Towards an understanding of sexual risk behavior in people living with HIV: a review of social, psychological, and medical findings

A population-based and longitudinal study of sexual behavior and multidrug-resistant HIV among patients in clinical care

Background

Population-based and longitudinal information regarding sexual risk behavior among patients with multidrug resistant (MDR) HIV and their sexual partners is of great public health and clinical importance.

Objective

To characterize the HIV sexual risk behaviors of patients with and without drug-resistant HIV in the clinical care setting over time.

Measurements

393 HIV-positive patients completed questionnaires of self-reported sexual risk behaviors at approximate 6-month intervals extending over 24 months. HIV viral load and genotypic drug resistance obtained during the same time points were matched to the behavioral data. Multidrug resistance was defined as having resistance to 2 or 3 antiretroviral (ARV) drug classes.

Results

In serial cross-sectional analyses, 393 patients (44% female and 79% heterosexual) contributed 919 matched behavioral and virologic results over the 24 months of data collection. Of these, 250 patients (64%) reported having sex during at least 1 survey period resulting in greater than 10,000 sexual events with more than 1000 partners. Unprotected sexual behavior was reported by 45% of sexually active patients, resulting in 34% of all sex events that exposed 29% of all partners. Of these patients with unprotected sexual events, 31% had HIV drug resistance 11.6% with resistance to 2 classes of ARVs (2-class), and 1.8% with 3-class ARV resistance at the time of a sexual risk event. Close to 1000 or 28% of all unprotected sexual events involved resistant strains (11% of these with resistance to 2 classes and 0.2% with 3-class resistance, exposing 20% of unprotected sexual partners to resistant HIV (8% to 2-class and 0.6% to 3-class resistance).

In longitudinal analysis among the 78 patients who reported a cumulative total of 12 months of sexual history and had resistance testing, 38% reported engaging in unprotected sexual behavior. There was substantial and complex variation in the distribution of unprotected sexual events and in the detection of resistance over time.

Conclusion

In this study of HIV sexual risk and resistance over time among HIV-infected patients in clinical care, a substantial proportion engaged in unprotected sex and had drug-resistant HIV, frequently exposing partners to 1- or 2-class resistant HIV strains. However, relatively few exposures involved 3-class resistance. The dynamics of sexual risk behavior and HIV drug resistance are complex and vary over time and urgently require both general and targeted interventions to reduce transmission of resistant HIV.

HIV in East London: ethnicity, gender and risk. Design and methods

Background

While men who have sex with men remain the group at greatest risk of acquiring HIV infection in the UK, the number of new diagnoses among heterosexuals has risen steadily over the last five years. In the UK, three-quarters of heterosexual men and women diagnosed with HIV in 2004 probably acquired their infection in Africa. This changing epidemiological pattern is particularly pronounced in East London because of its ethnically diverse population.

Design and methods

The objective of the study was to examine the social, economic and behavioural characteristics of patients with HIV infection currently receiving treatment and care in hospitals in East London. The research focused on ethnicity, gender, sexuality, education, employment, housing, HIV treatment, stigma, discrimination, religion, migration and sexual risk behaviour. People diagnosed with HIV infection attending outpatient treatment clinics at St Bartholomew's, the Royal London, Whipp's Cross, Homerton, Newham and Barking hospitals (all in East London) over a 4–6 month period were invited to participate in the study in 2004–2005. Those who agreed to participate completed a confidential, self-administered pen-and-paper questionnaire. During the study period, 2680 patients with HIV attended the outpatient clinics in the six participating hospitals, of whom 2299 were eligible for the study and 1687 completed a questionnaire. The response rate was 73% of eligible patients and 63% of all patients attending the clinics during the survey period.

Discussion

A clinic-based study has allowed us to survey nearly 1700 patients with HIV from diverse backgrounds receiving treatment and care in East London. The data collected in this study will provide valuable information for the planning and delivery of appropriate clinical care, social support and health promotion for people living with HIV not only in East London but in other parts of the capital as well as elsewhere in the UK.

Unprotected Sex Among HIV-Positive Injection Drug-Using Women and Their Serodiscordant Male Partners

We investigated the characteristics of human immunodeficiency virus (HIV)-positive injection drug-using women who reported unprotected vaginal and/or anal sex with HIV-negative or unknown serostatus (serodiscordant) male partners. Of 426 female study participants, 370 were sexually active. Of these women, 39% (144/370) and 40% (148/370) reported vaginal and/or anal sex with serodiscordant main and casual partners, respectively. Sixty percent of women inconsistently used condoms with their serodiscordant main partners, whereas 53% did so with casual partners. In multivariate analysis, during sex with main partners, inconsistent condom users were less likely to feel confident about achieving safe sex (self-efficacy), personal responsibility for limiting HIV transmission, and that their partner supported safe sex. Inconsistent condom use was also more likely among women who held negative beliefs about condoms and in couplings without mutual disclosure of HIV status. Regarding sex with casual partners, inconsistent condom users were more likely to experience psychologic distress, engage in sex trading, but they were less likely to feel confident about achieving safe sex. These findings suggest that there are widespread opportunities for the sexual transmission of HIV from drug-using women to HIV-uninfected men, and that reasons vary by type of partnership. Multifaceted interventions that address personal, dyadic, and addiction problems are needed for HIV-positive injection drug-using women.

Routine, rapid HIV testing

HIV testing identifies HIV-positive persons, allowing for reduced future HIV transmission while simultaneously providing policy makers with surveillance data to inform policy planning. If current costs of HIV testing were reduced, these funds could be redirected to increase testing rates or to expand treatment. The cost of testing is lowered and impact increased if noninvasive (oral and urine), rapid-testing modalities are utilized, pretest counseling uses cost-efficient counseling methods (e.g., video, pamphlets, small group discussions), and opt-out consent strategies are implemented while posttest counseling is more narrowly targeted to HIV-positive persons. Rather than relying on one international standard, customizing HIV testing procedures to local environments may be more efficient and effective. In the United States, laboratories with substantial HIV testing revenues are likely to be most resistant to altering current practices. However, AIDS researchers, policy makers, and advocates may dramatically influence the epidemic's course by encouraging flexibility and innovation in HIV-testing guidelines.

