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Shobowale O, Schmidt AJ, Meireles P, Rojas Castro D, Detandt S, Stutterheim SE, Weatherburn P, Jonas KJ. Determinants of HIV Testing Among Migrant Men Who Have Sex With Men from Sub-Saharan Africa and Other Regions Residing in 10 European Countries. AIDS Behav 2024; 28:488-506. [PMID: 38326669 PMCID: PMC10876736 DOI: 10.1007/s10461-023-04239-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2023] [Indexed: 02/09/2024]
Abstract
Migrant men who have sex with men (mMSM) from sub-Saharan Africa (SSA) and other regions outside Europe are highly vulnerable to HIV. However, research on the determinants of HIV testing among mMSM from SSA, and how these differ across the categories of mMSM living in Europe, is limited. Using data from the European MSM Internet Survey (EMIS-2017), we assessed HIV testing prevalence and recency in mMSM from SSA and other mMSM residing in ten European countries, as well as the determinants of HIV testing across different mMSM categories with logistic regression analyses. Ever-testing for HIV was slightly higher in mMSM from SSA (83%) compared to other mMSM categories (75-80%), except for mMSM from Latin America and Caribbean region (84%). Overall, 20% of mMSM had never tested. In multivariable analysis, higher age (adjusted odds ratio [AOR] 1.05, 95% confidence interval [CI] 1.01-1.10), higher HIV knowledge (AOR 1.45, 95%-CI 1.11-1.90), and residence in smaller settlements (AOR 0.45, 95%-CI 0.21-0.96) were significantly associated with ever testing for HIV in mMSM from SSA. Comparing mMSM from SSA to mMSM from other regions, we found varying significant similarities (higher age, residence in smaller settlements and HIV knowledge) and differences (lower educational attainment, not identifying as gay, being a student, and limited disclosure of homosexual attraction) in the determinants of ever-testing for HIV. Community-specific interventions addressing identified sociodemographic and behavioral determinants to increase HIV testing uptake in the different mMSM categories and better data for further research are warranted.
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Affiliation(s)
- Oladipupo Shobowale
- Department of Work and Social Psychology, Maastricht University, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands.
| | - Axel J Schmidt
- London School of Hygiene & Tropical Medicine (LSHTM), Sigma Research, London, UK
| | - Paula Meireles
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | | | - Sandrine Detandt
- Faculty of Psychology, Observatoire du Sida et des Sexualités Research Center, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Sarah E Stutterheim
- Department of Health Promotion, Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Peter Weatherburn
- London School of Hygiene & Tropical Medicine (LSHTM), Sigma Research, London, UK
| | - Kai J Jonas
- Department of Work and Social Psychology, Maastricht University, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands
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Traeen B, Fischer N, Grøndahl P. Norwegian Data on Prevalence, Sexual Risk Behaviors, Sexual Problems, and Sexual Satisfaction in Men Who Have Sex Exclusively with Women, Men Who Have Sex Exclusively with Men, and Men Who Have Sex with Men and Women. INTERNATIONAL JOURNAL OF SEXUAL HEALTH : OFFICIAL JOURNAL OF THE WORLD ASSOCIATION FOR SEXUAL HEALTH 2022; 34:702-715. [PMID: 38596394 PMCID: PMC10903632 DOI: 10.1080/19317611.2022.2126056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 06/10/2022] [Accepted: 06/26/2022] [Indexed: 04/11/2024]
Abstract
Objective: This study investigates how men who have sex exclusively with women (MSEW) differ from men who have sex exclusively with men (MSEM), and men who have sex with men and women (MSMW) on selected variables. Methods: A probability-based web sample of 2,181 men was recruited. Results: Most MSEM considered their sexual identity as gay, and most MSMW as heterosexual. The MSEM were the most frequent condom users, while MSMW were the least frequent users and had the highest number of sexual partners. The MSEM and MSMW had a lower likelihood of premature ejaculation than MSEW. Conclusions: MSMW should be targeted in health campaigns.
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Affiliation(s)
- Bente Traeen
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Nantje Fischer
- Department of Psychology, University of Oslo, Oslo, Norway
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Abstract
CONTEXT Men generally seek healthcare less often than women and, other than traditional gender norms, less is known about the explanation. The aim was to identify knowledge gaps and factors influencing men regarding sexual and reproductive healthcare (SRHC) in the Nordic countries. METHODS We searched PubMed and SveMed+ for peer-reviewed articles published between January 2010 and May 2020. The analyses identified factors influencing men's experiences of and access to SRHC. RESULTS The majority of the 68 articles included focused on pregnancy, birth, infertility and sexually transmitted infections including HIV. During pregnancy and childbirth, men were treated as accompanying partners rather than individuals with their own needs. The knowledge and attitudes of healthcare providers were crucial for their ability to provide SRHC and for the experiences of men. Organisational obstacles, such as women-centred SRHC and no assigned healthcare profession for men's sexual and reproductive health issues, hindered men's access to SRHC. Lastly, the literature rarely discussed the impact of health policies on men's access to SRHC. CONCLUSIONS The literature lacked the perspectives of specific groups of men such as migrants, men who have sex with men and transmen, as well as the experiences of men in SRHC related to sexual function, contraceptive use and gender-based violence. These knowledge gaps, taken together with the lack of a clear entry point for men into SRHC, indicate the necessity of an improved health and medical education of healthcare providers, as well as of health system interventions.
