HIV risks among injecting and non-injecting female partners of men who inject drugs in Almaty,Kazakhstan: Implications for HIV prevention,research, and policy

BackgroundKazakhstan and other countries in Central Asia are experiencing a rapidly growing HIV epidemic, which has historically been driven by injection drug use, but is more recently being fueled by heterosexual transmission.MethodsThis paper examines HIV and HCV infection, as well as sexual and drug-related risks among female partners of men who inject drugs (MWID), comparing females who inject drugs (FWID) to non-injecting female partners on socio-demographic, relationship context, and structural characteristics.ResultsThe prevalence rate of HIV was 30.1% among FWID and 10.4% among non-IDU female partners of MWID. The prevalence rate of HCV was 89.8% among FWID and 14.8% among female non-IDUs. Less than one-fifth of all female participants had access to HIV education and services or harm reduction programs. Although high rates of non-injection drug use and sexual risk behaviors were found among both FWID and non-injecting female partners of MWID, we found that FWID were more likely to be HIV seropositive (aRR = 3.03; 95% CI = 1.78, 5.18) and HCV seropositive than non-IDU females (aRR = 6.05; 95% CI = 4.05, 9.04), were more likely to have used alcohol or drugs before sex (aRR = 1.67; 95% CI = 1.40, 2.00), and were more likely to have used sedatives, barbiturates, tranquilizers, sleeping pills, or painkillers that were not prescribed by a physician (aRR = 17.45; 95% CI = 8.01, 38.01).ConclusionGiven the spread of the HIV epidemic to heterosexual partners in Kazakhstan, more attention is needed in research, prevention, and policies regarding female partners of male injection drug users.     

Social injecting and other correlates of high-risk sexual activity among injecting drug users in northern Vietnam

BackgroundSexual risk and STDs are relatively high among injecting drug users (IDUs) in Vietnam. We sought to determine characteristics of sexually active IDUs and correlates of high-risk sexual practices among IDUs in Bac Ninh province in northern Vietnam.MethodsWe used data collected for a community-based cross-sectional pilot study to identify correlates of recent high-risk sex (>1 sex partner and inconsistent/no condom use in the past year). Factors associated with high-risk sex were identified using logistic regression.ResultsAmong 216 sexually active male IDUs, one third (n = 72) had engaged in high-risk sex within the last year. IDUs who reported injecting with others more frequently, having someone else inject their drugs at last injection, sharing needles or sharing any injection equipment were more likely to have reported recent high-risk sex. Factors independently associated with high-risk sexual activity were not injecting oneself [AOR: 2.22; 95% CI (1.09–4.51)], and sharing needles in the past 12 months [AOR: 2.57; 95% CI (1.10–5.99)].ConclusionsIDUs who inject socially and IDUs who share needles are likely to engage in high-risk sexual behaviours and may serve as an important bridge group for epidemic HIV transmission in Vietnam. In addition to messages regarding the dangers of sharing needles and other injection equipment, preventive interventions among newly initiated IDUs should also focus on reducing sexual risk.     

An examination of places where African American men who have sex with men (MSM) use drugs/drink alcohol: A focus on social and spatial characteristics