Perceived partner serostatus, attribution of responsibility for prevention of HIV transmission, and sexual risk behavior with "MAIN" partner among adults living with HIV

Persons living with HIV (PLH) often attribute HIV status to sexual partners based on observable partner characteristics. The present study investigated the relationship of sexual behavior with most recent "main" partner to that partner's perceived serostatus among 1,232 PLH interviewed in clinics and community agencies in Los Angeles, California. PLH who believed their most recent main partner to be HIV-negative more often identified partner appearance as a basis for their perceptions than those who believed their most recent main partner to be HIV-positive. PLH who perceived their most recent main partner as HIV-negative were more likely to assume responsibility for partner protection and always to use condoms, and less likely to report recent unprotected vaginal or anal sex with that partner. Unprotected receptive anal intercourse with their most recent main partner was less common among African American, Latino, and White participants who believed that partner to be HIV-negative. Although PLH appear protective toward HIV-negative main partners, interventions to encourage valid methods of identifying partner serostatus are needed.

Disclosure of HIV serostatus to sex partners: a new approach to measurement

OBJECTIVE

The objective of this study was to assess measurement of full HIV serostatus disclosure (before sex), delayed disclosure (after sex), and no disclosure to both current and recent past (in the last year) sex partners.

GOAL

The goal of this study was to propose a refined measure of HIV disclosure.

STUDY DESIGN

This study consisted of a cross-sectional study using audio computer-assisted survey interviews with 63 persons with HIV/AIDS who reported on 145 sex partnerships.

RESULTS

Considering all sex partners in the past year, full disclosure occurred in 54%, delayed disclosure in 22%, and no disclosure occurred in 24%. Delayed/no disclosure among all partners in the past year was substantially higher than standard measures of no disclosure among current partners only, 46% (95% confidence interval [CI], 38-54%) versus 12% (95% CI, 5-19%). No disclosure was more common in past partnerships than current partnerships (40% vs. 12%, P < 0.01). Predictors of disclosure included partnership characteristics of having an HIV-positive partner and being in a primary, heterosexual relationship.

CONCLUSIONS

Standard measures may underestimate nondisclosure. Counseling and interventions that promote disclosure should include strategies for disclosure in ongoing relationships, assistance in notifying past partners, and a focus on partnership characteristics and dynamics.

Clinician-delivered intervention during routine clinical care reduces unprotected sexual behavior among HIV-infected patients

OBJECTIVE

To evaluate the effectiveness of a clinician-delivered intervention, implemented during routine clinical care, in reducing unprotected sexual behavior of HIV-infected patients.

DESIGN

A prospective clinical trial comparing the impact of a clinician-delivered intervention arm vs. a standard-of-care control arm on unprotected sexual behavior of HIV-infected patients.

SETTING

The 2 largest HIV clinics in Connecticut.

PARTICIPANTS

A total of 497 HIV-infected patients, aged > or =18 years, receiving HIV clinical care.

INTERVENTION

HIV clinical care providers conducted brief client-centered interventions at each clinical encounter that were designed to help HIV-infected patients reduce unprotected sexual behavior.

MAIN OUTCOME MEASURES

Unprotected insertive and receptive vaginal and anal intercourse and unprotected insertive oral sex; unprotected insertive and receptive vaginal and anal intercourse only.

RESULTS

HIV-infected patients who received the clinician-delivered intervention showed significantly reduced unprotected insertive and receptive vaginal and anal intercourse and insertive oral sex over a follow-up interval of 18 months (P < 0.05). These behaviors increased across the study interval for patients in the standard-of-care control arm (P < 0.01). For the measure of unprotected insertive and receptive vaginal and anal sex only, there was a trend toward a reduction in unprotected sex among intervention arm participants over time (P < 0.09), and a significant increase in unprotected sex in the standard-of-care control arm (P < 0.01).

CONCLUSIONS

A clinician-delivered HIV prevention intervention targeting HIV-infected patients resulted in reductions in unprotected sex. Interventions of this kind should be integrated into routine HIV clinical care.

Do prevention interventions reduce HIV risk behaviours among people living with HIV? A meta-analytic review of controlled trials

OBJECTIVE

To conduct a meta-analytic review of HIV interventions for people living with HIV (PLWH) to determine their overall efficacy in reducing HIV risk behaviours and identify intervention characteristics associated with efficacy.

METHODS

Comprehensive searches included electronic databases from 1988 to 2004, hand searches of journals, reference lists of articles, and contacts with researchers. Twelve trials met the stringent selection criteria: randomization or assignment with minimal bias, use of statistical analysis, and assessment of HIV-related behavioural or biologic outcomes at least 3 months after the intervention. Random-effects models were used to aggregate data.

RESULTS

Interventions significantly reduced unprotected sex [odds ratio (OR), 0.57; 95% confidence interval (CI) 0.40-0.82] and decreased acquisition of sexually transmitted diseases (OR, 0.20; 95% CI, 0.05-0.73). Non-significant intervention effects were observed for needle sharing (OR, 0.47, 95% CI, 0.13-1.71). As a whole, interventions with the following characteristics significantly reduced sexual risk behaviours: (1) based on behavioural theory; (2) designed to change specifically HIV transmission risk behaviours; (3) delivered by health-care providers or counsellors; (4) delivered to individuals; (5) delivered in an intensive manner; (6) delivered in settings where PLWH receive routine services or medical care; (7) provided skills building, or (8) addressed a myriad of issues related to mental health, medication adherence, and HIV risk behaviour.

CONCLUSION

Interventions targeting PWLH are efficacious in reducing unprotected sex and acquisition of sexually transmitted diseases. Efficacious strategies identified in this review should be incorporated into community HIV prevention efforts and further evaluated for effectiveness.