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Affiliation(s)
- Mazen Baroudi
- Department of Epidemiology and Global Health, Umeå University Faculty of Medicine, Umea, Sweden
| | - Jon Petter Stoor
- Department of Epidemiology and Global Health, Umeå University Faculty of Medicine, Umea, Sweden
- Centre for Sami Health Research, Department of Community Medicine, UiT The Arctic University of Norway, Tromso, Norway
| | - Hanna Blåhed
- Department of Epidemiology and Global Health, Umeå University Faculty of Medicine, Umea, Sweden
| | - Kerstin Edin
- Department of Epidemiology and Global Health, Umeå University Faculty of Medicine, Umea, Sweden
| | - Anna-Karin Hurtig
- Department of Epidemiology and Global Health, Umeå University Faculty of Medicine, Umea, Sweden
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van Bilsen WP, Zimmermann HM, Boyd A, van Harreveld F, Davidovich U. Factors Associated with Never Testing for HIV: Directions for Targeted Testing Interventions Among Men Who Have Sex with Men. AIDS Patient Care STDS 2021; 35:204-210. [PMID: 34097463 DOI: 10.1089/apc.2021.0024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Men who have sex with men (MSM) and who are unaware of their HIV infection contribute to onward HIV transmission and are more likely to progress to severe illness. We therefore assessed determinants of never testing for HIV among MSM living in the Netherlands. Between April and July 2019, 950 HIV-negative and 122 never-tested MSM completed a cross-sectional survey on sociodemographics, HIV testing behavior, and sexual risk taking, which was distributed through gay networking sites/apps. In never-tested MSM, median age was 37 (interquartile range = 22-51) years and 37 (30%) reported recent sexual risk behavior. Never testing was associated with younger age [adjusted odds ratio (aOR) per year increase = 0.98, 95% confidence interval (CI) = 0.97-1.00, p = 0.015], having sex with men and women (aOR = 2.85, 95% CI = 1.57-5.62, p = 0.001), and not knowing others living with HIV (aOR = 3.85, 95% CI = 2.35-6.32, p < 0.001) in multi-variable logistic regression analysis. A significant interaction effect between education level and residential area was observed (p = 0.001). Among higher-educated MSM, those living outside a large urban area had higher odds of never testing compared to those living in an urban area (aOR = 6.26, 95% CI = 2.42-16.24, p < 0.001). Lower-educated MSM had higher odds of never testing irrespective of residential area (large urban area: aOR = 12.06, 95% CI = 4.00-36.38; outside large urban area: aOR 9.29, 95% CI = 3.64-23.76; p < 0.001 for both). Among MSM recently exposed to sexual risk, never testing was associated with having sex with men and women (aOR = 2.80, 95% CI = 1.09-7.18, p = 0.032) and not knowing others with HIV (aOR = 4.91, 95% CI = 1.97-12.24, p = 0.001). To conclude, testing interventions for those never tested should be tailored to residential area and education level, and inclusive of bisexuality.
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Affiliation(s)
- Ward P.H. van Bilsen
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
| | - Hanne M.L. Zimmermann
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
| | - Anders Boyd
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Stichting HIV Monitoring, Amsterdam, the Netherlands
| | - Frenk van Harreveld
- Department of Social Psychology, University of Amsterdam, Amsterdam, the Netherlands
| | - Udi Davidovich
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Department of Social Psychology, University of Amsterdam, Amsterdam, the Netherlands
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Veronese V, Ryan KE, Hughes C, Lim MS, Pedrana A, Stoové M. Using Digital Communication Technology to Increase HIV Testing Among Men Who Have Sex With Men and Transgender Women: Systematic Review and Meta-Analysis. J Med Internet Res 2020; 22:e14230. [PMID: 32720902 PMCID: PMC7420634 DOI: 10.2196/14230] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 02/20/2020] [Accepted: 04/10/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND HIV continues to disproportionately affect men who have sex with men (MSM) and transgender women (TW). Undiagnosed HIV is a major driver of HIV transmission rates, and increasing the uptake of regular HIV testing and facilitating timely initiation of HIV treatment is a global HIV prevention priority. However, MSM and TW experience a range of barriers that limit their access to testing and other prevention services. Given their growing ubiquity, digital communication technologies are increasingly being used to support HIV prevention efforts, and a growing number of studies have trialed the use of digital technology to promote HIV testing among MSM and TW. OBJECTIVE We undertook a systematic review and meta-analysis to assess the impact of digital communication technology on HIV testing uptake among MSM and TW. Subanalyses aimed to identify the features and characteristics of digital interventions associated with greater impact. METHODS A systematic literature review was undertaken using select databases and conference repositories. Studies describing the use of a digital technology-internet-enabled devices, including phones, tablets, and computers-to increase HIV testing uptake among MSM or TW using either randomized or observational cohort design with measurement of HIV testing rates measured pre- and postintervention, and published in English between 2010 and 2018 were included. Pooled effect estimates were calculated using a random effects meta-analysis. Subanalyses calculated effect estimates grouped by selected features of digital interventions. RESULTS A total of 13 randomized or observational studies were included in the final review. Digital interventions most commonly used mainstream, existing social media platforms (n=7) or promotion through online peer educators (n=5). Most interventions (n=8) were categorized as interactive and allowed user engagement and most directly facilitated testing (n=7) either by providing self-testing kits or referral to testing services. A total of 1930 participants were included across the 13 studies. HIV testing uptake among MSM and TW exposed to digital interventions was 1.5 times higher than that of unexposed MSM and TW (risk ratio [RR] 1.5; 95% CI 1.3-1.7). Subanalyses suggested an increased impact on HIV testing uptake among interventions that were delivered through mainstream social media-based platforms (RR 1.7; 95% CI 1.3-2.1), included direct facilitation of HIV testing (RR 1.6; 95% CI 1.4-1.9), were interactive (RR 1.6; 95% CI 1.4-1.8), and involved end users in the design process (RR 1.6; 95% CI 1.3-2.0). CONCLUSIONS These findings provide broad support for the integration of technology with existing approaches to promote and facilitate HIV testing among MSM and TW. Our findings identified key features that may be associated with greater impact on HIV testing uptake and can be used to inform future development efforts given the growing interest and application of digital technologies in HIV prevention. TRIAL REGISTRATION PROSPERO International Prospective Register of Systematic Reviews CRD42017070055; https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42017070055.