BackgroundDrug and alcohol use are risk factors for HIV transmission. Much of the HIV behavioural research has focused on risk without consideration of the social and spatial context of the behaviour. Yet, risk may be specific or unique to place. The purpose of this study was to examine the social and spatial characteristics of places where African American men who have sex with men (AA MSM) use drugs and/or alcohol. Specifically, we examined spatial intensity and clustering of drug/alcohol places and characteristics of their social networks at these places.MethodsParticipants were recruited using outreach, on-line advertisements and word-of-mouth referrals. Inclusion criteria were: age 18 or older and sex with a man in the prior 90 days. Participants (n = 51) completed a socio-spatial inventory in which they provided addresses of n = 187 places where they most recently used drugs and/or drank alcohol. Participants described characteristics of people who were at these places.ResultsThe mean age of participants was 36.5 years (SD = 10.9). Half (51%) identified as gay, 31% bisexual, 4% heterosexual and 10% as not sure/questioning and 27% self-reported HIV positive status. Drug/alcohol places were spatially concentrated in the inner part of the city and evidence of clustering by participant characteristics was present. Of n = 187 places named where the participant drank alcohol or used drugs, 68% were described as a residence (participants or “someone one else's house”), 20% were bars/clubs or restaurants, 8% were outside places and 4% were miscellaneous (e.g. on the bus/car). There were differences in the characteristics of social network members by place-type. At residential places, a greater proportion of networks listed were sex partners or kin, compared to other place-types. A greater proportion of networks listed at bars/clubs/restaurants were gay, knew that the participant had sex with men, and were younger compared to other place-types.ConclusionAA MSM drink alcohol and use drugs in a variety of place-types and with various social network members. Little research has been done on factors that shape the geography of AA MSM substance use. Future research is needed to explore these complex associations.     

Perceived health and alcohol use in individuals with HIV and Hepatitis C who use drugs

BackgroundIndividuals who use illicit drugs are at heightened risk for HIV and/or Hepatitis C Virus (HCV). Despite the medical consequences of drinking for drug-using individuals with these infections, many do drink. In other studies, how individuals perceive their health relates to their engagement in risk behaviors such as drinking. However, among drug-using individuals with HIV and HCV, whether perceived health relates to drinking is unknown.ObjectiveWe examine the association between perceived health and drinking among drug-using individuals with HIV and/or HCV.MethodsIn a large, cross-sectional study, we utilized samples of individuals with HIV (n = 476), HCV (n = 1145), and HIV/HCV co-infection (n = 180), recruited from drug treatment centers from 2005 to 2013. In each sample, we investigated the relationship between perceived health and drinking, using ordinal logistic regressions. We present uncontrolled models as well as models controlled for demographic characteristics.ResultsAmong samples of drug using individuals with HIV and with HCV, poorer perceived health was associated with risky drinking only when demographic characteristics were taken into account (Adjusted Odds Ratios: 1.32 [1.05, 1.67] and 1.16 [1.00, 1.34], respectively). In the smaller HIV/HCV co-infected sample, the association of similar magnitude was not significant (AOR = 1.32 [0.90, 1.93]).ConclusionsDrug using patients with HIV or HCV with poor perceived health are more likely to drink heavily, which can further damage health. However, when demographics are not accounted for, these effects can be masked. Patients' reports of poor health should remind providers to assess for health risk behaviors, particularly heavy drinking.     

Poly drug use,chemsex drug use,and associations with sexual risk behaviour in HIV-negative men who have sex with men attending sexual health clinics

BackgroundRecreational drug use and associated harms continue to be of significant concern in men who have sex with men (MSM) particularly in the context of HIV and STI transmission.MethodsData from 1484 HIV-negative or undiagnosed MSM included in the AURAH study, a cross-sectional, self-completed questionnaire study of 2630 individuals from 20 sexual health clinics in the United Kingdom in 2013–2014, was analysed. Two measures of recreational drug use in the previous three months were defined; (i) polydrug use (use of 3 or more recreational drugs) and (ii) chemsex drug use (use of mephedrone, crystal methamphetamine or GHB/GBL). Associations of socio-demographic, health and lifestyle factors with drug use, and associations of drug use with sexual behaviour, were investigated.ResultsOf the 1484 MSM, 350 (23.6%) reported polydrug use and 324 (21.8%) reported chemsex drug use in the past three months. Overall 852 (57.5%) men reported condomless sex in the past three months; 430 (29.0%) had CLS with ≥2 partners, 474 (31.9%) had CLS with unknown/HIV+ partner(s); 187 (12.6%) had receptive CLS with an unknown status partner. For polydrug use, prevalence ratios (95% confidence interval) for association with CLS measures, adjusted for socio-demographic factors were: 1.38 (1.26, 1.51) for CLS; 2.11 (1.80, 2.47) for CLS with ≥2 partners; 1.89 (1.63, 2.19) for CLS with unknown/HIV+ partner(s); 1.36 (1.00, 1.83) for receptive CLS with an unknown status partner. Corresponding adjusted prevalence ratios for chemsex drug use were: 1.38 (1.26, 1.52); 2.07 (1.76, 2.43); 1.88 (1.62, 2.19); 1.49 (1.10, 2.02). Polydrug and chemsex drug use were also strongly associated with previous STI, PEP use, group sex and high number of new sexual partners. Associations remained with little attenuation after further adjustment for depressive symptoms and alcohol intake.ConclusionThere was a high prevalence of polydrug use and chemsex drug use among HIV negative MSM attending UK sexual health clinics. Drug use was strongly associated with sexual behaviours linked to risk of acquisition of STIs and HIV.     