Integrating HIV prevention activities into the HIV medical care setting: a report from the NYC HIV Centers Consortium

With the maturing of the HIV epidemic and availability of potent antiretroviral therapies in the US, priorities for HIV prevention have shifted from general population approaches to case finding, treatment, risk reduction and relapse prevention activities among those at greatest risk for acquiring or transmitting HIV infection. The challenges of this approach include ensuring access and adherence to HIV care and treatment and appropriate prevention activities to ensure adequate and sustained sexual and drug use risk reduction across diverse populations. Experience with approaches to address these issues, particularly in the context of primary care, has been limited. An agenda for future research and practice includes continued development and evaluation of interventions that can address this next generation of health care issues.

Therapeutic Drug Monitoring and Human Immunodeficiency Virus (HIV) Antiretroviral Therapy

Treatment with antiretroviral drugs such as the HIV protease inhibitors and non-nucleoside reverse transcriptase inhibitors have contributed to the improvement of life of many HIV-infected patients in recent years, but antiretroviral therapy is not without problems. In some patients, treatment is not effective and suppression of viral replication is not achieved. Other patients experience toxicity and have to stop treatment or change to a less effective treatment. Several studies have demonstrated a relationship between plasma concentrations of the protease inhibitors and non-nucleoside reverse transcriptase inhibitors and viral suppression and toxicity. Therapeutic drug monitoring uses drug concentrations to individualize and optimise therapy by dosage adjustments and many clinicians have advocated for the use of therapeutic drug monitoring in HIV antiretroviral therapy. Evidence from a number of randomized clinical trials supports the use of therapeutic drug monitoring, but the studies have limitations and might not apply to all the antiretroviral drugs. However, the consensus is that certain patients are very likely to benefit from therapeutic drug monitoring. Additionally, the combination of therapeutic drug monitoring and genotypic or phenotypic resistance testing might further improve antiretroviral therapy.

Predicting HIV transmission risk among HIV-infected men who have sex with men: findings from the healthy living project

OBJECTIVE

To examine the predictors of transmission risk among HIV-infected men who have sex with men (MSM) in 4 US cities.

METHOD

Individual computer-assisted interviews assessing psychologic measures and sexual behavior with the 5 most recent male and female partners were conducted with a diverse sample of 1910 HIV-infected MSM recruited from community and clinic settings in San Francisco, New York, Los Angeles, and Milwaukee. Transmission-risk events were defined as unprotected vaginal or anal sex with a partner who was HIV negative or of unknown status.

RESULTS

A small but not insignificant proportion of MSM (12.7%) reported at least 1 transmission-risk event in the previous 3 months, with 57% of those events taking place with casual as opposed to steady partners. Multivariate predictors of transmission risk with casual partners were stimulant (eg, crystal methamphetamine) and other drug use, having low coping self-efficacy, and not having disclosed one's HIV serostatus to all partners. Stimulant use and failing to disclosing one's serostatus to all partners were associated with risk in primary relationships.

CONCLUSIONS

Responding to HIV transmission risk in MSM requires different strategies for primary and casual partners.

Predictors of sexual transmission risk behaviors among HIV-positive young men

Reduction in the incidence of high-risk sexual behaviors among HIV-positive men is a priority. We examined the roles of proximal substance use and delinquency-related variables, and more distal demographic and psychosocial variables as predictors of serious high-risk sexual behaviors among 248 HIV-positive young males, aged 15-24 years. In a mediated latent variable model, demographics (ethnicity, sexual orientation and poverty) and background psychosocial factors (coping style, peer norms, emotional distress, self-esteem and social support) predicted recent problem behaviors (delinquency, common drug use and hard drug use), which in turn predicted recent high-risk sexual behaviors. Hard drug use and delinquency were found to predict sexual risk behaviors directly, as did lower self-esteem, white ethnicity and being gay/bisexual. Negative peer norms strongly influenced delinquency and substance use and positive coping predicted less delinquency. In turn, less positive coping and negative peer norms exerted indirect effects on sexual transmission risk behavior through delinquency and hard drug use. Results suggest targeting hard drug use, delinquency, maladaptive peer norms, dysfunctional styles of escaping stress and self-esteem in the design of intervention programs for HIV-positive individuals.

Breaking traditions: sexual health and ethnicity in nursing research: a literature review

AIM

The aim of this paper is to explore some reasons for the lack of focus on ethnicity and sexual health in nursing research, and suggest ways to advance the nursing evidence-base required for practice development.

BACKGROUND

The United Kingdom National Strategy for Sexual Health and human immunodeficiency virus published in July 2001 highlighted the continued rise in sexual ill health amongst minority ethnic groups. In order to improve sexual health, research evidence is needed explain why particular ethnic groups appear to be at greater risk of sexual ill health. The Strategy identified nurses as key to bringing about improvements in sexual health. Nursing research includes many studies exploring links between ethnicity and health. However, with the exception of extensive work on human immunodeficiency virus/acquired immunodeficiency syndrome as a specific disease, nursing research into ethnicity has not systematically included sexual health.

METHODS

Literature searches were conducted using the BIDS database, World Wide Web and United Kingdom Department of health website between June 2000 and August 2003. Papers written in English incorporating the keywords 'sexual health', 'sexually transmitted infection' and 'health and ethnicity' in the title or abstract were selected for review.

FINDINGS

Nursing research into the association between sexual health and ethnicity is rare. It has been hampered by a variety of political and social constraints concerning the nature of sexual health practice in nursing, researching sexual health, and researching ethnicity and health. The result is a dearth of research evidence to support the development of sexual health practice and the education of healthcare professionals to underpin care of minority ethnic clients.

CONCLUSIONS

Barriers to researching ethnicity and sexual health by nurses must be addressed through nursing education and practice. Without this, a detailed evidence base will fail to materialize and healthcare practices to implement the priorities to improve sexual health in minority ethnic communities will remain undeveloped.