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Affiliation(s)
- Vanessa Veronese
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | | | - Chad Hughes
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | - Megan Sc Lim
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | - Alisa Pedrana
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | - Mark Stoové
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
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Hoyos J, Koutentakis K, Maté T, Pulido J, Sordo L, Guerras JM, Belza MJ. High risk men who have sex with men in Spain are reporting low intentions of actively seeking HIV testing: results from a cross-sectional study. BMC Public Health 2020; 20:398. [PMID: 32216783 PMCID: PMC7099777 DOI: 10.1186/s12889-020-8440-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/02/2020] [Indexed: 11/12/2022] Open
Abstract
Background We analyse unprotected anal intercourses (UAI) self-reported by a sample of men who have sex with men (MSM), by their future testing intentions and past testing history to identify undertested subpopulations that could be contributing to onward transmission. Methods We recruited MSM through gay dating websites in Spain from September 2012 to April 2013. For MSM at risk of acquiring or unknowingly transmitting HIV (at risk hereafter) we calculate time at risk, number of UAI in the last 12 months and last 5 years by testing intention (low intention (LI), Medium intention (MI), high intention (HI)) and past testing history. For never testers we analyse the reasons for not having been tested. Results Of 3272 MSM at risk, 19.8% reported LI of testing. MSM with LI reported the longest period at risk (8.49 years (p < 0.001)) and reported 3.20 UAI/person in the last 12 months (vs. 3.23 and 2.56 in MSM with HI and MI (p < 0.001)) and 12.90 UAI/person in the last 5 years (vs. 8.07 and 9.82 in MSM with HI and MI (p < 0.001)). Those with LI accounted for 21 and 27% of all the UA acts occurring in the last 12 months and the last 5 years. Among never testers (40.6%), those with LI reported lower risk perception (p = 0.006). Conclusion We identified a group of high risk and undertested MSM that could be behind a substantial proportion of the UAIs with potential of transmission/acquisition of HIV. Given their low willingness to seek an HIV test and low risk perception, they constitute a population that will probably require approaches other than client initiated strategies.
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Affiliation(s)
- Juan Hoyos
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Madrid, Spain.,Department of Public Health and Maternal and Child Health, Madrid Complutense University, Madrid, Spain
| | - Kostas Koutentakis
- Carlos III Health Institute, National Center of epidemiology, Madrid, Spain
| | - Tomás Maté
- Primary Health Care Management of East Valladolid, Valladolid, Spain
| | - Jose Pulido
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Madrid, Spain. .,Department of Public Health and Maternal and Child Health, Madrid Complutense University, Madrid, Spain. .,Department of Health Programs, Carlos III Health Institute, National School of Health, Madrid, Spain.
| | - Luis Sordo
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Madrid, Spain.,Department of Public Health and Maternal and Child Health, Madrid Complutense University, Madrid, Spain
| | | | - María-José Belza
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBERESP), Madrid, Spain.,Department of Biostatistics and Epidemiology, Carlos III Health Institute, National School of Health, Madrid, Spain
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Tan RKJ, Kaur N, Chen MIC, Wong CS. Developing a Typology of HIV/STI Testing Patterns Among Gay, Bisexual, and Queer Men: A Framework to Guide Interventions. QUALITATIVE HEALTH RESEARCH 2020; 30:610-621. [PMID: 31517590 PMCID: PMC7322924 DOI: 10.1177/1049732319870174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although factors associated with HIV/sexually transmitted infection (STI) testing among gay, bisexual, and queer (GBQ) men are well-established in the literature, few studies have attempted to delineate the processes underlying different patterns of testing. We conducted a qualitative study involving 35 semistructured interviews with a purposive sample of GBQ men in Singapore from October 2017 to July 2018. Topics explored included formative sexual experiences, relationships, and experiences of HIV/STI testing. Interviews were audio-recorded, transcribed, coded, and analyzed through inductive thematic analysis. A typology comprising four distinct HIV/STI testing patterns was identified from the data, categorized based on the regularity of testing, relative to internal or external factors that motivate testing behaviors. These include triggered episodic testing, influenced episodic testing, institutionalized regular testing, and value-based regular testing. The typology highlights the preconditions that underlie different testing patterns and provides a framework for developing interventions that promote HIV/STI testing among GBQ men.