Differential access to syringe exchange and other prevention activities among people who inject drugs in rural and urban areas of Puerto Rico

BackgroundInjection drug use and its associated blood-borne infections has become a rapidly increasing problem in rural areas of the US recently. Syringe exchange programs have been shown to be effective for reducing transmission of blood borne infections, however access to these prevention efforts may be limited in rural areas.MethodsThis paper utilizes two separate community samples of people who inject drugs (PWID) in Puerto Rico to achieve the following research objectives: (1) compare rural and urban access to syringe exchange programs, free sterile syringes and other HIV/HCV prevention activities, and (2) examine whether utilization of prevention activities is associated with lower injection risk behaviors. Two samples were recruited with RDS (n = 315 rural sample; n = 512 urban sample) and included adults aged 18 years and older who have injected drugs within the past month.Results78.5% of the urban sample utilized a syringe exchange program in the past year, compared to 58.4% of the rural sample (p < .001). 71.4% of the urban sample received free sterile needles, compared to 58.4% of the rural sample (p < .001). 66% of the urban sample received free works compared to 59% of the rural sample (p = .034). 29% of urban PWID had a conversation with an outreach worker about HIV prevention compared to 18% of the rural sample (p < 0.001). Receiving free needles significantly increases the frequency of using a sterile needle to inject (p < .001).ConclusionUrban PWID were significantly more likely to have utilized syringe exchange programs, received free sterile needles, received free works, and to have talked about HIV prevention with an outreach worker during the past year than PWID residing in rural areas. Individuals who accessed these prevention activities were significantly less likely to exhibit risky injection behavior. Policy implications call for increasing access to prevention services in rural areas to reduce disease transmission.     

Cross-border injection drug use and HIV and hepatitis C virus seropositivity among people who inject drugs in San Diego,California

BackgroundThe prevalence of HIV and Hepatitis C Virus (HCV) are significantly lower among people who inject drugs (PWID) in San Diego, CA, USA compared with PWID in Tijuana, Mexico, located directly across the border. We investigated associations between cross-border injection drug use (IDU), HIV and HCV seroprevalence and engagement in injecting risk behaviours while on each side of the border.MethodsUsing baseline interviews and serologic testing data from STAHR II, a longitudinal cohort study of PWID in San Diego, bivariate and multivariable logistic regression analyses examined associations between recent (past six months) cross-border IDU and HIV and HCV antibody seropositivity, socio-demographics, drug use characteristics, and participants’ connections to, and perceptions about Mexico. Chi-squared tests and McNemar tests examined associations between cross-border IDU and injecting risk behaviours.ResultsOf the 567 participants (93% U.S.-born, 73% male, median age 45 years), 86 (15%) reported recent cross-border IDU. Cross-border IDU was not associated with HIV (OR: 0.85, 95% CI: 0.37–1.95) or HCV seropositivity (OR: 1.01, 95% CI: 0.62–1.65). Age, identifying as Hispanic or Latino/a, and being concerned about risk of violence when travelling to Mexico were independently associated with decreased odds of recent cross-border IDU. Injecting cocaine at least weekly, having ever lived in Mexico and knowing PWID who reside in Mexico were associated with increased odds of recent cross-border IDU. PWID who reported cross-border IDU were significantly less likely to engage in receptive needle sharing, equipment sharing, and public injection while in Mexico compared with in San Diego (all p < 0.001).ConclusionPrevalence of HIV and HCV infection was similar among PWID who had and had not injected in Mexico, possibly due to practising safer injecting while in Mexico. Research is needed to elucidate contextual factors enabling U.S. PWID to inject safely while in Mexico.     