Predictors of serostatus disclosure to partners among young people living with HIV in the pre- and post-HAART eras

Predictors of serostatus disclosure were identified among youth living with HIV pre- and post-introduction of highly active antiretroviral therapy (HAART). Two cohorts of HIV-positive youth, aged 13-24, in 1994-1996 (n = 351) and 1999-2000 (n = 253) in Los Angeles, New York, San Francisco, and Miami were sampled through medical providers and a variety of social service agencies. Data were collected on demographic, social, medical, and behavioral topics. Men who had sex with men were more likely to disclose serostatus to their partners. Moreover, a positive association with length of time since diagnosis and the likelihood of disclosure exists; across time, youth were less likely to disclose serostatus to casual partners or HIV-negative partners. Post-HAART, number of sex acts with a partner was associated with increased likelihood of disclosure. Interventions for HIV-positive youth must improve disclosure to casual and serodiscordant sexual partners.

Housing status and HIV risk behaviors: implications for prevention and policy

This paper examines housing as a contextual factor affecting drug and sexual risk behaviors among HIV positive people using pooled interview data from 2149 clients presenting for services at 16 medical and social service agencies participating in a multi-site evaluation study. The odds of recent drug use, needle use or sex exchange at the baseline interview was 2-4 times as high among the homeless and unstably housed compared to persons with stable housing. Follow-up data collected 6-9 months after baseline showed that change in housing status was associated with change in risk behaviors. Persons whose housing status improved between baseline and follow-up significantly reduced their risks of drug use, needle use, needle sharing and unprotected sex by half in comparison to individuals whose housing status did not change. In addition, for clients whose housing status worsened between baseline and follow-up, their odds of recently exchanging sex was over five times higher than for clients whose housing status did not change. The provision of housing is a promising structural intervention to reduce the spread of HIV.

Mental disorders and drug abuse in persons living with HIV/AIDS

This article reviews the literature on the prevalence of mental and substance use disorders among persons living with HIV/AIDS. Drug use, both injection and non-injection, substantially increases the risk for HIV infection. While injection drug users have the highest prevalence rates for HIV, substantially elevated rates of HIV infection are also present among crack cocaine users and individuals with substance use disorders generally. Persons with HIV/AIDS and a mental and/or substance use disorder have highly variable patterns of accessing services. Persons with HIV/AIDS who have a serious mental illness are more highly involved with services than other groups. Most individuals with co-occurring disorders report some involvement with outpatient primary medical care, although ancillary services such as mental health and substance abuse treatment, transportation assistance, and case management improve involvement in medical care. Women with HIV/AIDS and co-occurring mental and substance use disorders experience unique vulnerabilities, particularly those related to exposure to traumatic events. Given the complexity of needs with which triply or multiply diagnosed individuals present, effective treatment programmes are likely to be those that provide some degree of integrated care.

Correlates of HIV infection among incarcerated women: implications for improving detection of HIV infection

The prevalence of HIV infection in correctional settings is several-fold higher than found in community settings. New approaches to identifying HIV infection among prisoners are urgently needed. In order to determine the HIV seroprevalence and to identify the correlates of HIV infection among female prisoners, an anonymous, but linked HIV serosurvey was conducted at Connecticut's sole correctional facility for women (census=1,100). After removing all individual identifiers for inmates' standardized clinical and risk behavior information, data are linked by a third source to blinded HIV-testing information by a third party. This three-step sequential process allows for anonymous HIV testing that can still be linked with deidentified clinical and behavioral data. Of the 3,315 subjects with complete information, 250 (7.5%) were HIV+. Of these, 157 (63%) self-reported being HIV+. Using multiple logistic regression analysis, having sex with a known HIV+ person [adjusted odds ratio (AOR)=9.1] and injection drug use (AOR=6.1) were the most highly correlated risk factors for HIV, whereas leukopenia (AOR=9.4) and hypoalbuminemia (AOR=7.2) were the most significant laboratory markers. Other independent correlates of HIV included self-report of syphilis (AOR=1.9) or genital herpes infection (AOR=2.7) and being Black (AOR=2.1) or Hispanic (AOR=2.2). The prevalence of HIV and HIV-risk behaviors is high among incarcerated women. Existing voluntary HIV counseling and testing programs do not completely target high-risk groups who remain part of the evolving epidemic. Defined demographic, behavioral, and clinical assessments may provide useful information for encouraging targeted counseling and testing. Newer targeted approaches merit further study to determine the effectiveness of this approach. Alternative methods of facilitating more widespread HIV testing, such as saliva tests, rapid serologic tests, and more routine testing in high HIV-prevalence areas should be considered both for clinical and for public health benefits.

Psychosocial correlates of transmission risk behavior among HIV-seropositive gay and bisexual men

OBJECTIVES

We sought to identify the determinants of sexual transmission risk behavior by HIV-positive individuals. We examined social cognitive theory (SCT) variables, which have been found to mediate the effectiveness of HIV risk reduction interventions. We also sought to identify contextual influences that might contribute to initial levels of SCT factors such as self-efficacy.

METHOD

In the present study, a series of social cognitive variables and a number of factors hypothesized to influence self-efficacy were assessed among participants at baseline in the Seropositive Urban Men's Intervention Trial. Variables tested for their effects on self-efficacy included hedonistic and self-evaluative outcome expectancies, sexual compulsivity, a history of childhood sexual abuse, drug use, and race. Models predicting condom use during anal sex with partners of HIV-negative or unknown status were tested separately for main partners and for non-main partners.

RESULTS

Self-efficacy was associated with condom use in both analyses. Contextual influences on condom use with main partners were fewer and operated mostly via effects on self-efficacy. Influences on condom use with non-main partners exerted both direct effects on condom use and effects mediated by self-efficacy. Drug use was predictive of condom use with non-main, but not main, partners.