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Affiliation(s)
- Rayner Kay Jin Tan
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
- National University Health System, Singapore
| | | | - Mark I-Cheng Chen
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
- National University Health System, Singapore
- National Centre for Infectious Diseases, Singapore
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Tan RKJ, Kaur N, Chen MIC, Wong CS. Individual, interpersonal, and situational factors influencing HIV and other STI risk perception among gay, bisexual, and other men who have sex with men: a qualitative study. AIDS Care 2020; 32:1538-1543. [PMID: 32107926 DOI: 10.1080/09540121.2020.1734176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Gay, bisexual, and other men who have sex with men (GBMSM) are disproportionately affected by HIV and other sexually transmitted infections (STI). While levels of self-perceived risk of HIV or other STI acquisition has been well-established as a factor that is positively associated with HIV or other STI testing, less effort has been made to identify the processes through which GBMSM assess their perceived risk of HIV or other STI acquisition. We conducted a qualitative study exploring the factors influencing self-perceived risk of HIV or other STI among GBMSM. Semi-structured interviews were conducted with 35 self-identified GBMSM in Singapore from October 2017 to June 2018, and the data were analyzed through inductive thematic analysis. Participants reported drawing on individual factors including their own sexual health knowledge and past experiences of risk, interpersonal factors including their sexual partners' attributes or characteristics and perceived trust and familiarity with their sexual partners, and situational factors including the venue and familiarity with such venues where sexual activity took place, in determining their self-perceived risk of HIV or other STI acquisition. The results of this study have implications for HIV and other STI risk education.
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Affiliation(s)
- Rayner Kay Jin Tan
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
| | - Nashwinder Kaur
- National Centre for Infectious Diseases, Singapore, Singapore
| | - Mark I-Cheng Chen
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.,National Centre for Infectious Diseases, Singapore, Singapore
| | - Chen Seong Wong
- National Centre for Infectious Diseases, Singapore, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Cheng W, Egan JE, Liu Q, Xu H, Stall R, Friedman MR. Psychosocial Correlates of HIV Testing Frequency Among Men Who Have Sex with Men in Guangzhou, China. AIDS Behav 2020; 24:363-372. [PMID: 30762189 DOI: 10.1007/s10461-019-02431-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We examined sociodemographic and psychosocial factors associated with HIV testing patterns in the past 2 years among 492 HIV-negative men who have sex men (MSM) at an HIV testing center in Guangzhou, China. MSM who tested for HIV frequently were more likely to be older, reside in Guangzhou, and have higher monthly income. Compared with MSM who tested frequently, MSM who never tested were less likely to report that their sexual partner(s) had ever received HIV tests or that their good friends had ever received HIV tests, and were less likely to report having an HIV-positive gay friend or ever discussing HIV with sexual partners; they were more likely to report perceiving barriers to HIV testing. Compared with MSM who tested frequently, those who tested irregularly were less likely to report having HIV-positive gay friends or to disclose their sexual orientation to non-gay friends; reported greater barriers to HIV testing; and higher internalized homophobia.
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Bjørnshagen V, Moseng BU, Ugreninov E. Who Do You Reach? A Norwegian Pilot Project on HIV Self-Testing that Targeted Men Who Have Sex with Men. AIDS Behav 2020; 24:568-579. [PMID: 30929148 DOI: 10.1007/s10461-019-02484-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
HIV self-testing reduces barriers associated with other HIV testing services, such as concerns about confidentiality and inconvenience. This article demonstrates who might benefit from this approach to HIV testing by describing the characteristics of men who have sex with men (MSM) who took interest in a Norwegian pilot project on HIV self-testing. Of the MSM users, 27% reported that they had never been tested for HIV. Not disclosing one's same-sex sexuality, particularly among non-gay-identified MSM, was associated with a higher probability of never having been tested for HIV and choosing to test with an HIV self-test because of its anonymity. Never having been tested for HIV was also associated with a higher probability of choosing to test with an HIV self-test due to anonymity. The results suggest that the HIV self-tests' ability to reach MSM who otherwise would not be tested is partly because it is an anonymous HIV testing alternative.
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Khawcharoenporn T, Mongkolkaewsub S, Naijitra C, Khonphiern W, Apisarnthanarak A, Phanuphak N. HIV risk, risk perception and uptake of HIV testing and counseling among youth men who have sex with men attending a gay sauna. AIDS Res Ther 2019; 16:13. [PMID: 31189481 PMCID: PMC6560849 DOI: 10.1186/s12981-019-0229-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/06/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Men who have sex with men (MSM) are amongst populations at-risk for HIV acquisition in Thailand. In youth MSM (aged 15-24 years), the incidence of HIV infection has substantially increased. However, data on HIV risk, risk perception and HIV testing and counseling (HTC) uptake among youth MSM in hotspots are limited. METHODS A subanalysis of a prospective study among Thai MSM attending a gay sauna was conducted. HIV risk and risk perception were assessed by an anonymous survey. The MSM were categorized as having actual "low-risk", "moderate-risk" and "high-risk" for HIV acquisition based on the validated study risk categorization tool. HTC was provided on-site with result notification within 1 h. HIV care establishment appointment was arranged by the counselors for HIV-infected participants. Care engagement within 1 year of diagnosis was subsequently assessed. RESULTS There were 358 MSM participants; 87 (24%) were youth MSM. Comparing to other MSM, youth MSM had significantly higher median number of lifetime sexual partners [2 (IQR 1-9) vs. 1 (IQR 0-1); P < 0.001), were more-likely to ever exchange sex for money (44% vs. 9%; P < 0.001) and have sexual partner who exchanged sex for money (8% vs. 1%; P < 0.001). Rates of consistent condom use in the past 3 months for anal, oral and vaginal sexes were low and not significantly different between youth and other MSM (51% vs. 61%, 26% vs. 35% and 72% vs. 61%, respectively). By using the study risk categorization tool, there were 68 youth MSM with moderate or high-risk for HIV acquisition, of which 43 (63%) had false perception of low HIV risk. Youth MSM were more likely than other MSM to accept HTC [68% vs. 33%, P < 0.001)] and to be first-time testers (42% vs. 28%, P = 0.07). By HTC, the rates of HIV infection tended to be higher among youth MSM comparing to other MSM [14/59 (24%) vs. 11/89 (12%); P = 0.07]. Among the 14 youth MSM newly-diagnosed with HIV infection, only 6 (43%) showed-up for continuity care after 1-year follow-up. CONCLUSIONS Youth MSM had substantial high HIV risk, false perception of low HIV risk and low rate of care engagement but demonstrated considerable rate of HTC uptake. Strategies to improve access to HTC, risk perception and linkage to care are needed for HIV prevention and management among the youth MSM.
