Increase in the share of steady partners as a source of HIV infection: a 17-year study of seroconversion among gay men

Behaviors of recently HIV-infected men who have sex with men in the year postdiagnosis: effects of drug use and partner types

OBJECTIVES

Assess behavior change of recently HIV-infected men who have sex with men (MSM).

METHODS

From 2002 to 2006, 193 recently HIV-infected MSM in the Southern California Acute Infection and Early Disease Research Program were interviewed every 3 months. Changes in HIV status of partners, recent unprotected anal intercourse (UAI), drug use, use of antiretroviral therapy (ART), detectable viral load, and partnership dynamics over 1 year were used to predict recent UAI in a random effect logistic regression.

RESULTS

Over a year significantly fewer partners in the past 3 months were reported (mean 8.81 to 5.84; P < 0.0001). Percentage of recent UAI with HIV-status unknown last partners decreased from enrollment to 9 months (49%-27%) and rebounded at 12 months to 71%. In multivariable models controlling for ART use, recent UAI was significantly associated with: baseline methamphetamine use [adjusted odds ratio (AOR): 7.65, 95% confidence interval (CI): 1.87 to 31.30], methamphetamine use at follow-up (AOR: 14.4, 95% CI: 2.02 to 103.0), HIV-uninfected partner at follow-up (AOR: 0.14, 95% CI: 0.06 to 0.33), and partners with unknown HIV status at follow-up (AOR: 0.33, 95% CI: 0.11 to 0.94). HIV viral load did not influence rate of UAI.

CONCLUSIONS

Transmission behaviors of these recently HIV-infected MSM decreased and serosorting increased after diagnosis; recent UAI with serostatus unknown or negative partners rebounded after 9 months, identifying critical timepoints for interventions targeting recently HIV-infected individuals. There was no evidence in this cohort that the viral load of these recently infected men guided their decisions about protected or unprotected anal intercourse.

HIV risk among young African American men who have sex with men: a case-control study in Mississippi

OBJECTIVES

We conducted a case-control study in the Jackson, Mississippi, area to identify factors associated with HIV infection among young African American men who have sex with men (MSM).

METHODS

During February to April 2008, we used surveillance records to identify young (16-25 years old) African American MSM diagnosed with HIV between 2006 and 2008 (case participants) and recruited young African American MSM who did not have HIV (controls). Logistic regression analysis was used to assess factors associated with HIV infection.

RESULTS

In a multivariable analysis of 25 case participants and 85 controls, having older male partners (adjusted odds ratio [OR] = 5.5; 95% confidence interval [CI] = 1.8, 17.3), engaging in unprotected anal intercourse with casual male partners (adjusted OR = 6.3; 95% CI = 1.8, 22.3), and being likely to give in to a partner who wanted to have unprotected sex (adjusted OR = 5.0; 95% CI = 1.2, 20.6) were associated with HIV infection.

CONCLUSIONS

Given the high prevalence of risk behaviors among the young African American MSM in our study, HIV prevention efforts must begin before or during early adolescence and need to focus on improving negotiation and communication regarding sex.

Relationship characteristics and motivations behind agreements among gay male couples: differences by agreement type and couple serostatus

Gay men in relationships are often overlooked in HIV prevention efforts, yet many engage in sexual behaviors that increase their HIV risk and some seroconvert as a result. While different aspects of gay male relationships have been studied, such as sexual agreements, relationship characteristics, and couple serostatus, little research combines these elements to examine HIV risk for this population. The present study recruited 566 gay male couples from the San Francisco Bay Area to study their sexual agreements, motivations behind making agreements, and other relationship characteristics, such as agreement investment, relationship satisfaction, intimacy, and communication. Participants rated their level of concurrence with a set of reasons for making their agreements. They were also measured on relationship characteristics using standard instruments. Analyses were conducted by agreement type (monogamous, open, and discrepant) and couple serostatus (concordant negative, concordant positive, and discordant). A majority reported explicitly discussing their agreements and nearly equal numbers reported being in monogamous and open relationships. A small number (8%) reported discrepant agreements. Across all agreement type and serostatus groups, HIV prevention as a motivator for agreements fell behind every motivator oriented toward relationship-based factors. Only concordant negative couples endorsed HIV and STD prevention among their top motivators for making an agreement. Mean scores on several relationship characteristics varied significantly. Couples with monogamous agreements had higher scores on most relationship characteristics, although there was no difference in relationship satisfaction between couples with monogamous and open agreements. Scores for concordant positive couples were distinctly lower compared to concordant negative and discordant couples. Agreements, the motivations behind them, and the relationship characteristics associated with them are an important part of gay male relationships. When examined by agreement type and couple serostatus, important differences emerge that must be taken into account to improve the effectiveness of future HIV prevention efforts with gay couples.