Does informing people who inject drugs of their hepatitis C status influence their injecting behaviour? Analysis of the Networks II study

BackgroundPeople who inject drugs (PWID) are at risk of hepatitis C virus (HCV). It is plausible that PWID who receive a diagnosis of HCV will reduce their injecting risk out of concern for their injecting partners, although evidence for this is currently limited. The aim of this study was to investigate whether informing PWID of their HCV diagnosis was associated with a change in injecting behaviour.MethodsProspective, longitudinal study of PWID recruited from street drug markets across Melbourne, Australia. Interviews and HCV testing were conducted at 3-monthly intervals. The association between receiving a diagnosis of HCV and (i) injecting frequency and (ii) injecting equipment borrowing, was examined using generalized estimating equations (GEE) analysis.ResultsThirty-five individuals received a diagnosis of HCV during the study period. Receiving a diagnosis of HCV was associated with a decrease of 0.35 injections per month (p = 0.046) but there was no change in injecting equipment borrowing (p = 0.750).ConclusionsA small reduction in injecting frequency was observed in PWID who received a diagnosis of HCV. This finding should be investigated further in larger studies examining a wider range of injecting risk behaviours.     

The complex interplay of social networks,geography and HIV risk among Malaysian Drug Injectors: Results from respondent-driven sampling

BackgroundHIV is primarily concentrated among people who inject drugs (PWID) in Malaysia, where currently HIV prevention and treatment coverage is inadequate. To improve the targeting of interventions, we examined HIV clustering and the role that social networks and geographical distance play in influencing HIV transmission among PWID.MethodsData were derived from a respondent-driven survey sample (RDS) collected during 2010 of 460 PWID in greater Kuala Lumpur. Analysis focused on socio-demographic, clinical, behavioural, and network information. Spatial probit models were developed based on a distinction between the influence of peers (individuals nominated through a recruitment network) and neighbours (residing a close distance to the individual). The models were expanded to account for the potential influence of the network formation.ResultsRecruitment patterns of HIV-infected PWID clustered both spatially and across the recruitment networks. In addition, HIV-infected PWID were more likely to have peers and neighbours who inject with clean needles were HIV-infected and lived nearby (<5 km), more likely to have been previously incarcerated, less likely to use clean needles (26.8% vs 53.0% of the reported injections, p < 0.01), and have fewer recent injection partners (2.4 vs 5.4, p < 0.01). The association between the HIV status of peers and neighbours remained significantly correlated even after controlling for unobserved variation related to network formation and sero-sorting.ConclusionThe relationship between HIV status across networks and space in Kuala Lumpur underscores the importance of these factors for surveillance and prevention strategies, and this needs to be more closely integrated. RDS can be applied to identify injection network structures, and this provides an important mechanism for improving public health surveillance, accessing high-risk populations, and implementing risk-reduction interventions to slow HIV transmission.     