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Affiliation(s)
- Thana Khawcharoenporn
- Division of Infectious Diseases, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
- Thammasat University Hospital, Pathumthani, Thailand
| | | | | | | | - Anucha Apisarnthanarak
- Division of Infectious Diseases, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
- Thammasat University Hospital, Pathumthani, Thailand
| | - Nittaya Phanuphak
- PREVENTION, The Thai Red Cross AIDS Research Centre, Bangkok, Thailand
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Johansson K, Persson KI, Deogan C, El-Khatib Z. Factors associated with condom use and HIV testing among young men who have sex with men: a cross-sectional survey in a random online sample in Sweden. Sex Transm Infect 2018; 94:427-433. [PMID: 29773663 DOI: 10.1136/sextrans-2017-053369] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 04/10/2018] [Accepted: 04/28/2018] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES The objectives are to analyse social determinants of sexual health behaviour (condom use and HIV testing) among young, internet-active, cis men who have sex with men (MSM) in a high-income country. The aspects of sexual health behaviour analysed here are condomless anal intercourse with one or more new or casual partner(s), condomless anal intercourse during the most recent sex with a man and HIV testing. METHODS A randomised sample of men active on Sweden's main online community for Lesbian, Gay, Bisexual and Trans people responded to an online survey (response rate 19%). A subsample of young people, aged 15-29, was analysed (effective sample 597-669) using multivariable logistic regression with respect to factors associated with condomless anal intercourse with one or more new or casual partner(s), condomless anal intercourse at most recent sex and not having had a test for HIV. RESULTS Low education, being single and living in a metropolitan area were found to be independently associated with condomless anal intercourse with new or casual partner(s). Sex with a steady partner was associated with condomless anal intercourse during the most recent sex. Knowledge of where to get tested, high education, being born outside Sweden and condomless anal intercourse with new or casual sex partner(s) were independently associated with having been tested for HIV. CONCLUSIONS The factors associated with sexual health behaviour among young MSM are complex, and preventive messages need to be tailored accordingly.
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Affiliation(s)
- Klara Johansson
- Unit of Epidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | | | - Charlotte Deogan
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Ziad El-Khatib
- Unit of Epidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.,Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.,World Health Program, Université du Québec en Abitibi-Témiscamingue (UQAT), Québec, Ottawa, Canada
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13
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Abstract
Men who have sex with men (MSM) continue to be at higher risk for negative health outcomes including HIV, STIs, depression, substance use, suicidality, and anxiety. Associative relationships between homonegativity (internal and external) and these outcomes are used to explain the observed disproportionate impact. The current study assessed associations between internalized homonegativity and high-risk behaviours, markers of substance use and symptoms of mental illness as well as openness and level of same sex attraction. A 2013 Internet-based survey was conducted among MSM, collecting data on socio-demographics, sexuality, drug and alcohol use, mental health, suicidality, and internalized homonegativity. The sample (n = 265) had a median age of 31 years, with 85 % employed at least part-time; at least a college-level education in 43 %; and 87 % lived in an urban setting. Sexual orientation was reported as: gay, 72 %; bisexual 23 %; other 5 %. Almost all men (97 %) reported ever having sex with a man, with more than one-third (36 %) having a steady male partner. Statistically significant higher homonegativity scores were detected among men reporting any level of opposite sex attraction compared to men attracted to only men; mostly men (p = 0.001), men and women equally (p = 0.002), and mostly women (p = 0.004), as well as less openness of same sex attraction to family and friends; >50 % family (p = 0.032), no family knowing (p = 0.042), and few friends knowing (p = 0.011). Anxiety risk and increased homonegativity also had a statistically significant increasing relationship. The identified associations between homonegativity and opposite sex attraction among MSM warrants further exploration as well as the relationship with increased anxiety risk.
