes of a brief risk reduction intervention for newly HIV-diagnosed men who have sex with men

Positive choices (PC), a brief sexual risk reduction intervention conducted with newly HIV-diagnosed men who have sex with men (MSM), was evaluated for preliminary efficacy. Participants were enrolled if they reported unprotected anal intercourse (UAI) in the three months prior to HIV diagnosis (n = 102). Three months after diagnosis, participants completed baseline assessments and were randomly assigned to receive the 3-session PC intervention or the comprehensive standard of care (C-SoC) at a community health center. Participants completed assessments at 3- (post intervention), 6-, and 9- months after baseline. Compared to C-SoC participants, PC participants significantly reduced the frequency of UAI with HIV serodiscordant (HIV negative or status unknown) partners over the 9-month follow-up period. No differences by condition were found in the frequency of UAI with all partners. The findings from this trial suggest that brief risk reduction approaches for newly-diagnosed MSM integrated into HIV care can benefit secondary HIV prevention efforts.

HIV prevention in clinical care settings: 2014 recommendations of the International Antiviral Society-USA Panel

IMPORTANCE

Emerging data warrant the integration of biomedical and behavioral recommendations for human immunodeficiency virus (HIV) prevention in clinical care settings.

OBJECTIVE

To provide current recommendations for the prevention of HIV infection in adults and adolescents for integration in clinical care settings.

DATA SOURCES, STUDY SELECTION, AND DATA SYNTHESIS

Data published or presented as abstracts at scientific conferences (past 17 years) were systematically searched and reviewed by the International Antiviral (formerly AIDS) Society-USA HIV Prevention Recommendations Panel. Panel members supplied additional relevant publications, reviewed available data, and formed recommendations by full-panel consensus.

RESULTS

Testing for HIV is recommended at least once for all adults and adolescents, with repeated testing for those at increased risk of acquiring HIV. Clinicians should be alert to the possibility of acute HIV infection and promptly pursue diagnostic testing if suspected. At diagnosis of HIV, all individuals should be linked to care for timely initiation of antiretroviral therapy (ART). Support for adherence and retention in care, individualized risk assessment and counseling, assistance with partner notification, and periodic screening for common sexually transmitted infections (STIs) is recommended for HIV-infected individuals as part of care. In HIV-uninfected patients, those persons at high risk of HIV infection should be prioritized for delivery of interventions such as preexposure prophylaxis and individualized counseling on risk reduction. Daily emtricitabine/tenofovir disoproxil fumarate is recommended as preexposure prophylaxis for persons at high risk for HIV based on background incidence or recent diagnosis of incident STIs, use of injection drugs or shared needles, or recent use of nonoccupational postexposure prophylaxis; ongoing use of preexposure prophylaxis should be guided by regular risk assessment. For persons who inject drugs, harm reduction services should be provided (needle and syringe exchange programs, supervised injection, and available medically assisted therapies, including opioid agonists and antagonists); low-threshold detoxification and drug cessation programs should be made available. Postexposure prophylaxis is recommended for all persons who have sustained a mucosal or parenteral exposure to HIV from a known infected source and should be initiated as soon as possible.

CONCLUSIONS AND RELEVANCE

Data support the integration of biomedical and behavioral approaches for prevention of HIV infection in clinical care settings. A concerted effort to implement combination strategies for HIV prevention is needed to realize the goal of an AIDS-free generation.

HIV sexual transmission risk among serodiscordant couples: assessing the effects of combining prevention strategies

BACKGROUND

The number of strategies to prevent HIV transmission has increased following trials evaluating antiretroviral therapy (ART), preexposure prophylaxis (PrEP) and male circumcision. Serodiscordant couples need guidance on the effects of these strategies alone, and in combination with each other, on HIV transmission.

METHODS

We estimated the sexual risk of HIV transmission over 1-year and 10-year periods among male-male and male-female serodiscordant couples. We assumed the following reductions in transmission: 80% from consistent condom use; 54% from circumcision in the negative male partner of a heterosexual couple; 73% from circumcision in the negative partner of a male-male couple; 71% from PrEP in heterosexual couples; 44% from PrEP in male-male couples; and 96% from ART use by the HIV-infected partner.