Low HIV testing rate and its correlates among men who inject drugs in Iran

BackgroundIran has a concentrated HIV epidemic among people who inject drugs (PWID). Low HIV testing uptake could contribute to the significant number HIV-infected PWID, who go undiagnosed. This study aims to assess HIV testing uptake and its correlates among PWID in Iran.MethodsData were collected through a national cross-sectional bio-behavioral study in 2010. Adult male HIV-negative PWID were included in the current analysis. All estimates were adjusted for the clustering effect of the sampling sites. Multivariable logistic regression was used to examine the correlates of recent HIV testing and adjusted odds ratios (AOR) were reported.ResultsOut of the 2146 eligible PWID for this study, 49.8% reported having ever tested for HIV. However, only 24.9% had tested in the previous year and received their test results. Around 65.2% of PWID knew an HIV testing site. In the multivariable analysis, knowing an HIV testing site (AOR = 13.9; P-value < 0.001), ≥24 years of age (AOR = 3.30; P-value = 0.027), and multiple incarcerations (AOR = 1.71; P-value < 0.001) were positively, and a monthly income of ≥65 US dollar (AOR = 0.23; P-value = 0.009) was negatively associated with having been tested and received the results.ConclusionDespite the availability of free HIV counselling and testing for PWID in Iran, only one-fourth of adult male PWID had been tested for HIV and received their results. Implementing policies and strategies to normalize routine HIV testing among PWID are crucial steps to help curb the epidemic among Iranian PWID.     

Fatal and non-fatal overdose after narcology hospital discharge among Russians living with HIV/AIDS who inject drugs

ObjectivesAmong Russians living with HIV/AIDS who inject drugs, we examined the incidence of fatal and non-fatal overdoses following discharge from a narcology hospital and the associations with more advanced HIV infection.DesignProspective cohort study of data collected at baseline, 3 and 6 months from HIV-infected patients with a history of injection drug use who were not treated with anti-retroviral therapy. Participants were recruited between 2012–2014 from a narcology (addiction) hospital in St. Petersburg, Russia.MethodsFatal overdose was determined based on contact reports to study staff in the year after discharge. Non-fatal overdose was self-reported at the 3- and 6-month assessments. The main independent variable for HIV severity was CD4 cell count at the baseline interview (<200 cells/mm³ ≥ 200 cells/mm³). Secondary analyses assessed time since HIV diagnosis and treated with anti-retroviral treatment (ART) prior to enrolment as independent variables. We fit Cox proportional hazards models to assess whether HIV severity is associated with either fatal or non-fatal overdose.ResultsAmong 349 narcology patients, 18 participants died from overdose within one year after discharge (8.7%, 95% CI 3.4–14.2 by Kaplan–Meier); an estimated 51% [95% CI 34–68%] reported at least one non-fatal overdose within 6 months of discharge. HIV severity, time since HIV diagnosis and ever ART were not significantly associated with either fatal or non-fatal overdose events.ConclusionFatal and non-fatal overdose are common among Russians living with HIV/AIDS who inject drugs after narcology hospital discharge. Overdose prevention interventions are urgently warranted among Russian narcology patients with HIV infection.     

Injection into the jugular vein among people who inject drugs in the United Kingdom: Prevalence,associated factors and harms

BackgroundWhile people who inject drugs (PWID) typically use peripheral veins, some inject into their central veins, including the femoral and jugular veins. Injection into the jugular vein can have serious adverse health consequences, including jugular vein thrombosis, deep neck infections, pneumothorax, endocarditis and sepsis. This study examined the prevalence of, and factors associated with, jugular vein injection among a large sample of PWID in the United Kingdom.MethodUnlinked anonymous surveys (2011–14) recruited PWID from agencies providing services to this population. Self-reported demographic and injection-related data were collected from consenting respondents using a brief questionnaire and dried blood spot samples were tested for exposure to HIV, hepatitis C virus (HCV) and hepatitis B virus (HBV). Univariate and multivariable logistic regression were used to examine factors associated with jugular vein injection.ResultsAmong 5261 PWID, one third had injected into a central vein in the previous 28 days, including 6% (n = 339) who had injected into their jugular vein and 1% (n = 52) who had used this site exclusively for recent injections. Factors independently associated with recent jugular vein injection in multivariable analysis included female gender, a lifetime history of imprisonment, sharing needles and syringes, poly-drug injection and injection into multiple body sites. Jugular vein injection was also associated with experiencing injection-related injuries, although no associations were identified with respect to exposure to blood borne viral infections.ConclusionA significant minority of PWID inject into the jugular vein in the United Kingdom. Public health responses should investigate ways to support and promote good injection site management in order to minimise vascular damage and reduce problems with peripheral venous access. Women who inject drugs, PWID with a history of imprisonment and those people who are experiencing early signs of injection-related skin and soft tissue injuries are priority sub-populations for interventions.     