DISCUSSION

The present results support the approach of addressing both standard SCT factors, and when possible contextual factors in interventions for HIV-positive men.

Prevention with gay and bisexual men living with HIV: rationale and methods of the Seropositive Urban Men's Intervention Trial (SUMIT)

OBJECTIVES

To provide a public health rationale for prevention with HIV-seropositive gay and bisexual men and to describe the methods of the Seropositive Urban Men's Intervention Trial (SUMIT).

DESIGN

A randomized intervention trial.

METHODS

Self-identified HIV-positive gay and bisexual men were recruited from community-based venues in New York City and San Francisco. Eligible participants completed an A-CASI baseline assessment, were asked to provide samples for sexually transmitted infection (STI) testing, and were randomly assigned to either a single-session intervention or a six-session enhanced intervention designed to reduce HIV transmission risk and promote serostatus disclosure. Participants who attended the first intervention session were assessed 3 and 6 months post-intervention. STI testing was offered at the 6-month assessment.

RESULTS

A total of 1168 self-identified HIV-seropositive gay and bisexual men completed the baseline assessment, and 1110 of these (95%) opted for STI testing. A total of 811 attended the first intervention session, of which 85% were assessed at 3 months and 90% were assessed at 6 months. Of those assessed at 6 months, 92% (670/729) provided a blood or urine sample for STI testing.

CONCLUSION

SUMIT demonstrates the feasibility and acceptability of prevention research with HIV-seropositive gay and bisexual men. The study provides new information about the sexual behavior, serostatus disclosure practices, and the efficacy of an intervention to reduce HIV transmission risk.

Cost-effectiveness of a behavioral intervention for seropositive youth

An intervention for young people living with HIV (YPLH) was effective in reducing the number of partners of unknown serostatus and the number of unprotected sexual risk acts. In this article, we outline new methods to assess the cost-effectiveness of this intervention. Over a period of 3 months, the intervention would avert an estimated 2.02 new infections per 1,000 YPLH. The cost of mounting the intervention was estimated at US 522 dollars/YPLH, with the cost-effectiveness over a 1-year period being US 103,366 dollars/infection averted. Based on standardized estimates of the cost of treating HIV-positive persons and the adjusted quality of life years lost (10.23 for partners of a mean age of 29 years), the cost utility estimate shows that the treatment costs averted exceed the cost of the intervention. Both the methodology of calculating cost-effectiveness and the cost utility of interventions are important for focusing policy makers, clinicians, community providers, and researchers on prevention for persons living with HIV.

Risk behaviors of youth living with HIV: pre- and post-HAART

OBJECTIVE

To examine the transmission behavior among youth living with HIV (YLH), pre- and post-HAART.

METHODS

Two cohorts were recruited: (1) 349 YLH during 1994 to 1996 and (2) 175 YLH during 1999 to 2000, after the wide availability of HAART. Differences in sexual and substance-use risk acts and quality of life were examined.

RESULTS

Post-HAART YLH were more likely to engage in unprotected sex and substance use, to be more emotionally distressed, and to have lower quality of life than were pre-HAART YLH.

CONCLUSIONS

Targeted interventions for YLH that address reductions in transmission acts and aim to improve quality of life are still needed.

Sexuality and sexual risk behavior in HIV-positive men who have sex with men

The purpose of this study was to examine the psychological processes pertaining to sexuality and sexual risk behavior among HIV-positive men who have sex with men (MSM). The authors analyzed transcripts of 30 semistructured interviews. Findings suggest that sexual problems in HIV-positive MSM might be primarily caused by the perceived risk of transmitting HIV to others. Furthermore, safer sexual behavior seems to be related to feelings of personal responsibility for safer sex. This study illustrates that although some men might have a clear notion of personal responsibility for safer sex, contextual factors can influence whether behavior is consistent with their norms of personal responsibility. The implications of the study are discussed for the practice of HIV prevention for HIV-positive MSM.

Condom use and perceived risk of HIV transmission among sexually active HIV-positive men who have sex with men

This study examined the association between HIV transmission risk perception and the sexual risk behaviors of HIV-positive men who have sex with men. Respondents rated the degree of risk of transmitting HIV through insertive anal intercourse and insertive oral sex. We examined (a) the perceived level of HIV transmission risk assigned to each sexual behavior and (b) the association between perceived risk for HIV transmission and condom use during insertive anal intercourse and insertive oral sex. We found for behaviors that have achieved less risk consensus that as transmission risk perception increases, so too does the likelihood of condom use. This study highlights the need for more research in understanding how perceived health risk to others influences protective behaviors.

Group-level interventions for persons living with HIV: a catalyst for individual change

This study describes the perceived influence of group-level HIV interventions on persons living with HIV in Los Angeles, California. Funded by the Centers for Disease Control and Prevention and developed by a broad range of community organizations, group-level interventions ranged from small skills-building workshops to large educational forums and to intensive weekend gatherings. Recognizing the relationship between psychosocial factors and HIV-related risk taking, these interventions were designed not only to provide HIV prevention education and develop risk reduction skills but also to bring people together to facilitate the formation of supportive relationships. The formative data presented here are based on 35 qualitative interviews conducted with a sample of intervention participants. Interviews highlight the experiential opportunities that group interventions offer with respect to HIV knowledge, social support, HIV disclosure skills, and HIV risk reductions. Participants talked highly of their experiences in group-level interventions, suggesting that they should be considered an important prevention strategy for people living with HIV.

The Healthy Living Project: an individually tailored, multidimensional intervention for HIV-infected persons

The NIMH Healthy Living Project (HLP), a randomized behavioral intervention trial for people living with HIV, enrolled 943 individuals, including women, heterosexual men, injection drug users, and men who have sex with men from Los Angeles, Milwaukee, New York, and San Francisco. The intervention, which is based on qualitative formative research and Ewart's Social Action Theory, addresses three interrelated aspects of living with HIV: stress and coping, transmission risk behavior, and medication adherence. Fifteen 90-minute structured sessions, divided into 3 modules of five sessions each, are delivered to individuals. Sessions are tailored to individuals within a structure that uses role-plays, problem solving, and goal setting techniques. A 'Life Project'--or overarching goal related to personal striving-provides continuity throughout sessions. Because this is an ongoing project with efficacy yet to be established, we do not report intervention outcomes. However, the intervention was designed to be useful for prevention case management, settings where repeated one-on-one contact is possible, and where a structured but highly individualized intervention approach is desired.