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14
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Nelson KM, Pantalone DW, Gamarel KE, Carey MP, Simoni JM. Correlates of Never Testing for HIV Among Sexually Active Internet-Recruited Gay, Bisexual, and Other Men Who Have Sex with Men in the United States. AIDS Patient Care STDS 2018; 32:9-15. [PMID: 29232170 PMCID: PMC5756935 DOI: 10.1089/apc.2017.0244] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In the United States, gay, bisexual, and other men who have sex with men (GBMSM) are disproportionately affected by the HIV/AIDS epidemic. Despite great strides in HIV prevention, including biobehavioral HIV prevention strategies such as pre-exposure prophylaxis and treatment as prevention, there has been relatively low uptake of these strategies. The success of biobehavioral prevention strategies requires HIV testing but a subset of GBMSM have never been tested. To optimize prevention efforts, we sought to understand the characteristics of GBMSM who report never testing for HIV. A sample of GBMSM was recruited online in 2012 to complete a cross-sectional survey of sexual behavior and sexual health. Bivariate and multivariable analyses were used to identify characteristics of "never testing for HIV." Of the 1170 participants, 151 (13%) reported never testing for HIV. In multivariable analyses, younger age, less education, endorsing a non-gay sexual identity, living in rural areas, not having a primary partner, living in unstable housing, and reporting regular condom use during anal sex were independently associated with never testing. We conclude that, despite a substantial focus on HIV testing among GBMSM in the United States, a proportion of sexually active, adult GBMSM report never having tested for HIV in their lifetimes. The current study illustrates the importance of addressing individual and structural factors that serve as barriers to HIV testing among GBMSM. Addressing these barriers will improve access to HIV testing and other biobehavioral HIV prevention strategies and, ultimately, alleviate disparities in HIV/AIDS in the United States.
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Affiliation(s)
- Kimberly M Nelson
- 1 Centers for Behavioral and Preventative Medicine , The Miriam Hospital, Providence, Rhode Island
- 2 Department of Psychiatry and Human Behavior, Brown University , Providence, Rhode Island
- 3 Department of Behavioral and Social Sciences, Brown University , Providence, Rhode Island
| | - David W Pantalone
- 4 Department of Psychology, University of Massachusetts , Boston, Massachusetts
- 5 The Fenway Institute , Fenway Health, Boston, Massachusetts
- 6 Center for Alcohol and Addiction Studies, Brown University , Providence, Rhode Island
| | - Kristi E Gamarel
- 3 Department of Behavioral and Social Sciences, Brown University , Providence, Rhode Island
- 7 Department of Health Behavior and Health Education, University of Michigan School of Public Health , Ann Arbor, Michigan
| | - Michael P Carey
- 1 Centers for Behavioral and Preventative Medicine , The Miriam Hospital, Providence, Rhode Island
- 2 Department of Psychiatry and Human Behavior, Brown University , Providence, Rhode Island
- 3 Department of Behavioral and Social Sciences, Brown University , Providence, Rhode Island
| | - Jane M Simoni
- 8 Department of Psychology, University of Washington , Seattle, Washington
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15
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Rüütel K, Parker RD, Lõhmus L, Valk A, Aavik T. HIV and STI Testing and Related Factors Among Men Who Have Sex with Men in Estonia. AIDS Behav 2016; 20:2275-2285. [PMID: 26852032 DOI: 10.1007/s10461-016-1313-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
HIV and sexually transmitted infections (STI) testing rates among men who have sex with men (MSM) in Estonia are low. We collected data from 265 MSM in a national, online survey. Lifetime HIV testing was related to risky sexual behaviors and contacts with health care services, while lifetime STI testing was related only to contacts with health care services. In addition, some personal values were significant predictors of testing. For example, high achievement (personal success through demonstrating competence according to social standards) had a negative impact on lifetime HIV testing, and high interpersonal conformity (avoiding upsetting others) had a negative impact on lifetime STI testing. The results demonstrate the need to develop gay-friendly health services and to recognize the role of personal values and individual differences in values when designing attractive interventions to increase HIV/STI testing rates among MSM.
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Affiliation(s)
- Kristi Rüütel
- Infectious Diseases and Drug Monitoring Department, National Institute for Health Development, 42 Hiiu St, 11619, Tallinn, Estonia.
| | - R David Parker
- School of Public Health, West Virginia University, Morgantown, WV, USA
| | - Liilia Lõhmus
- Infectious Diseases and Drug Monitoring Department, National Institute for Health Development, 42 Hiiu St, 11619, Tallinn, Estonia
| | - Anti Valk
- Infectious Diseases and Drug Monitoring Department, National Institute for Health Development, 42 Hiiu St, 11619, Tallinn, Estonia
| | - Toivo Aavik
- Institute of Psychology, University of Tartu, Tartu, Estonia
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16
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Witzel TC, Melendez-Torres GJ, Hickson F, Weatherburn P. HIV testing history and preferences for future tests among gay men, bisexual men and other MSM in England: results from a cross-sectional study. BMJ Open 2016; 6:e011372. [PMID: 27630068 PMCID: PMC5030541 DOI: 10.1136/bmjopen-2016-011372] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVES The British HIV Association's (BHIVA) testing guidelines recommend men who have sex with men (MSM) test annually or more frequently if ongoing risk is present. We identify which groups of MSM in England are less likely to have tested for HIV and their preferences for future tests by testing model, in order to inform health promotion programmes. METHODS Data come from the Gay Men's Sex Survey 2014, a cross-sectional survey of MSM, aged 16 years or older and living in the UK. Only men who did not have diagnosed HIV and were living in England were included in this analysis. We used logistic regression models to understand how social determinants of health were associated with not testing for HIV in the past 12 months, and never having tested. We then cross-tabulated preferred testing location by demographic characteristics. RESULTS Younger men, older men and men who were not gay identified were least likely to have tested for HIV. Higher educational attainment, migrancy, Black ethnicity and being at higher of risk were associated with greater levels of HIV testing. Men who were less likely to have tested for HIV preferred a wider range of options for future HIV testing. CONCLUSIONS If the BHIVA's HIV testing policy of 2008 was used to guide testing priorities among MSM focus would be on increasing the rate of annual testing among MSM at less risk of HIV (ie, younger men, older men and non-gay identified MSM). Instead the promotion of more frequent testing among the groups most at risk of infection should be prioritised in order to reduce the time between infection and diagnosis.