FINDINGS

For couples using any single prevention strategy, a substantial cumulative risk of HIV transmission remained. For a male-female couple using only condoms, estimated risk over 10 years was 11%; for a male-male couple using only condoms, estimated risk was 76%. ART use by the HIV-infected partner was the most effective single strategy in reducing risk; among male-male couples, adding consistent condom use was necessary to keep the 10-year risk below 10%.

CONCLUSION

Focusing on 1-year and longer term transmission probabilities gives couples a better understanding of risk than those illustrated by data for a single sexual act. Long-term transmission probabilities to the negative partner in serodiscordant couples can be high, though these can be substantially reduced with the strategic use of preventive methods, especially those that include ART.

Qualitative evaluation of a Positive Prevention training for health care providers in Mozambique

The rapid scale-up of HIV care and treatment in Mozambique has provided an opportunity to reach people living with HIV (PLHIV) with prevention interventions in HIV care and treatment settings. A three-day Positive Prevention (PP) training intervention for health care providers that focused on pressing issues for PLHIV in Mozambique was adapted and delivered at sites in three provinces. In-depth interviews were conducted with 31 providers trained in the PP curriculum. Qualitative data were used to assess the appropriateness of the training materials and approach, which lessons providers learned and were able to implement and which PP messages were still difficult to deliver. Providers reported gaining numerous insights from the training, including how to conduct a risk assessment and client-centered counseling, negotiating disclosure, partner testing, condom use, PMTCT, treatment adherence and approaches for positive living. Training topics not commonly mentioned included discordance counseling, STIs, family planning, alcohol and drug use, and frank sexual risk discussions. While areas for improvement exist, the PP training was useful in transferring skills to providers and is a viable component of HIV care. This evaluation helps identify areas where future PP trainings and specific strategies and messages can be refined for the Mozambican context.

A systematic review of interventions for reducing HIV risk behaviors among people living with HIV in the United States, 1988-2012

OBJECTIVE

To conduct a systematic review to examine interventions for reducing HIV risk behaviors among people living with HIV (PLWH) in the United States.

METHODS

Systematic searches included electronic databases from 1988 to 2012, hand searches of journals, reference lists of articles, and HIV/AIDS Internet listservs. Each eligible study was evaluated against the established criteria on study design, implementation, analysis, and strength of findings to assess the risk of bias and intervention effects.

RESULTS

Forty-eight studies were evaluated. Fourteen studies (29%) with both low risk of bias and significant positive intervention effects in reducing HIV transmission risk behaviors were classified as evidence-based interventions (EBIs). Thirty-four studies were classified as non-EBIs due to high risk of bias or nonsignificant positive intervention effects. EBIs varied in delivery from brief prevention messages to intensive multisession interventions. The key components of EBIs included addressing HIV risk reduction behaviors, motivation for behavioral change, misconception about HIV, and issues related to mental health, medication adherence, and HIV transmission risk behavior.

CONCLUSION

Moving evidence-based prevention for PLWH into practice is an important step in making a greater impact on the HIV epidemic. Efficacious EBIs can serve as model programs for providers in healthcare and nonhealthcare settings looking to implement evidence-based HIV prevention. Clinics and public health agencies at the state, local, and federal levels can use the results of this review as a resource when making decisions that meet the needs of PLWH to achieve the greatest impact on the HIV epidemic.

Documentation of psychiatric disorders and related factors in a large sample population of HIV-positive patients in California

This retrospective cohort study examined electronic medical records of HIV-positive patients in California (N = 7,834) to find the prevalence of any psychiatric condition and the associations between several factors and the likelihood of these disorders. Approximately 53 % of the patients in this study had a documented psychiatric condition, including 23 % who had a mood disorder, 19 % who had a substance-related disorder, and 16 % who had an anxiety disorder. After controlling for potential confounders, significant positive associations (p < 0.001) were found between female gender and the presence of any mood disorder (adjusted odds ratio [95 % confidence interval, 95 %CI] = 1.58 [1.26-1.99]) or anxiety disorder (AOR = 1.54 [1.18-2.02]) and between homosexual orientation and the presence of any psychiatric condition (AOR = 1.33 [1.15-1.55]), mood disorder (AOR = 1.71 [1.42-2.07]), or anxiety disorder (AOR = 1.41 [1.22-1.88]). There were also significant negative associations between African-American race and the presence of any psychiatric condition (AOR = 0.68 [0.60-0.77]), mood disorder (AOR = 0.74 [0.64-0.86]), anxiety disorder (AOR = 0.43 [0.36-0.52]), or substance-related disorder (AOR = 0.78 [0.67-0.91]) and between state/federal insurance and the presence of any psychiatric condition (AOR = 0.70 [0.62-0.79]), mood disorder (AOR = 0.71 [0.62-0.80]), or anxiety disorder (AOR = 0.77 [0.66-0.89]).