The other side of the healthy relationships intervention: mental health outcomes and correlates of sexual risk behavior change

Healthy Relationships is a small-group, social cognitive theory-based HIV prevention intervention designed for people living with HIV/AIDS. The Healthy Relationships intervention was demonstrated effective in a controlled randomized clinical trial. The intervention also integrated stress reduction with sexual risk reduction techniques, but the mental health outcomes from the intervention have not yet been reported. This study examined the 6-month follow-up mental health outcomes of the Healthy Relationships intervention among 81 HIV-positive study participants (45 in the Healthy Relationships condition and 36 in the health maintenance control condition) who reported sexual relationships with HIV-negative or unknown HIV status (nonconcordant) partners. Compared with the time-matched control condition, the Healthy Relationships intervention demonstrated significant reductions in perceived HIV-related stress. There was also evidence that reductions in perceived HIV-related stress mediated the intervention effects on sexual risk behaviors with nonconcordant partners. Results have implications for designing the next generation of HIV prevention interventions targeted to people living with HIV/AIDS.

Prevention interventions with persons living with HIV/AIDS: state of the science and future directions

The National Institutes of Health (NIH/NIMH), the Centers for Disease Control and Prevention (CDC), and the HIV/AIDS Bureau of the Health Resources and Services Administration (HRSA) support the CDC's Serostatus Approach to Fighting the HIV Epidemic (SAFE; Janssen et al., 2001). One aim of the strategy is to help individuals living with HIV (and their partners) adopt and sustain HIV and STD risk reduction, treatment adherence, and effective strategies for coping with HIV/AIDS. Efficacious interventions are needed by community organizations and clinics that provide evidence-based services. To expedite translation from research to practice, we convened scientist-practitioners, HIV treatment and prevention providers, and community/consumer members. In this article, we include an overview of prevention trials with HIV-positive persons presented at the meeting, discuss strengths and limitations, recommendations for future research, and discuss sponsoring agencies' plans for advancing prevention tailored for persons living with HIV.

Sexually Transmitted Disease/HIV Transmission Risk Behaviors and Sexually Transmitted Disease Prevalence Among HIV-Positive Men Receiving Continuing Care

OBJECTIVE

HIV primary care clinics offer an environment in which to deliver prevention messages and to conduct sexually transmitted disease (STD) screening. Determination of the prevalence and factors associated with risk-taking behaviors among HIV clinic attendees is needed.

GOAL

The goal of this study was to describe risk behaviors and STD prevalence in males receiving HIV primary care.

STUDY

Participants underwent an interviewer-administered survey and STD testing during this cross-sectional study.

RESULTS

Over two thirds of study participants reported sexual activity within the prior 6 months of which 6% were infected with gonorrhea or chlamydia. Men performing insertive rectal sex were 5 times less likely to use condoms when the partner was HIV-positive (odds ratio [OR], 5.14; 95% confidence interval [CI], 1.90-13.91), whereas patients with higher CD4 counts were more likely to engage in unprotected receptive rectal sex (OR, 1.20; 95% CI, 1.02-1.42).

CONCLUSION

HIV primary care clinics provide access to patients in need of HIV prevention intervention and are appropriate sites for these activities.

The Influence of Partner Type and Risk Status on the Sexual Behavior of Young Men Who Have Sex With Men Living With HIV/AIDS

OBJECTIVES

The influence of partner type and risk status on the unprotected sexual behavior of young men living with HIV (YMLH) who have sex with men is examined.

METHODS

Sexual behavior and sexual partner characteristics of 217 YMLH recruited from adolescent care clinics in 4 AIDS epicenters (Los Angeles, San Francisco, New York, and Miami) were assessed. YMLH were categorized by sexual behavior pattern, and sexual partners were classified by type and risk status. Generalized linear modeling employing overdispersed Poisson distribution was used to analyze the effect of partner type and partner risk status on unprotected sex acts.

RESULTS

Most YMLH (62%) reported multiple partners, 26% reported 1 sexual partner, and 12% reported abstinence in the past 3 months. Approximately 34% of polygamous and 28% of monogamous youth engaged in unprotected sex. Monogamous youth were most likely to have unprotected sex with HIV-positive partners. Polygamous youth were most likely to have unprotected sex with HIV-positive partners, irrespective of whether the partner was regular or casual. For polygamous YMLH, unprotected sex did not differ among single-time/new partners with different risk levels.

CONCLUSIONS

Partner characteristics influence the condom use behavior of YMLH. YMLH make decisions regarding condom use based on perception of their partner's risk. Preventive interventions must include skills for acquiring accurate information about partner risk status and education regarding the health risks of unprotected sex with HIV seroconcordant partners.

Interpersonal predictors of depression trajectories in women with HIV

This article tests an interpersonal model of depression symptom trajectories tailored to the experiences of women with HIV. Specifically, the authors examined how bereavement, maternal role difficulty, HIV-related social isolation, and partner conflict predicted change in depressive symptoms over 5 years in 761 women with HIV, controlling for sociodemographic and clinical health factors. Of these interpersonal characteristics, partner conflict emerged as a robust predictor of change in depressive symptoms in growth curve and cross-lag models. Results highlight the need for interventions focusing on interpersonal issues, particularly intimate relationships, in women with HIV.

HIV status of sexual partners is more important than antiretroviral treatment related perceptions for risk taking by HIV positive MSM in Montreal, Canada

OBJECTIVE

To examine the role of antiretroviral treatment related perceptions relative to other clinical and psychosocial factors associated with sexual risk taking in HIV positive men who have sex with men (MSM).