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Affiliation(s)
- T Charles Witzel
- Sigma Research, Department of Public Health and Policy, London School of Hygiene and Tropical Medicine London, London, UK
| | - G J Melendez-Torres
- Warwick Evidence, Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry, UK
| | - Ford Hickson
- Sigma Research, Department of Public Health and Policy, London School of Hygiene and Tropical Medicine London, London, UK
| | - Peter Weatherburn
- Sigma Research, Department of Public Health and Policy, London School of Hygiene and Tropical Medicine London, London, UK
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17
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Bruhn R, Moreno E, Sabino EC, Ferreira NAF, Carneiro-Proietti ABF, Lopes MED, Sampaio D, Loureiro P, Custer B, Goncalez TT. Self-reported historic human immunodeficiency virus (HIV) testing in a Brazilian blood donor HIV case-control study. Transfusion 2016; 56:2857-2867. [PMID: 27716930 DOI: 10.1111/trf.13792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 06/06/2016] [Accepted: 06/28/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND There has been increased worldwide emphasis on the many benefits of human immunodeficiency virus (HIV) serostatus awareness for both infection prevention and improved treatment outcomes. Previous studies indicate that donors may use blood donation to be tested; the objectives of this analysis were to assess, among donors with previously undisclosed risk behavior in the 12 months before donation, the frequency of those who have previously been tested for HIV and the demographic and behavioral factors associated with such testing. STUDY DESIGN AND METHODS In this secondary analysis from an HIV case-control study of blood donors in Brazil, we analyzed the response to the question, "Other than blood donation, have you ever been tested for HIV?" Demographic and disclosed risk behaviors associated with previous testing were determined. RESULTS The study included 341 HIV-positive cases and 791 HIV-negative controls (1:2 case/control ratio). Overall, 31% of blood donors (40% of cases and 26% of controls) reported having been tested for HIV outside of blood donation. History of HIV testing varied according to sex, HIV status, and reported sexual risk behavior. CONCLUSION Although it is encouraging that previous testing was more frequent in donors with acknowledged sexual risk behavior in Brazil, 60% still had not been tested for HIV outside of the blood donation setting. Educating donors on the importance of not using blood centers as a means to get tested for HIV in Brazil, especially if they engage in higher risk behaviors, and seeking alternate testing venues instead could improve the safety of donated blood.
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Affiliation(s)
- Roberta Bruhn
- Blood Systems Research Institute, Epidemiology, San Francisco, California
| | - Elizabeth Moreno
- Fundação Hemominas/Hemocentro de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ester C Sabino
- Institute of Tropical Medicine, Universidade de São Paulo, São Paulo, Brazil.,Department of Infectious Disease, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Divaldo Sampaio
- Fundação Hemope/Hemocentro de Pernambuco, Recife, Pernambuco, Brazil
| | - Paula Loureiro
- Fundação Hemope/Hemocentro de Pernambuco, Recife, Pernambuco, Brazil.,University of Pernambuco, FCM, Fundação Hemope, Recife, Pernambuco, Brazil
| | - Brian Custer
- Blood Systems Research Institute, Epidemiology, San Francisco, California
| | - Thelma T Goncalez
- Blood Systems Research Institute, Epidemiology, San Francisco, California
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18
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Persson KI, Berglund T, Bergström J, Eriksson LE, Tikkanen R, Thorson A, Forsberg BC. Motivators and barriers for HIV testing among men who have sex with men in Sweden. J Clin Nurs 2016; 25:3605-3618. [PMID: 27135281 DOI: 10.1111/jocn.13293] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2016] [Indexed: 11/27/2022]
Abstract
AIMS AND OBJECTIVES To explore motivators and barriers to HIV testing and to assess the factors associated with testing among men who have sex with men. BACKGROUND Previous research has considered fear, worries and structural barriers as hindrances to HIV testing among men who have sex with men. However, few studies have included assessments of actual HIV testing when exploring barriers or motivators for such testing. DESIGN The design of the study was a stratified cross-sectional online survey (n = 2373). METHOD Factor analysis was conducted to analyse the barriers and motivators for HIV testing. Logistic regression analysis was conducted to assess predictors for HIV testing. RESULTS Many men who have sex with men test for HIV regularly, and specific reasons for testing were having unprotected sex or starting/ending a relationship. A lack of awareness and a perception of being at low risk for exposure were common reasons for never being tested. Fear and anxiety as well as barriers related to the use of test services remain important hindrances for testing. Predictors associated with having been tested within the past 12 months were: younger age (15-25 years old compared with 47+); knowledge on where to take an HIV test on short notice as well as having talked with a counsellor, having received condoms for free, or having had unprotected anal intercourse with casual partners within the last 12 months. CONCLUSION Easily accessible test services offering testing and counselling on short notice should be available for all men who have sex with men. Outreach activities, distribution of free condoms and testing at venues where men who have sex with men meet are important prevention add-ons that can contribute to increased awareness about HIV and testing. RELEVANCE TO CLINICAL PRACTICE Test services must ensure confidentiality and health care professionals who meet men who have sex with men for testing need competency with regards to men who have sex with men sexual health needs.