Feasibility Analysis of an evidence-based positive prevention intervention for youth living with HIV/AIDS in Kinshasa, Democratic Republic of the Congo

We evaluated the feasibility of a Positive Prevention intervention adapted for youth living with HIV/AIDS (YLWH) ages 15-24 in Kinshasa, Democratic Republic of the Congo. We conducted in-depth interviews and focus group discussions with intervention facilitators and YLWH participants on the following four areas of a feasibility framework: acceptability, implementation, adaptation, and limited-efficacy. The adapted intervention was suitable, satisfying, and attractive to program facilitators and participants and able to be implemented effectively. It performed well with a new population and showed preliminary efficacy. However, we identified certain aspects of the intervention that must be addressed prior to wider implementation such as: (1) including more content on navigating marriage while living with HIV and disclosure; (2) adjusting intervention timing and session length; and (3) simplifying the more complicated content. An adapted evidencebased intervention was found to be feasible and lessons learned can be applied to YLWH in other low-resource settings.

Estimating the impact of state budget cuts and redirection of prevention resources on the HIV epidemic in 59 California local health departments

BACKGROUND

In the wake of a national economic downturn, the state of California, in 2009-2010, implemented budget cuts that eliminated state funding of HIV prevention and testing. To mitigate the effect of these cuts remaining federal funds were redirected. This analysis estimates the impact of these budget cuts and reallocation of resources on HIV transmission and associated HIV treatment costs.

METHODS AND FINDINGS

We estimated the effect of the budget cuts and reallocation for California county health departments (excluding Los Angeles and San Francisco) on the number of individuals living with or at-risk for HIV who received HIV prevention services. We used a Bernoulli model to estimate the number of new infections that would occur each year as a result of the changes, and assigned lifetime treatment costs to those new infections. We explored the effect of redirecting federal funds to more cost-effective programs, as well as the potential effect of allocating funds proportionately by transmission category. We estimated that cutting HIV prevention resulted in 55 new infections that were associated with $20 million in lifetime treatment costs. The redirection of federal funds to more cost-effective programs averted 15 HIV infections. If HIV prevention funding were allocated proportionately to transmission categories, we estimated that HIV infections could be reduced below the number that occurred annually before the state budget cuts.

CONCLUSIONS

Reducing funding for HIV prevention may result in short-term savings at the expense of additional HIV infections and increased HIV treatment costs. Existing HIV prevention funds would likely have a greater impact on the epidemic if they were allocated to the more cost-effective programs and the populations most likely to acquire and transmit the infection.

Adaptation of a U.S. evidence-based Positive Prevention intervention for youth living with HIV/AIDS in Kinshasa, Democratic Republic of the Congo

Effective HIV prevention programs for people living with HIV/AIDS (PLWH) are important to reduce new infections and to ensure PLWH remain healthy. This paper describes the systematic adaptation of a U.S.-developed Evidence Based Intervention (EBI) using the Centers for Disease Control and Prevention (CDC) Map of Adaption Process for use at a Pediatric Hospital in Kinshasa, Democratic Republic of the Congo (DRC). The adapted intervention, Supporting Youth and Motivating Positive Action or SYMPA, a six-session risk reduction intervention targeted for youth living with HIV/AIDS (YLWH) in Kinshasa was adapted from the Healthy Living Project and guided by the Social Action Theory. This paper describes the process of implementing the first four steps of the ADAPT framework (Assess, Select, Prepare, and Pilot). Our study has shown that an EBI developed and implemented in the U.S. can be adapted successfully for a different target population in a low-resource context through an iterative process following the CDC ADAPT framework. This process included reviewing existing literature, adapting and adding components, and focusing on increasing staff capacity. This paper provides a rare, detailed description of the adaptation process and may aid organizations seeking to adapt and implement HIV prevention EBIs in sub-Saharan Africa and beyond.