METHODS

Participants were recruited from ambulatory HIV clinics in Montreal. Information on sociodemographic factors, health status, antiretroviral treatment related perceptions, and sexual behaviours was collected using a self administered questionnaire. At-risk sexual behaviour was defined as at least one occurrence of unprotected insertive or receptive anal intercourse in the past 6 months. Multivariate logistic regression was performed to evaluate the associations between at-risk sexual behaviour and covariates.

RESULTS

346 subjects participated in the study. Overall, 34% of subjects were considered at risk; 43% of sexually active subjects (n=274). At-risk sexual behaviour was associated with two antiretroviral treatment related perceptions: (1) taking antiretroviral treatment reduces the risk of transmitting HIV (adjusted odds ratio (OR), 2.10; 95% confidence interval (CI), 1.16 to 3.80); and (2) there is less safer sex practised by MSM because of HIV treatment advances (OR, 1.82; CI, 1.14 to 2.90). Other factors, however, were more strongly associated with risk. These were: (1) safer sex fatigue (OR, 3.23; CI, 1.81 to 5.78); (2) use of "poppers" during sexual intercourse (OR, 6.28; CI, 2.43 to 16.21); and (3) reporting a greater proportion of HIV positive anal sex partners, compared with reporting no HIV positive anal sex partners: (a) <50% HIV positive (OR, 16.79; CI, 4.70 to 59.98); (b) > or =50% HIV positive (OR, 67.67; CI, 15.43 to 296.90).

CONCLUSION

Despite much emphasis on HIV treatment related beliefs as an explanation for sexual risk taking in MSM, this concern may play a relatively minor part in the negotiation of risk by HIV positive MSM. Serosorting, safer sex fatigue, and the use of poppers appear to be more important considerations in understanding the sexual risk behaviours of HIV positive MSM.

Antiretroviral resistance and high-risk transmission behavior among HIV-positive patients in clinical care

BACKGROUND

HIV-positive patients receiving antiretroviral therapy (ART) who engage in HIV transmission behaviors may harbor and transmit drug-resistant HIV. However, little is known about the risk behaviors of these patients, potential partners exposed and the relationship of these to ART resistance.

OBJECTIVE

To determine the relationship of HIV drug resistance and continuing HIV transmission risk behavior among HIV-positive patients in care.

METHODS

A retrospective, cross-sectional study of HIV transmission risk behavior and HIV drug resistance data from 333 HIV-positive patients.

RESULTS

Among a diverse population of 333 HIV-positive patients, 75 (23%) had unprotected sex during the previous 3-months, resulting in 1126 unprotected sexual events with 191 partners of whom 155 were believed by patients to be HIV-negative or of unknown status. Eighteen of the 75 (24%) had resistant HIV and 207 unprotected sexual events, exposing 18% of the HIV- or status unknown partners. There was no difference in the proportion of patients engaging in unprotected sex who had undetectable viral load (VL) (22%): VL > 400 copies/ml without resistance (20%) and VL > 400 copies/ml with resistance (26%). Resistance and risk behavior was predicted only by lower mental health scores (odds ratio, 10.3; 95% confidence interval, 1.7-18.6).

CONCLUSION

A substantial minority (23%) of patients in clinical care engaged in HIV sexual transmission risk behavior. A small subset of these also had ART-resistant HIV. However, this core group (approximately 5% of all patients) accounted for a large number of high-risk HIV transmission events with resistant virus, exposing a substantial number of partners.

Prevention for substance-using HIV-positive young people: telephone and in-person delivery

SUMMARY

HIV risky behaviors and health practices were examined among young people living with HIV (YPLH) in Los Angeles, San Francisco, and New York over 15 months in response to receiving a preventive intervention. YPLH aged 16 to 29 years (n = 175; 26% black and 42% Latino; 69% gay men) were randomly assigned to a 3-module intervention totaling 18 sessions delivered by telephone, in person, or a delayed-intervention condition. Intention-to-treat analyses found that the in-person intervention resulted in a significantly higher proportion of sexual acts protected by condoms overall and with HIV-seronegative partners. Pre- and postanalyses of YPLH in the delayed-intervention condition alone found that YPLH tended to have fewer sexual partners, used fewer drugs, reported less emotional distress, and decreased their use of antiretroviral therapies. Prevention programs can be delivered in alternative formats while retaining efficacy. When YPLH are using hard drugs, drug treatment may be needed before delivery of preventive interventions.

Interventions for Seropositive Injectors—Research and Evaluation

BACKGROUND

Behavioral interventions to address the complex medical and HIV risk reduction needs of HIV-seropositive (HIV-positive) injection drug users (IDUs) are urgently needed. We describe the development of Interventions for Seropositive Injectors-Research and Evaluation (INSPIRE), a randomized controlled trial of an integrated intervention for HIV-positive IDUs, and the characteristics of the baseline sample.

METHODS

HIV-positive IDUs were recruited from community settings in 4 US cities. After completing a baseline assessment, participants who attended the first session were randomly assigned to (1) a 10-session peer mentoring intervention designed to improve utilization of HIV care, to improve adherence to HIV medications, and to reduce sexual and injection risk or (2) an 8-session videotape control. Periodic follow-up for 12 months is ongoing.

RESULTS

A total of 1161 HIV-positive IDUs completed the baseline assessment, and 966 (83%) were randomized. Retention rates are greater than 80% for all follow-up periods. Approximately 79% of baseline participants reported a recent medical visit, 49% were taking highly active antiretroviral therapy, and 19% had an undetectable viral load. Use of injection and noninjection substances was prevalent, and sexual and injection risks were each reported by more than 25% of participants.

CONCLUSION

There is a need for an integrated intervention for HIV-positive IDUs, and these data show the acceptability of such an approach.