Seroconversion in context

This paper describes the accounts that homosexually active men give of their HIV seroconversion and interrogates these accounts for risk discourses. In particular, this paper asks whether the risk discourses of HIV researchers and educators are present in the men's narratives of their own seroconversion. Such discourses make reference to 'unsafe' sex--particularly the practice of unprotected anal intercourse, numbers of sexual partners or 'promiscuity', and the disinhibiting effect of drugs and alcohol. The data are drawn from an ongoing case-series study of seroconversion in which men who had seroconverted were asked to give an account of the occasion on which they believe they were infected. A number of themes were identified in the men's accounts. The men's descriptions of what they believe to be the seroconversion event indicate that their attributions, i.e., the reasons they give for their HIV infection, vary depending on the context. Within regular relationships, breakdown of negotiated safety, love and intimacy, and fatalism were among the explanations given. Seroconversion attributed to casual sexual encounters was more likely to be explained in terms of pleasure, lack of control, and with reference to particular sexual settings. The ways in which men understood their HIV infection were informed both by the risk discourse of HIV researchers and also by the discourses of love and pleasure, as well as that of control.

Does age affect sexual behaviour among gay men in Sydney, Melbourne and Brisbane, Australia?

Concern internationally that young gay men are at increased risk of HIV infection has not been reflected in earlier findings in Australia where younger men have not been found to be at increased likelihood to engage in unprotected anal intercourse with casual partners (UAIC). There has, however, been little attention paid to the issue of age in relation to HIV risk behaviour in Australia in recent years. In 2007, among men who completed Gay Community Periodic Survey questionnaires in Sydney, Melbourne and Brisbane, Australia, younger men were more likely to report being in relatively short-term monogamous relationships than were their older counterparts. They were also less likely to know their own or their partners' HIV serostatus. Men aged less than 25 years reported fewer recent partners and were less likely to report sex with casual male partners in the previous six months (p<0.001). Younger men were also less likely to engage in group sex. Approximately, one-quarter of the sample reported engaging in any UAIC in the previous six months during each year of the survey. Younger men were no less likely to report UAIC overall, but they were somewhat more likely to report taking the receptive position during UAIC. While age is a consideration in the assessment of risk of HIV transmission among gay men, this risk is dependent upon the context in which it occurs: Age mixing may be an important consideration in understanding HIV risk among young gay men.

Development and validation of the sexual agreement investment scale

Sexual agreements are ubiquitous among gay men. Lower levels of investment in these agreements may be associated with breaking them or engaging in risky sexual behavior. A scale was developed to measure agreement investment levels among gay men. Qualitative data from 78 gay men in committed relationships were analyzed to inform item development, followed by quantitative analyses of two larger samples (n = 380, n = 1,001) to assess construct, convergent, and discriminant validity. The Sexual Agreement Investment Scale (SAIS) is a psychometrically sound measure of the level of investment in sexual agreements among gay men in relationships. Men with higher agreement investment were less likely to break agreements and less likely to engage in unprotected anal intercourse with outside partners. The SAIS can be used to measure investment in sexual agreements and its impact on sexual behavior in a wide variety of settings, including research on relationships, sexuality, couples therapy and HIV prevention.

Estimating the proportion of HIV transmissions from main sex partners among men who have sex with men in five US cities

BACKGROUND

HIV incidence in the United States among men who have sex with men (MSM) has been increasing since 2000, and MSM remain the most heavily impacted risk group in the US HIV epidemic.