HIV/sexual risk reduction interventions in China: a meta-analysis

The current study was a meta-analysis of the efficacy of educational, psychosocial or behavioral interventions that were conducted in China to promote HIV/sexual risk reduction. A total of 26 intervention studies qualified for the meta-analysis. Outcome variables for which effect sizes were calculated included condom use with different types of sexual partners, HIV/AIDS knowledge, condom use knowledge, intentions of condom use, condom use self-efficacy, and others. Mean weighted effect sizes were calculated for each outcome measure across reviewed studies; effect size for each outcome measure was weighted by their inverse variance; fixed effects and random effects meta-analytic procedures were used. The Q statistic was used to examine whether the effect sizes were homogeneous in nature and moderating analysis (i.e., the Q(b) statistic) was used to compare the effect sizes of intervention studies that were different in a number of categorical variables. The reviewed interventions were successful in improving HIV knowledge (d=0.706), condom use knowledge (d=0.620), attitudes toward people living with HIV/AIDS (PLWHA; d=0.625) and in increasing condom use with regular partners (d=0.477), condom use with casual partners (d=0.444), general condom use (d=0.408), and condom use self-efficacy (d=0.584) among target audiences. In addition, moderating analyses on three most examined variables, including HIV knowledge, condom use, and attitudes toward PLWHA, demonstrated that interventions that reported the conduction of formative research and process evaluation, that were peer-led, and that included only one follow-up were more likely to report a positive impact on condom use behavior among target audiences (p<0.001), HIV knowledge (p<0.001), or attitudes toward PLWHA (p<0.001).

Modeling seroadaptation and sexual behavior among HIV+ study participants with a simultaneously multilevel and multivariate longitudinal count model

Longitudinal behavioral intervention trials to reduce HIV transmission risk collect complex multilevel and multivariate data longitudinally for each subject with important correlation structures across time, level, and variables. Accurately assessing the effects of these trials are critical for determining which interventions are effective. Both numbers of partners and numbers of sex acts with each partner are reported at each time point. Sex acts with each partner are further differentiated into protected and unprotected acts with correspondingly differing risks of HIV/STD transmission. These trials generally also have eligibility criteria limiting enrollment to participants with some minimal level of risky sexual behavior tied directly to the outcome of interest. The combination of these factors makes it difficult to quantify sexual behaviors and the effects of intervention. We propose a multivariate multilevel count model that simultaneously models the number of partners, acts within partners, and accounts for recruitment eligibility. Our methods are useful in the evaluation of intervention trials and provide a more accurate and complete model for sexual behavior. We illustrate the contributions of our model by examining seroadaptive behavior defined as risk reducing behavior that depends on the serostatus of the partner. Several forms of seroadaptive risk reducing behavior are quantified and distinguished from nonseroadaptive risk reducing behavior.

Costs, consequences and feasibility of strategies for achieving the goals of the National HIV/AIDS strategy in the United States: a closing window for success?

Three key policy questions are explored here: Is it still epidemiologically feasible to attain the incidence and transmission rate reduction goals of the U.S. National HIV/AIDS Strategy (NHAS) by 2015? If so, what costs will be incurred in necessary program expansion, and will the investment be cost-effective? Would substantial expansion of prevention services for persons living with HIV (PLWH) augment the other strategies outlined in the NHAS in terms of effectiveness and cost-effectiveness? Eight policy scenarios were constructed based on three factors (two levels each): expansion (or not) of HIV diagnostic services; assumptions regarding levels of effectiveness of HIV treatment in achieving suppressed viral load; and possible levels of expansion of prevention services for PLWH. All scenarios assumed that the NHAS goal of 85 % linkage to HIV care would be fully achieved by 2015. Standard methods of economic evaluation and epidemiologic modeling were employed. Each of the eight policy scenarios was compared to a flat transmission rate comparison condition; then, key policy dyads were compared pairwise. Without expansion of diagnostic services and of prevention services for PLWH, scaling up coverage of HIV care and treatment alone in the U.S. will not achieve the incidence and transmission rate reduction goals of the NHAS. However, timely expansion of testing and prevention services for PLWH does allow for the goals to still be achieved by 2015, and does so in a highly cost-effective manner.