The Internet and HIV study: design and methods

BACKGROUND

The Internet provides a new meeting ground, especially for gay men, that did not exist in the early 1990s. Several studies have found increased levels of high risk sexual behaviour and sexually transmissible infections (STI) among gay men who seek sex on the Internet, although the underlying processes are not fully understood. Research funded by the UK Medical Research Council (2002-2004) provided the opportunity to consider whether the Internet represents a new sexual risk environment for gay and bisexual men living in London.

METHODS

The objectives of the Internet and HIV study are to: (i) measure the extent to which gay men living in London seek sexual partners on the Internet; (ii) compare the characteristics of London gay men who do and do not seek sex on the Internet; (iii) examine whether sex with Internet-partners is less safe than with other sexual partners; (iv) compare use of the Internet with other venues where men meet sexual partners; (v) establish whether gay men use the Internet to actively seek partners for unprotected anal intercourse; (vi) determine the potential for using the Internet for HIV prevention. These objectives have been explored using quantitative and qualitative research methods in four samples of London gay men recruited and interviewed both online and offline. The four samples were: (i) gay men recruited through Internet chat rooms and profiles; (ii) HIV positive gay men attending an NHS hospital outpatients clinic; (iii) gay men seeking an HIV test in an NHS HIV testing or sexual health clinic; (iv) gay men recruited in the community.

RESULTS

Quantitative data were collected by means of confidential, anonymous self-administered questionnaires (n>4000) completed on-line by the Internet sample. Qualitative data were collected by means of one-to-one interviews (n = 128) conducted either face-to-face or on-line.

CONCLUSION

The strength of the Internet and HIV study is its methodological plurality, drawing on both qualitative and quantitative research among online and offline samples, as well as taking advantage of recent advances in web survey design. The study's findings will help us better understand the role of the Internet in relation to gay men's sexual practice.

Changes in sexual behavior among HIV-infected women after initiation of HAART

OBJECTIVES

We assessed the association between initiation of highly active antiretroviral treatment (HAART) regimens and sexual risk behaviors among HIVinfected women.

METHODS

We analyzed data from 724 women who initiated HAART between January 1996 and January 2001 and who had pre-HAART viral loads at or above 400 copies per milliliter.

RESULTS

Sexually active women were less likely (odds ratio [OR] = 0.79) to report 2 or more partners during a 6-month period after HAART initiation than before HAART initiation. However, the risk for unprotected sex was higher after HAART initiation than before HAART initiation among all sexually active women (both those who reported 2 or more partners [OR = 1.84] and those who reported 1 partner [OR = 1.22]).

CONCLUSIONS

Sexual risk behaviors are associated with receipt of therapy but not with therapeutic response, indicating a risk for transmission among female HAART recipients.

Delivery of HIV prevention counseling by physicians at HIV medical care settings in 4 US cities

OBJECTIVES

We investigated physicians' delivery of HIV prevention counseling to newly diagnosed and established HIV-positive patients.

METHODS

A questionnaire was developed and mailed to 417 HIV physicians in 4 US cities.

RESULTS

Overall, rates of counseling on the part of physicians were low. Physicians reported counseling newly diagnosed patients more than established patients. Factors associated with increased counseling included having sufficient time with patients and familiarity with treatment guidelines. Physicians who perceived their patients to have mental health and substance abuse problems, who served more male patients, and who were infectious disease specialists were less likely to counsel patients.

CONCLUSIONS

Intervention strategies with physicians should be developed to overcome barriers to providing counseling to HIV-positive patients.

Correlates of sexual risk behaviors among HIV-positive men who have sex with men

This study examines correlates of unprotected sexual risk practices of an ethnically diverse sample of HIV-seropositive men who have sex with men (MSM) from the New York City and San Francisco metropolitan areas. Participants completed a self-report survey that assessed sexual risk behaviors and potential correlates. A total of 367 men reported sex with a casual male partner in the previous 3 months. Participants were divided into three groups based on level of HIV-transmission risk with HIV negative or unknown-status partners: no unprotected anal sex (58.9%), unprotected receptive anal sex only (14.2%), and unprotected insertive anal sex (22.6%). Multivariate logistic regression analyses indicated that men reporting unprotected anal insertive sex perceived less responsibility to protect their partners from HIV. Men reporting no unprotected anal sex also reported less use of nitrate inhalants, lower temptation for unsafe sex, and fewer HIV-negative and unknown-status partners. Men reporting unprotected receptive anal sex were less anxious than the other two groups but also reported greater depression than those not reporting unprotected anal sex and greater loneliness than those reporting unprotected anal insertive sex. Implications for interventions with HIV-positive MSM are presented.

Nonnucleoside reverse transcriptase inhibitor resistance among antiretroviral-naive HIV-positive pregnant women

From 1999 to 2001, the overall prevalence of resistance in the antiretroviral (ART)-naive population in St. Louis, Missouri, was 17%. We sought to determine if resistance testing in ART-naive HIV-positive pregnant women identified resistant mutations, which would modify our initial choice of therapy. A retrospective chart review was performed on all HIV-positive pregnant women seen from January 2000 to December 2001 at a university hospital. There were 72 pregnancies. Twenty-seven of 72 patients were ART naive. Genotype testing was performed in 18 of 27 naive patients. Three of 18 ART-naive patients (17%) had primary resistance (95% CI: 4%-41%) by genotype to NNRTIs. The primary mutation, G190S, conferring resistance to NNRTIs was present in 1 patient. Another had the K103N mutation. One had the K103R mutation, which conferred phenotypic resistance to NNRTIs by 8.3-fold, warranting a change in the initial regimen. In our community, resistance testing in ART-naive pregnant patients is warranted. Switching later to a more complex regimen during pregnancy may adversely affect adherence, resulting in virologic failure. Strategies to avoid prescribing a suboptimal regimen include waiting to initiate ART until the resistance testing results are available and/or beginning ART with a protease inhibitor-based regimen if the patient is already in the third trimester of pregnancy at the time of her initial clinic presentation.