METHODS

We modeled HIV transmissions, using data from MSM in five US cities from the National HIV Behavioral Surveillance System, the HIVNET Vaccine Preparedness Study, and other published data. Annual HIV transmissions were estimated by partner type (main or casual) and by sex type (receptive anal intercourse, insertive anal intercourse, or oral sex).

RESULTS

Sixty-eight percent [95% confidence interval (CI) 58-78) of HIV transmissions were from main sex partners because of a higher number of sex acts with main partners, more frequent receptive roles in anal sex with main partners, and lower condom use during anal sex with main partners. By sex type, 69% (95% CI 59-79) of infections were from receptive anal intercourse, 28% (95% CI 19-38) were from insertive anal intercourse, and 2% (95% CI 0-5) were from oral sex. The model-based estimated HIV incidence rate was 2.2% (95% CI 1.7-2.7) per year. Sensitivity analyses demonstrated estimates of transmission from main sex partners as low as 52% (95% CI 41-62) and as high as 74% (95% CI 68-80).

CONCLUSION

According to our model, most HIV transmissions among MSM in five US cities are from main sex partners. HIV prevention efforts should take into account the risks of HIV transmissions in male partnerships, and couples-based HIV prevention interventions for MSM should be given high priority in the US HIV prevention research portfolio.

Determinants of HIV seroconversion among men who have sex with men living in a low HIV incidence population in the era of highly active antiretroviral therapies

OBJECTIVE

To estimate human immunodeficiency virus (HIV) incidence and associated risk factors among men who have sex with men (MSM) participating in the Omega Cohort Study in Montreal, 1996-2003.

METHODS

Longitudinal study of 1587 MSM seronegative at baseline with > or =1 six-month follow-up visit. Multivariate Cox regression with time-dependent variables was used for data analysis.

RESULTS

HIV incidence was 0.62 per 100 person-years (95% confidence interval: 0.41-0.84). In multivariate analyses compared with subjects not reporting any anal sex with serodiscordant or casual partners, those reporting anal sex with such partners (all P values <0.05), whether consistently protected [hazard ratio (HR) = 3.4], or unprotected exclusively receptive (HR = 12.0), exclusively insertive (HR = 4.7), or both receptive and insertive (HR = 8.3), were at increased risk of seroconversion. Sexual behaviors with seroconcordant regular partners were not associated with seroconversion.

CONCLUSION

These results observed in a cohort of MSM with low HIV incidence provide new insights regarding the debate about harm-reduction strategies to prevent sexual HIV transmission.

Unprotected sex in regular partnerships among homosexual men living with HIV: a comparison between sero-nonconcordant and seroconcordant couples (ANRS-EN12-VESPA Study)

OBJECTIVE

We investigated factors associated with unprotected sex in regular partnerships among homosexual men living with HIV.

METHOD

We used data from a French national representative sample of people living with HIV (ANRS-EN12-VESPA survey). This analysis included men in a regular partnership with another man for at least twelve months. Unprotected sex was defined as reporting at least one episode of sexual intercourse without a condom with this regular partner in the previous 12 months. Separate analyses were conducted in sero-nonconcordant couples and in HIV-positive seroconcordant couples.

RESULTS

285 and 193 homosexual men respectively reported a regular sero-nonconcordant and seroconcordant partner. Unprotected sex was reported by a higher number of respondents within seroconcordant (46.7%) than within sero-nonconcordant couples (15.6%). In both seroconcordant and sero-nonconcordant partnerships, unprotected sex was significantly more frequent when episodes of unprotected sex with casual partners were reported. In seroconcordant couples, those who had more than four casual partners were also more likely to practise unprotected sex with their regular partner. Among sero-nonconcordant couples, binge drinking and absence of disclosure of one's HIV-positive status to the partner were also independently associated with unprotected sex.

CONCLUSIONS

A limited number of sero-nonconcordant homosexual couples persist in reporting risky sexual behaviour. Prevention messages should encourage communication and HIV disclosure. The relationship between unprotected sex with both casual and regular partners also calls attention about the underlying psycho-social and interactional factors that may influence sexual behaviours of people living with HIV in regular relationships, independently of the status of the partner.