Prevention case management improves socioeconomic standing and reduces symptoms of psychological and emotional distress among transgender women

Urban transgender women often experience several sociocultural co-factors which contribute to their risk of HIV infection. A transgender-specific HIV Prevention Case Management (PCM) intervention was implemented in a community HIV prevention setting and targeted reducing sex work and homelessness, increasing legal employment and income, and reducing psychological and emotional distress symptoms. Sixty high-risk transgender women were enrolled in the ten-session PCM intervention. Participants completed approximately nine out of the ten sessions (M = 8.7; SD = 2.6) and six-month follow-up evaluations were completed with 97% of the participants. Findings from baseline to follow-up evaluations demonstrated a decrease in homelessness (31.0% vs. 10.3%, p<0.01), less reliance on exchange sex as a primary source of income (41.4% vs. 22.4%, p < 0.05), and significant decreases in symptom complaints across multiple Brief Symptom Inventory sub-scales, including depression, hostility, phobic anxiety, and psychoticism (all significant at p<0.05). Further, socioeconomic improvements following the intervention were significantly associated with psychological and emotional gains. The study suggests that adding a culturally appropriate PCM intervention in a community setting is beneficial in addressing co-factors for HIV infection as well as psychological and emotional distress symptoms among this extremely high-risk population.

Allocating HIV prevention funds in the United States: recommendations from an optimization model

The Centers for Disease Control and Prevention (CDC) had an annual budget of approximately $327 million to fund health departments and community-based organizations for core HIV testing and prevention programs domestically between 2001 and 2006. Annual HIV incidence has been relatively stable since the year 2000 [1] and was estimated at 48,600 cases in 2006 and 48,100 in 2009 [2]. Using estimates on HIV incidence, prevalence, prevention program costs and benefits, and current spending, we created an HIV resource allocation model that can generate a mathematically optimal allocation of the Division of HIV/AIDS Prevention’s extramural budget for HIV testing, and counseling and education programs. The model’s data inputs and methods were reviewed by subject matter experts internal and external to the CDC via an extensive validation process. The model projects the HIV epidemic for the United States under different allocation strategies under a fixed budget. Our objective is to support national HIV prevention planning efforts and inform the decision-making process for HIV resource allocation. Model results can be summarized into three main recommendations. First, more funds should be allocated to testing and these should further target men who have sex with men and injecting drug users. Second, counseling and education interventions ought to provide a greater focus on HIV positive persons who are aware of their status. And lastly, interventions should target those at high risk for transmitting or acquiring HIV, rather than lower-risk members of the general population. The main conclusions of the HIV resource allocation model have played a role in the introduction of new programs and provide valuable guidance to target resources and improve the impact of HIV prevention efforts in the United States.

Routine brief risk-reduction counseling with biannual STD testing reduces STD incidence among HIV-infected men who have sex with men in care

BACKGROUND

We evaluated whether routine biannual sexually transmitted disease (STD) testing coupled with brief risk-reduction counseling reduces STD incidence and high-risk behaviors.

METHODS

The SUN study is a prospective observational HIV cohort study conducted in 4 US cities. At enrollment and every 6 months thereafter, participants completed a behavioral survey and were screened for STDs, and if diagnosed, were treated. Medical providers conducted brief risk-reduction counseling with all patients. Among men who have sex with men (MSM), we examined trends in STD incidence and rates of self-reported risk behaviors before and after exposure to the risk-reduction intervention. The "preintervention" visit was the study visit that was at least 6 months after enrollment STD screening and treatment and at which the participant was first exposed to the intervention. The "postintervention" visit was 12 months later.

RESULTS

Among 216 MSM with complete STD and behavioral data, median age was 44.5 years; 77% were non-Hispanic white; 83% were on highly active antiretroviral treatment; 84% had an HIV RNA level <400 copies/mL and the median CD4 (cluster of differentiation 4) count was 511 cells/mm. Twelve months after first exposure to the risk-reduction intervention, STD incidence declined from 8.8% to 4.2% (P = 0.041). Rates of unprotected receptive or insertive anal intercourse with HIV-positive partners increased (19% to 25%, P = 0.024), but did not change with HIV-negative partners or partners of unknown HIV status (24% to 22%, P = 0.590).