Illicit drug use among gay and bisexual men in 44 cities: Findings from the European MSM Internet Survey (EMIS)

BackgroundAnecdotal evidence suggests that men who have sex with men (MSM) are increasingly combining sex and illicit drugs (an activity referred to as ‘chemsex’), in particular GHB/GBL, ketamine, crystal meth, or mephedrone (here called 4-chems). Use of such drugs has been associated with mental health and sexual health harms. We aim to compare patterns of illicit drug use among MSM in 44 European urban centres.MethodsIn 2010, EMIS recruited 174,209 men from 38 countries to an anonymous online questionnaire in 25 languages. As harm reduction services for drugs and sex are organised at a local level, we chose to compare cities rather than countries. We defined 44 cities based on region/postal code and settlement size. For multivariable regression analyses, three comparison groups of MSM not living in these cities were applied: MSM living in Germany, the UK, and elsewhere in Europe.ResultsData from 55,446 MSM living in 44 urban centres were included. Use of 4-chems (past 4 weeks) was highest in Brighton (16.3%), Manchester (15.5%), London (13.2%), Amsterdam (11.2%), Barcelona (7.9%), Zurich (7.0%) and Berlin (5.3%). It was lowest in Sofia (0.4%). The rank order was largely consistent when controlling for age, HIV diagnosis, and number of sexual partners. City of residence was the strongest demographic predictor of chemsex-drug use.ConclusionUse of drugs associated with chemsex among MSM varies substantially across European cities. As city is the strongest predictor of chemsex-drug use, effective harm reduction programmes must include structural as well as individual interventions.     

Injection drug use among female sex workers in Iran: Findings from a nationwide bio-behavioural survey

BackgroundGlobally, one in three women who inject drugs is involved in sex work which increases their vulnerability to sexually transmitted infections including HIV. This study was conducted to improve our understanding of injection drug use practices among Iranian female sex workers (FSWs) and shed light on the high-risk profile of FSWs who inject drugs (FSW-IDUs).MethodsThis survey was conducted in 2010, by recruiting 872 FSWs through facility-based sampling from 21 sites in 13 cities in Iran. Data were collected through face-to-face interviews and lifetime injection drug use was assessed through the responses to the question “Have you ever injected any illicit drugs?”. Independent variables included a range of socio-demographic and risk characteristics. Logistic regression models were applied to investigate the correlates of lifetime history of injection drug use.ResultsMedian (Q1, Q3) age of the participants was 30 (25, 37) and a total of 127 (14.6%, 95% confidence interval (CI): 12.3–17.1) had ever injected drugs. In the multivariable logistic regression model, older age (adjusted odds ratio (AOR) = AOR_{25–34 vs. <18} = 3.37, 95% CI: 1.64, 7.70; AOR_{≥35 vs. <18} = 2.80, 95% CI: 1.11, 7.10), longer duration (>5 years) of involvement in sex work (AOR = 1.06, 95% CI: 1.02, 1.10), and history of drinking alcohol (AOR = 4.42, 95% CI: 2.67, 7.32) were positively associated with lifetime history of drug injection and younger age at sex work debut (AOR = 0.52, 95% CI: 0.28, 0.96) was negatively associated with lifetime history of illicit drug injection among FSWs.ConclusionThe prevalence of injection drug use among FSWs in Iran is concerning. Given the potential of this sub-population in bridging HIV into the general population, gender-sensitive and peer-led harm reduction programs should be further scaled up to meet the special needs of this vulnerable population.     