Awareness of non-occupational HIV postexposure prophylaxis among French people living with HIV: the need for better targeting

BACKGROUND

Since 1998, French HIV prevention guidelines have recommended the use of HIV post-exposure prophylaxis (PEP) after unprotected sex with a HIV-positive partner who should be informed about this option. This study analysed factors associated with PEP awareness in a population of individuals living with HIV/AIDS (PLHAs).

METHODS

In 2003, a face-to-face survey was conducted among PLHAs selected from a random stratified sample of 102 French hospital departments delivering HIV care. Those who knew about PEP and those who did not were compared to identify factors related to PEP awareness in the sub-sample who reported that they had been sexually active in the prior 12 months.

RESULTS

Among the 2,280 sexually active PLHAs, the median age was 40 years. Women comprised 26% of the sample, 41% were homosexual men and 16% were immigrants. Thirty percent of individuals reported not being aware of the availability of PEP. After multiple adjustment, factors associated with lack of PEP awareness were a low educational level, unemployment, older age, and CD4 cell counts<200. In addition, homosexual men showed a higher level of PEP awareness compared with the other participants, especially when compared with immigrant heterosexual men and women. Individuals who reported having unprotected sex with a non-HIV-positive steady partner also independently showed lower levels of PEP awareness. Finally, reporting having casual partners was associated with better awareness.

CONCLUSION

Awareness of PEP is insufficient among PLHAs, especially among immigrants. Programmes aimed at improving positive prevention among PLHAs are much needed and should be promoted.

Negotiated nonmonogamy and male couples

One issue that has the potential to confound family or couples therapists working with male couples is the issue of nonmonogamy. For many therapists, sexual nonexclusivity challenges fundamental clinical assumptions that "affairs," or extra-relationship sex or romantic involvements, are symptoms of troubled relationships and are always a form of "sexual acting out." This article explores the issue of sexual exclusivity and nonexclusivity within male couples. In order to achieve both clinical and cultural competency in work with male couples, therapists need to challenge their cultural biases regarding monogamy.

Number of risk acts by relationship status and partner serostatus: Findings from the HIM cohort of homosexually active men in Sydney, Australia

In recent years, increases in both risk behavior and in seroconversion among homosexually active men have been noted in a number of parts of the world. Data were available from 903 HIV negative homosexual men regarding number of acts of unprotected anal intercourse (UAI), separated into receptive and insertive UAI, with and without ejaculation, with steady and with casual partners. Partners were classified according to serostatus as reported by respondents. Men (N = 325) reported 13,692 UAI acts, most of which were with steady partners, of whom most were reported to be HIV-negative. With HIV-positive partners, both steady and casual, and with casual partners of unknown serostatus, receptive UAI with ejaculation was relatively rare. Insertive UAI without ejaculation was relatively common with casual partners of unknown serostatus. Patterns of UAI suggest that risk of transmission may be greater with steady partners. Men appear to modify practice according to both the nature of the relationship (steady or casual) and (assumed) serostatus of partner.

Vulnerability to HIV among regular male partners and the social coding of intimacy in modern societies

Recent studies suggest that regular male partners who engage in unprotected anal intercourse (UAI) are currently at risk of HIV infection. In this paper, we try to offer a single and coherent theoretical framework to understand this profile of HIV infection. Data on transformations of intimacy in recent times, UAI and condom use between regular male partners and their correlates are reviewed. Firstly, we describe the social and historical context of modern intimate relationships. The differentiation of intimate relationships and their newfound autonomy from traditional social forces are explored to determine how they may contribute to the destabilization of intimate trajectories. Secondly, we theorize UAI as an attempt to stabilize intimate relationships and a strategy to reaffirm mutual trust, desire and intimacy between regular male partners. The impacts of such an approach to social vulnerability and HIV prevention are also discussed.