CONCLUSIONS

STD incidence declined significantly among HIV-infected MSM after implementing frequent, routine STD testing coupled with risk-reduction counseling. These findings support adoption of routine STD screening and risk-reduction counseling for HIV-infected MSM.

Victimization and sexual risk behavior in young, HIV positive women: exploration of mediators

In this study we explore associations between child and adult victimization and sexual risk behavior in 118 young, HIV positive women. Prior research has demonstrated associations between victimization and engagement in sexual risk behavior. Victimization sequelae can include disrupted assertiveness and communication, as well as increased association with risky partners, both of which are also linked with engagement in sexual risk behavior. Thus, we propose a model wherein victimization is linked to sexual risk behavior through two mediating pathways, sexual communication and affiliation with risky partners. We also examine the moderating effects of the presence of an anxiety or depressive disorder on the path from child to adult victimization. Results suggested that adult victimization was associated with unprotected sex with a main partner; however, this association was mediated by less sexual communication and having a risky partner. Trends toward significance were found for depression and anxiety as a moderator of the relationship between child and adult victimization. Child victimization did not have direct effects on unprotected sex. Implications for secondary prevention of HIV and healthy intimate relationships are discussed.

Methamphetamine use and neuropsychiatric factors are associated with antiretroviral non-adherence

The present study assesses the impact of methamphetamine (METH) on antiretroviral therapy (ART) adherence among HIV+ persons, as well as examines the contribution of neurocognitive impairment and other neuropsychiatric factors [i.e., major depressive disorder (MDD), antisocial personality disorder (ASPD), and attention deficit disorder (ADHD)] for ART non-adherence. We examined HIV+ persons with DSM-IV-diagnosed lifetime history of METH abuse/dependence (HIV+ /METH+ ; n=67) as compared to HIV+ participants with no history of METH abuse/dependence (HIV+ /METH - ; n=50). Ancillary analyses compared these groups with a small group of HIV+ /METH+ persons with current METH abuse/dependence (HIV+ /CU METH+ ; n=8). Non-adherence was defined as self-report of any skipped ART dose in the last four days. Neurocognitive functioning was assessed with a comprehensive battery, covering seven neuropsychological domains. Lifetime METH diagnosis was associated with higher rates of detectable levels of plasma and CSF HIV RNA. When combing groups (i.e., METH+ and METH- participants), univariate analyses indicated co-occurring ADHD, ASPD, and MDD predicted ART non-adherence (p's < 0.10; not lifetime METH status or neurocognitive impairment). A significant multivariable model including these variables indicated that only MDD uniquely predicted ART non-adherence after controlling for the other variables (p<0.05). Ancillary analyses indicated that current METH users (use within 30 days) were significantly less adherent (50% prevalence of non-adherence) than lifetime METH+ users and HIV+ /METH- participants and that neurocognitive impairment was associated with non-adherence (p's < 0.05). METH use disorders are associated with worse HIV disease outcomes and ART medication non-adherence. Interventions often target substance use behaviors alone to enhance antiretroviral treatment outcomes; however, in addition to targeting substance use behaviors, interventions to improve ART adherence may also need to address coexisting neuropsychiatric factors and cognitive impairment to improve ART medication taking.

Secondary HIV prevention: novel intervention approaches to impact populations most at risk

This paper reviews recent secondary prevention interventions designed to reduce sexual risk behaviors among people living with HIV/AIDS (PLWHA). A summary of findings from previous meta-analyses and narrative reviews of interventions is provided. Next, novel HIV prevention approaches for PLWHA are reviewed. The review reports on the efficacy of interventions delivered in primary care settings or by technology-formats, interventions that also address mental health difficulties, and programs to address particular at-risk populations (eg, men who have sex with men). A critique of recent interventions for people living with HIV/AIDS is provided as well as suggestions for future research.