Prevalence and predictors of HCV among a cohort of opioid treatment patients in Dar es Salaam,Tanzania

BackgroundThe government of Tanzania launched an opioid treatment program (OTP), using methadone, in Dar es Salaam in February of 2011. Hepatitis C virus (HCV) is a leading cause of morbidity and mortality globally, especially among people who inject drugs (PWID). We conducted a cross-sectional study among PWID engaged in OTP in Dar es Salaam to describe the prevalence and predictors of HCV antibody serostatus.MethodsRoutine programmatic data on patients enrolled in Muhimbili National Hospital’s OTP clinic from February 2011 to January 2013 were utilized. Multivariable Poisson regression was used to examine factors associated with HCV antibody serostatus.ResultsA total of 630 PWID enrolled into the OTP clinic during the study period, seven percent of which were women. The overall seroprevalence of HCV antibody was 57% (95% Confidence interval: 53–61%). In adjusted analysis, methadone patients who used heroin for 5–10 years (adjusted prevalence ratio; aPR = 1.41; 95% CI: 1.10–1.81) and >10 years (aPR = 1.48; 95% CI: 1.17–1.88) were more likely to be HCV antibody positive, compared to patients who used heroin for <5 years. Patients who reported sharing needles or other equipment at their last injection (aPR = 1.20; 95% CI: 1.01–1.41; p = 0.022), being arrested (aPR = 1.20; 95% CI: 1.04–1.40; p = 0.012) and who were HIV-positive (aPR = 1.84; 95% CI: 1.56–2.16; p < 0.001) were also more likely to be HCV antibody positive than their counterparts.ConclusionOur observed HCV antibody prevalence among PWID engaged in OTP is higher than previously reported estimates in Dar es Salaam. Predictors of HCV antibody serostatus in this sample were similar to those found among PWID in many other settings. Integrating HCV care and treatment into OTP clinics should be considered, leveraging lessons learned from the integration of HIV services into OTP. Global efforts to develop HCV care and treatment programs in low and middle-income countries are critical, especially among PWID who have a high burden of HCV.     

Chemsex behaviours among men who have sex with men: A systematic review of the literature

Background‘Chemsex’ is the use of drugs before or during planned sexual events to facilitate, enhance, prolong and sustain the experience. Drugs associated with chemsex are methamphetamine, GHB/GBL, mephedrone, cocaine and ketamine. This review syntheses published research on the antecedents, behaviours and consequences associated with chemsex behaviours among men who have sex with men (MSM).MethodsPapers from high income countries which were published between January 2000 and September 2018 reporting the use of chemsex drugs before or during sex were identified through Medline, Web of Science, CINAHL and Central. Results were synthesised using a narrative approach and conceptualised using a behavioural analysis framework.ResultsThe search identified 2492 publications, of which 38 were included in the final synthesis. There were wide variations in chemsex prevalence estimates due to the heterogeneous sampling in the studies. Chemsex participants have expectations that the drugs will positively affect their sexual encounters and HIV positive MSM are more likely to engage in the behaviour than HIV negative MSM. There were wide ranging prevalence estimates on injecting drugs for sexual purposes and the sharing of injecting equipment with some evidence of unsafe injecting practices. Participants were more likely to engage in condomless anal intercourse than men who do not engage in chemsex. This may increase the risk of transmission for HIV and other sexually transmitted infections.ConclusionA minority of MSM appear to engage in chemsex behaviours but they are at risk of this negatively impacting on their health and well-being. Further research is required to examine high risk chemsex behaviours, impact of chemsex on psycho-social well-being and if chemsex influences uptake of PrEP, PEP and sexual health screening.     