HIV-specific social support predicts less sexual risk behavior in gay male couples

Gay male couples (N = 47) completed self-administered questionnaires at 2 time points (6 months apart) regarding their levels of general and HIV-specific social support and sexual behavior. HIV-specific social support measured partner support pertaining to HIV risk behavior. The sexual-risk-behavior outcome encapsulated monogamy, serostatus, and unprotected anal sex for each partner. The authors used an analytic approach that maintained the couple as the unit of analysis. General social support was an inconsistent predictor of HIV risk behavior. However, couples that reported greater levels of HIV-specific social support engaged in less HIV risk behavior at each time point as well as longitudinally. This study demonstrated the utility of measuring HIV-specific social support and its predictive ability related to HIV risk behavior.

Associations of race/ethnicity with HIV prevalence and HIV-related behaviors among young men who have sex with men in 7 urban centers in the United States

Using data from a multisite venue-based survey of male subjects aged 15 to 22 years, we examined racial/ethnic differences in demographics, partner type, partner type-specific condom use, drug use, and HIV prevalence in 3316 US black, multiethnic black, Latino, and white men who have sex with men (MSM). We further estimated associations of these factors with HIV infection and their influence on racial/ethnic disparities in HIV prevalence. HIV prevalences were 16% for both black and multiethnic black participants, 6.9% for Latinos, and 3.3% for whites. Paradoxically, potentially risky sex and drug-using behaviors were generally reported most frequently by whites and least frequently by blacks. In a multiple logistic regression analysis, positive associations with HIV included older age, being out of school or work, sex while on crack cocaine, and anal sex with another male regardless of reported condom use level. Differences in these factors did not explain the racial/ethnic disparities in HIV prevalence, with both groups of blacks experiencing more than 9 times and Latinos experiencing approximately twice the fully adjusted odds of infection compared with whites. Understanding racial/ethnic disparities in HIV risk requires information beyond the traditional risk behavior and partnership type distinctions. Prevention programs should address risks in steady partnerships, target young men before sexual initiation with male partners, and tailor interventions to men of color and of lower socioeconomic status.

Unrecognized HIV infection, risk behaviors, and perceptions of risk among young men who have sex with men: opportunities for advancing HIV prevention in the third decade of HIV/AIDS

This study evaluated the magnitude and distribution of unrecognized HIV infection among young men who have sex with men (MSM) and of those with unrecognized infection, the prevalence and correlates of unprotected anal intercourse (UAI), perceived low risk for infection, and delayed HIV testing. MSM aged 15-29 years were approached, interviewed, counseled, and tested for HIV at 263 randomly sampled venues in 6 US cities from 1994-2000. Of 5649 MSM participants, 573 (10%) tested positive for HIV. Of these, 91% of black, 69% of Hispanic, and 60% of white MSM (77% overall) were unaware of their infection. The 439 MSM with unrecognized infection reported a total of 2253 male sex partners in the previous 6 months; 51% had UAI; 59% perceived that they were at low risk for being infected; and 55% had not tested in the previous year. The HIV epidemic among MSM in the United States continues unabated, in part, because many young HIV-infected MSM are unaware of their infection and unknowingly expose their partners to HIV. To advance HIV prevention in the third decade of HIV/AIDS, prevention programs must reduce unrecognized infection among young MSM by increasing the demand for and availability of HIV testing services.

Sexual harm reduction practices of HIV-seropositive gay and bisexual men: serosorting, strategic positioning, and withdrawal before ejaculation

OBJECTIVE

This study assessed unprotected anal and oral sex behaviors of HIV-positive gay and bisexual men in New York City and San Francisco with their main and non-main sexual partners. Here we focus on the use of three harm reduction strategies (serosorting, strategic positioning, and withdrawal before ejaculation) in order to decrease transmission risk.

METHOD

The data from a baseline assessment of 1168 HIV-positive gay and bisexual men in the two cities were utilized. Men were recruited from a variety of community-based venues, through advertising and other techniques.

RESULTS

City differences were identified, with more men in San Francisco reporting sexual risk behaviors across all partner types compared with men in New York City. Serosorting was identified, with men reporting significantly more oral and anal sex acts with other HIV-positive partners than with HIV-negative partners. However, men also reported more unprotected sex with partners of unknown status compared with their other partners. Some evidence of strategic positioning was identified, although differences were noted across cities and across different types of partners. Men in both cities reported more acts of oral sex without ejaculation than with ejaculation, but the use of withdrawal as a harm reduction strategy for anal sex was more common among men from San Francisco.