Mental health: a focus on stress, coping, and mental illness as it relates to treatment retention, adherence, and other health outcomes

Mental health problems are prevalent among HIV-infected individuals, with some estimates that 50% likely meet criteria for one or more psychiatric disorders. The mental health of HIV-infected individuals is important not only for quality-of-life concerns, but also in regard to HAART adherence and biological disease progression. The current review focuses on research published between 2009 and April of 2011, exploring mental health, coping, and stress in relation to HIV care behaviors including HAART adherence, quality of life, treatment retention, health care utilization, and disease progression amongst HIV-infected individuals. Specifically, we reviewed the most prevalent and interfering concerns among HIV-infected individuals-depression, post-traumatic stress disorder, interpersonal violence, stigma and shame, and body image concerns. Despite advances over the last 2 years documenting the deleterious effects of mental health on important HIV self-care behaviors, there is continued need for developing and disseminating evidence-based psychosocial interventions that integrate treating mental health problems with improving self-care behaviors for those living with HIV.

Medication adherence: tailoring the analysis to the data

The purpose of this paper is to explore more comprehensive methods to analyze antiretroviral non-adherence data. Using illustrative data and simulations, we investigated the value of using binary logistic regression (LR; dichotomized at 0% non-adherence) versus a hurdle model (combination of LR plus generalized linear model for >0% non-adherence) versus a zero-inflated negative binomial (ZINB) model (simultaneously modeling 0% non-adherence and >0% non-adherence). In simulation studies, the hurdle and ZINB models had similar power but both had higher power in comparison to LR alone. The hurdle model had higher power than ZINB in settings where covariate effects were restricted to one or the other part of the model (0% non-adherence or degree of non-adherence). Use of the hurdle and ZINB models are powerful and valuable approaches in analyzing adherence data which yield a more complete picture than LR alone. We recommend adoption of this methodology for future antiretroviral adherence research.

Behavioral interventions to promote condom use among women living with HIV

BACKGROUND

High rates of HIV infection among women of reproductive age have dramatic consequences for personal and public health. Prophylaxis during sexual intercourse in the form of condoms has been the most effective way to prevent both STI and HIV transmission among people living with HIV.

OBJECTIVES

To investigate the effectiveness of behavioral interventions in promoting condom use among women living with HIV.

SEARCH STRATEGY

We conducted a comprehensive literature search in several scientific databases, clinical trials databases, conference proceedings, and conference websites to identify studies produced between 1980 and May 2010 that met our selection criteria.

SELECTION CRITERIA

Studies were included in the analysis if they conducted a randomized controlled trial that examined the effects of behavioral interventions on condom use among HIV-positive women; considered at least one HIV-related behavioral outcome (e.g., reported protected anal, vaginal, or oral sex) or biological outcome (e.g., acquisition of STIs); and one follow-up assessment three months or more after the intervention. Studies were assessed irregardless of langauge or publication status.

DATA COLLECTION AND ANALYSIS

We used random effects models to summarize odds ratios (ORs) that compared intervention and control groups with respect to a dichotomous outcome (consistent versus inconsistent condom use). We used funnel plots to examine publication bias and a χ(2) statistic to test for heterogeneity. The methodological and evidence quality was evaluated through risk of bias criteria and the GRADE system, respectively.

MAIN RESULTS

Five primary studies that collectively researched a total of 725 women living with HIV were analysed. When compared to standard care or minimal HIV support intervention, meta-analysis showed that behavioral interventions had no effect on increasing condom use among HIV-positive women. This finding was consistent at various follow-up meetings (3, 6, and 12-months) as well as over the entire 12-month follow-up period (OR= 0.82; 95% CI 0.65-1.04; p=0.11). Only one study presented adequate data to analyze the relationship between behavioral interventions and STI incidence. Studies included in this analysis demonstrated low risk of bias based on the risk of bias criteria. However, sample size was considered inadequate across all studies.

AUTHORS' CONCLUSIONS

Meta-analysis shows that behavioral interventions have little effect on increasing condom use among HIV-positive women. However, these findings should be used with caution since results were based on a few small trials that were targeted specifically towards HIV-positive women. To decrease sexual transmission of HIV among this population, we recommend interventions that combine condom promotion, family planning provision and counselling, and efforts to reduce viral loads among HIV-positive women and their partners (e.g., HAART treatment provision). New research is needed to address the needs of HIV-positive women, including an assessment of the impact of interventions that combine safer sexual behavior and harm reduction approaches.