HCV prevalence and risk behaviours among injectors of new psychoactive substances in a risk environment in Hungary—An expanding public health burden

BackgroundIn Hungary a large increase in injecting new psychoactive substances (NPS) coincided with decreasing harm reduction efforts and rising HCV infection. We describe these, and assess changes in HCV prevalence and risk behaviours, 2011–2014, among NPS injectors, using 2011–2015 syringe exchange programme (SEP) data as a key contextual (‘risk environment’) variable.MethodsWe conducted repeated national sero-behavioural surveys in people who inject drugs (PWID) injecting in the last month and attending SEPs or drug treatment centres (n = 399, 2011; 384, 2014), using face-to-face interviews and dried blood-spot samples. Prevalence of injected drugs and SEP coverage (2011–2015) were assessed through our national SEP monitoring system and using population size estimates.ResultsNPS injecting tripled among PWID attending SEPs in Hungary (2011: 26%; 2015: 80%). Among NPS injectors, HCV prevalence, sharing syringes and sharing any injecting equipment (last month), doubled (2011–2014: 37%–74%, 20%–48%, 42%–71%, respectively), significantly exceeding prevalence in other PWID groups. Among young NPS injectors (aged < 25), HCV prevalence increased 7-fold (12%–76%), among new injectors (injecting < 2 years) 4-fold (13%–42%), coupled with high levels of equipment sharing (79% and 72% respectively). Not using a condom at last intercourse (79%), ever-imprisonment (65%) and last-year homelessness (57%) were highly prevalent among NPS injectors (2014). The number of syringes distributed per estimated PWID nationally fell from 114 to 81 (2011–2014) and dropped to 28 in 2015.ConclusionNPS injectors in Hungary are at severe risk of blood-borne infections due to high levels of injecting and sexual risk behaviours within a high-risk environment, including continuously low SEP provision, imprisonment and homelessness. An HIV outbreak cannot be excluded. Stronger investment in evidence-based prevention measures, with special focus on young and new injectors, and expansion of hepatitis C treatment are urgently needed.     

Image and performance enhancing drug use among men who have sex with men and women who have sex with women in the UK

BackgroundThe use of image and performance enhancing drugs (IPEDs) among men who have sex with men (MSM) and women who have sex with women (WSW) is rarely studied, with most of this research focused on anabolic androgenic steroid use among MSM. To address this gap, the extent of recent IPED use and the associated factors are explored in a community-recruited sample of MSM and WSWMethodsData from the UK LGBT Sex and Lifestyles Survey was used, which recruited through social-media advertising and community organisations (April-June 2018). Participants were asked if they had taken any IPEDs (e.g. anabolic steroids, growth hormone, hCG, Melanotan, non-prescribed diet pills) in the past 12 months. Factors associated with recent (in past 12 months) IPED use among MSM and WSW were investigated using stepwise binary logistic regression.Results1,658 MSM and 1,507 WSW were included in the analysis. Among MSM, 3.4% (n = 57) had recently taken IPEDs, 60% of those taking IPEDs had used psychoactive drugs. In the multivariable analysis, IPED use among MSM was associated with psychoactive drug use, Viagra use, higher body dissatisfaction, and lower sexual satisfaction. Among WSW, 4.1% (n = 62) had recently taken IPEDs, and 50% of those taking IPEDs had used psychoactive drugs. In the multivariable analysis, IPED use among WSW was associated with being aged 45 years and over, recent STI diagnosis, recent sexual contact without consent, and higher body dissatisfaction.ConclusionIPED use was reported by around 1-in-25 MSM and WSW, and was associated with a number of health and psychological problems. Research to better understand the drivers and impacts of IPED use among MSM and WSW, and how this compares to use among heterosexual people is needed.