CONCLUSION

Overall, evidence for harm reduction was identified; however, significant differences across the two cities were found. The complicated nature of the sexual practices of gay and bisexual men are discussed, and the findings have important implications for prevention efforts and future research studies.

Similar Sexual Behaviors With Casual Partners Among Gay Men With and Without a Regular Partner

OBJECTIVES

We hypothesized that men in a relationship would engage in less risky sexual activity with their casual partners compared to men with only casual partners.

STUDY

Cross-sectional data were collected between 1999 and 2003 in a study of young human immunodeficiency virus-seronegative gay men in Vancouver, British Columbia. We assessed the substance use and sexual behaviors of 156 men and compared those having casual partners in addition to 1 regular partner for the duration of the previous year (n = 43) to those reporting only casual partners during the previous year (n = 113).

RESULTS

Men with just 1 regular partner were not significantly different from men without a regular partner with regard to sexual behaviors reportedly engaged in with casual partners, self-reported sexually transmitted infections diagnosed within the previous year, or demographic characteristics. Only previous use of poppers and higher frequencies of marijuana use were found among men without a regular partner.

CONCLUSIONS

In our cohort, young gay men in a relationship do not appear less likely to engage in risky sex with casual partners than men with casual partners only.

Behavioral and cognitive barriers to safer sex between men in steady relationships: implications for prevention strategies

Steady partners are a major source of HIV infection among gay men. To better understand sexual risk taking in steady relationships, we examined characteristics of the first incident of unprotected anal intercourse (UAI) between steady male partners. We also examined cognitive barriers to safer sex by way of associating beliefs regarding UAI with protective behavior. Questionnaires assessing sexual behavior and related cognitions were completed by 324 gay men, aged 18-34. Of the men who had UAI with their steady partners, 55% (103/189) did so within the first 3 months of the relationship, and 46% did not discuss having UAI with their partner before it occurred. Analyses revealed that perceiving UAI as a symbol of trust and believing that the partner desired UAI were associated with less condom use but also with a higher likelihood that men established HIV-negative seroconcordance and made sexual agreements (i.e., practiced negotiated safety). Perceiving UAI as more gratifying was associated with having risky UAI. Our findings suggest that interventions can make use of beliefs regarding trust and partner's desire for UAI to promote negotiated safety. In relationships where negotiated safety cannot be implemented, HIV prevention should regard the above beliefs, in particular the perception that UAI is more gratifying, as important barriers to safer sex. Furthermore, our findings regarding the early onset of risk in relationships emphasize how little time is at hand to prevent sexual risk before it occurs. One solution could be to target single gay men for promoting safer sex with future steady partners.

The contribution of steady and casual partnerships to the incidence of HIV infection among homosexual men in Amsterdam

OBJECTIVE

To assess the relative contribution of steady and casual partnerships to the incidence of HIV infection among homosexual men in Amsterdam, and to determine the effect of increasing sexually risky behaviours among both types of partners in the era of highly active antiretroviral therapy (HAART).

METHODS

A mathematical model was developed for the spread of HIV infection among young homosexual men in Amsterdam after the introduction of HAART. The model describes the formation of both steady and casual partnerships. Behavioural parameters were estimated separately for steady and casual partners from the Amsterdam Cohort Study among young homosexual men. HIV incidence and the fraction of new infections attributed to casual contacts were calculated from the model, allowing for uncertainty in the increases in risky behaviour, the effect of HAART, and levels of HIV testing and HAART administration.

RESULTS

Currently, 86% (range 74-90%) of new HIV infections occur within steady partnerships. A reduction of 75-99% in infectivity caused by HAART will be counterbalanced by increases of 50% (range 30-80%) in risky behaviour with steady partners, but not by increases of up to 100% with casual partners. If HIV testing is increased from 42 to 80% and HAART administration from 70 to 85%, then even an increase of 100% in risk-taking with steady partners will not outweigh the effect of HAART.

CONCLUSION

Most new HIV infections among homosexual men in Amsterdam occur within steady relationships. Prevention measures should address risky behaviour, specifically with steady partners, and the promotion of HIV testing.