Quality of sleep: associations with antiretroviral nonadherence

Poor quality of sleep (QOS) is frequently reported in HIV-positive individuals; however, despite its clinical and public health significance, few studies have examined the correlation between QOS and antiretroviral (ARV) adherence. The objective of this study was to estimate the prevalence of sleep disturbances, determine the characteristics of those with poor QOS, and establish the relationship between QOS and ARV nonadherence among HIV-positive individuals. We conducted a cross-sectional secondary data analysis of 2845 HIV-positive adults taking ARV therapy from the Healthy Living Project baseline cohort. Mean self-reported ARV nonadherence was estimated using a 3-day measure. QOS was assessed using three questions regarding sleep pattern changes, amount of bother from difficulty falling/staying asleep, and amount of bother from vivid dreams. Over 68% of individuals reported sleep pattern changes, 50.3% reported difficulty falling/staying asleep, and 20.5% reported bother from vivid dreams. Depression, suicidal ideation, unemployment, use of illicit substances, history of incarceration, and HIV viral load were all independently associated with poor QOS. Individuals reporting feeling bothered about difficulty falling/staying asleep had a 1.66 higher odds of nonadherence (95% confidence interval [CI]=1.18, 2.33; p=0.004). Those reporting the highest degree of bother from difficulty falling/staying asleep and from vivid dreams had a 1.42 (95% CI=1.13, 1.78; p=0.002) and 1.31 (95% CI=0.98, 1.75; p=0.07) higher odds of nonadherence, respectively. With higher incremental reports of poor QOS there were considerable increases in ARV nonadherence. Recognition and timely treatment of sleep difficulties may result in reduced ARV nonadherence with beneficial clinical and public health implications.

Counsellor-delivered HIV risk reduction intervention addresses safer sex barriers of people living with HIV in KwaZulu-Natal, South Africa

This study developed an HIV risk reduction intervention for people living with HIV (PLWH) obtaining care at primary healthcare clinics in KwaZulu-Natal, South Africa by (1) conducting elicitation research to understand the dynamics of risk behaviour among PLWH, (2) modifying an existing HIV risk reduction intervention based on research findings and (3) conducting a pilot study to evaluate feasibility, acceptability and fidelity of the modified intervention implemented by trained lay counsellors at a rural clinic in KwaZulu-Natal. A total of 61 healthcare providers and 77 HIV+ patients from four primary healthcare clinics participated in 14 focus groups and 20 individual interviews to identify informational, motivational and behavioural skills (IMB) factors contributing to PLWH's sexual risk behaviour. Elicitation research findings were incorporated into a revised version of Options for Health, an evidence-based risk reduction intervention for PLWH in clinical care. In a 5-day training, lay counsellors learned strategies to address IMB barriers to safer sex identified in elicitation research. The revised intervention, which was implemented by six counsellors with 39 patients, was feasible to implement, acceptable to patients and counsellors, and implemented with good fidelity. This study makes an important contribution towards development of a theory-based HIV risk reduction intervention for PLWH linking prevention with treatment in South Africa.

Dilemma of concepts and strategies for the prevention of spread of HIV in relation to human behavior, law and human rights

The new prevalence data regarding the estimated global number of human immunodeficiency virus positive (HIV+) cases, i.e., including people who are either aware or unaware of their HIV infection in 2010, lead many to wonder why the increase in incidence has reached today's unprecedented level and escalated within such a short time. This, in spite of prevention campaigns in countries affected by HIV/acquired immune deficiency syndrome (AIDS) with their urgent messages aimed at preventing HIV transmission by promoting changes in individual's behavior. This article analyzes the background of the prevention strategies, in particular their political, social and legal concepts in terms of human rights, and reveals traits of human behavior not considered thus far. A radical reappraisal is necessary, at social and legislative levels, as well as options additional to current concepts. When ethical issues come up, they become blamed for outmoded moralistic positions. However, ignoring the reality has led to dire consequences from prioritizing individual human rights over society's collective need to prevent the spread of HIV.