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Affiliation(s)
- Kristina Ingemarsdotter Persson
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.,Department of Knowledge Development, Unit for Health and Sexuality, Public Health Agency of Sweden, Solna, Sweden
| | - Torsten Berglund
- Department of Monitoring and Evaluation, Unit for Epidemiology and Health Economics, Public Health Agency of Sweden, Solna, Sweden
| | - Jakob Bergström
- Department of Monitoring and Evaluation, Unit for Statistics and Surveillance, Public Health Agency of Sweden, Solna, Sweden
| | - Lars E Eriksson
- Department of Learning, Informatics, Management and Ethics, Unit for Medical Management Centre/Innovative Care, Karolinska Institutet, Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden.,Nursing Division, School of Health Sciences, City University London, London, UK
| | - Ronny Tikkanen
- Department Social Work, University of Gothenburg, Göteborg, Sweden
| | - Anna Thorson
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Birger C Forsberg
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
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19
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Lorimer K, Flowers P, Davis M, Frankis J. Young men who have sex with men's use of social and sexual media and sex-risk associations: cross-sectional, online survey across four countries. Sex Transm Infect 2016; 92:371-6. [PMID: 26792089 DOI: 10.1136/sextrans-2015-052209] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 12/23/2015] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE There has been an increase in new HIV diagnoses among young men who have sex with men (YMSM) over the past decade in both UK and US contexts, with online sex-seeking implicated in driving this development. This study sought to examine YMSM's use of a variety of social and sexual networking websites and 'apps', and assess sexual risk behaviours. DESIGN YMSM were recruited from across four countries in Britain and Ireland, via an online survey using convenience sampling. Data were collected from 2668 men, of whom 702 were aged 18-25 years. RESULTS Facebook use was almost ubiquitous and for largely social reasons; sexual media use was common with 52% using gay sexual networking (GSN) websites frequently and 44% using similar apps frequently. We found increased odds of high-risk condomless anal intercourse associated with the length of time users had been using GSN websites and lower levels of education. We found no significant differences across the four countries in sexual risk behaviours. CONCLUSIONS YMSM are a heterogeneous population with varied sexual health needs. For young men with digital literacy, individual-level online interventions, targeted and tailored, could be directed towards frequent users with lower levels of education. Variation in demographic characteristics of GSN websites and app users may affect who interventions are likely to reach, depending on where they are targeted. However, interventions, which may catch young men earlier, also provide a major opportunity for reducing sexual health inequalities.
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Affiliation(s)
- Karen Lorimer
- School of Health & Life Sciences, Glasgow Caledonian University, Glasgow, UK
| | - Paul Flowers
- School of Health & Life Sciences, Glasgow Caledonian University, Glasgow, UK
| | - Mark Davis
- School of Social Sciences, Monash University, Melbourne, Victoria, Australia
| | - Jamie Frankis
- School of Health & Life Sciences, Glasgow Caledonian University, Glasgow, UK
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20
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Diaz A, del Romero J, Rodriguez C, Alastrue I, Belda J, Bru FJ, Cámara MM, Junquera ML, Sanz I, Viloria LJ, Gil L, Martínez E, Gual F, Landa MC, Pueyo I, Ureña JM, Martínez B, Varela JA, Polo A, Azpiri MA, Diez M. Effects of region of birth, educational level and age on late presentation among men who have sex with men newly diagnosed with HIV in a network of STI/HIV counselling and testing clinics in Spain. ACTA ACUST UNITED AC 2015; 20. [PMID: 25884148 DOI: 10.2807/1560-7917.es2015.20.14.21088] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This paper analyses late presentation (LP) of HIV infection, and its determinants, among men who have sex with men (MSM) in Spain, newly diagnosed with HIV (2003-2011) in 15 sexually transmitted infection/HIV counselling and testing clinics. LP was defined as <350 CD4 cells/µL or AIDS. In total, 3,081 MSM were included (2,499 having CD4/AIDS); overall LP was 25.3%. LP was higher in men older than 34 years, those not previously HIV-tested (adjusted odds ratio (aOR):3.1; 95% confidence intervals (CI):2.3-4.2) , and those tested > 12 months before diagnosis (12-24 months (aOR:1.4; 95% CI:1.0-2.0); > 24 months (aOR:2.2; 95% CI:1.7-3.0)). LP was less likely in MSM reporting a known HIV-infected partner as infection source or symptoms compatible with acute retroviral syndrome. 'Region of birth' interacted with 'educational level' and 'steady partner as infection source': only African and Latin-American MSM with low educational level were more likely to present late; Latin-American men attributing their infection to steady partner, but no other MSM, had LP more frequently. In Spain, HIV testing among MSM should be promoted, especially those > 34 years old and migrants with low educational level. The current recommendation that MSM be tested at least once a year is appropriate.
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Affiliation(s)
- A Diaz
- area de Vigilancia del VIH y comportamientos de riesgo, Centro Nacional de Epidemiologia, Instituto de Salud Carlos III, Madrid, Spain
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