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1.
HIV Med ; 25(8): 976-989, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38803112

RESUMO

OBJECTIVES: To identify sexual/sex-associated risk factors for hepatitis C transmission among men who have sex with men (MSM) and visualise behavioural trajectories from 2019 to 2021. METHODS: We linked a behavioural survey to a hepatitis C cohort study (NoCo), established in 2019 across six German HIV/hepatitis C virus (HCV) treatment centres, and performed a case-control analysis. Cases were MSM with recent HCV infection, and controls were matched for HIV status (model 1) or proportions of sexual partners with HIV (model 2). We conducted conditional univariable and multivariable regression analyses. RESULTS: In all, 197 cases and 314 controls completed the baseline questionnaire and could be matched with clinical data. For regression models, we restricted cases to those with HCV diagnosed since 2018 (N = 100). Factors independently associated with case status included sex-associated rectal bleeding, shared fisting lubricant, anal douching, chemsex, intravenous and intracavernosal injections, with population-attributable fractions of 88% (model 1) and 85% (model 2). These factors remained stable over time among cases, while sexual partner numbers and group sex decreased during COVID-19 measures. CONCLUSIONS: Sexual/sex-associated practices leading to blood exposure are key factors in HCV transmission in MSM. Public health interventions should emphasize the importance of blood safety in sexual encounters. Micro-elimination efforts were temporarily aided by reduced opportunities for sexual encounters during the COVID-19 pandemic.


Assuntos
Hepatite C , Homossexualidade Masculina , Humanos , Masculino , Fatores de Risco , Homossexualidade Masculina/estatística & dados numéricos , Adulto , Estudos de Casos e Controles , Hepatite C/transmissão , Hepatite C/epidemiologia , Pessoa de Meia-Idade , Comportamento Sexual/estatística & dados numéricos , Alemanha/epidemiologia , COVID-19/transmissão , COVID-19/epidemiologia , Infecções por HIV/transmissão , Parceiros Sexuais , SARS-CoV-2 , Inquéritos e Questionários , Estudos de Coortes
2.
Sex Transm Infect ; 100(5): 321-324, 2024 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-38960601

RESUMO

OBJECTIVES: To eliminate hepatitis B and C virus (HBV/HCV) as a public health threat by 2030, the WHO focuses on screening key populations, including men who have sex with men (MSM).This study aims to assess HBV and HCV knowledge and awareness and HCV prevalence in MSM in Belgium. METHODS: First, a questionnaire was designed to assess MSM's knowledge of HBV and HCV infection (disease process, vaccination, treatment and transmission routes). This questionnaire was conducted online, and by means of a tablet-based face-to-face questionnaire at the Antwerp and Belgian Pride. Second, HCV and HIV prevalence data were collected during outreach projects and office screening for sexually transmitted infections (STIs) organised by Sensoa and Exaequo, a Flemish and Walloon sexual health organisation. RESULTS: 300 MSM completed the questionnaire (median age 36 years; 7.7% HIV+). Mean overall survey scores were low (HBV: 41.1%; HCV: 39.8%). Few participants identified all transmission routes correctly (HBV: 15%; HCV 1%).The degree of education was significantly correlated with HBV knowledge and showed a trend towards correlation with HCV knowledge. HCV knowledge was significantly correlated with high-risk sexual behaviour.The prevalence of HCV and HIV was 0.3% and 1.0%, respectively, in MSM attending commercial gay venues and 0% and 1.9% in MSM attending office STI screening. CONCLUSIONS: Knowledge of HBV and HCV infection in MSM is poor. More awareness campaigns are needed, focusing on frequent HCV risk factors (group sex, chemsex, receptive fisting, and sharing of anal toys and anal douching devices), especially targeting low-educated MSM. HBV vaccination of MSM requires continued attention.The prevalence of HCV and HIV was remarkably low in commercial gay venues and may be higher in older MSM or in subcultures where risk factors coexist (eg, chemsex). The cost-effectiveness of internet-based approaches with subsequent at-home testing needs to be evaluated in the future.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina , Programas de Rastreamento , Humanos , Masculino , Bélgica/epidemiologia , Homossexualidade Masculina/estatística & dados numéricos , Adulto , Inquéritos e Questionários , Prevalência , Hepatite B Crônica/epidemiologia , Hepatite B Crônica/prevenção & controle , Hepatite B Crônica/diagnóstico , Hepatite C Crônica/epidemiologia , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/prevenção & controle , Pessoa de Meia-Idade , Adulto Jovem , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Infecções por HIV/diagnóstico , Minorias Sexuais e de Gênero/estatística & dados numéricos , Comportamento Sexual
3.
Trop Med Int Health ; 2024 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-39003628

RESUMO

BACKGROUND: There are no trend studies on various health risk behaviours among adolescents in Uruguay. Therefore, this study looked at trends in a number of health-risky behaviours among adolescents in Uruguay from three separate surveys. METHODS: Data from 9272 adolescents (age range: 11-16 years), who took part in three cross-sectional national in-school surveys in Uruguay in 2006, 2012 and 2019 were analysed. A self-administered survey was used to evaluate 24 health risk behaviours. By using logistic regression analyses to treat the study year as a categorical variable and adjusting food insecurity and age, linear trends were examined. RESULTS: We found a significant increase in the prevalence of being overweight, having obesity, inadequate fruit intake, sedentary behaviour in leisure-time, physical inactivity, bullying victimisation, loneliness, suicidal ideation, and sexual activity. We found a significant decrease in current cigarette use, physical fighting and current alcohol use. Among males, a significant increase of non-condom use, and a decrease in current other tobacco use (other than cigarettes), being physically attacked and the number of sexual partners. Among females, we found an increase in food insecurity, trouble from alcohol use, multiple sexual partners, and sleep problems. CONCLUSION: Overall, from 2006 to 2019, there was a decrease in seven health risk behaviours among boys and/or girls. Among boys, there was an increase in 10 health risk behaviours and among girls, 15 health risk behaviours increased, highlighting adolescent girls' greater vulnerability, thereby perpetuating further gendered health inequalities. In Uruguay, school health programmes for adolescents are recommended.

4.
Psychooncology ; 33(8): e9303, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39138118

RESUMO

OBJECTIVE: Despite available support, sexuality needs are the most frequently reported unmet need among men with prostate cancer, which may be due to low help-seeking rates. Using the Ecological Systems Framework as a theoretical foundation, we conducted a scoping review of the available literature to understand what factors impact help-seeking behaviour for sexual issues after prostate cancer treatment among men who had received treatment. METHODS: Following PRISMA guidelines, a systematic search on Medline, PsychInfo, Embase, Emcare, and Scopus was conducted to identify studies of adult prostate cancer patients post-treatment, which reported barriers and/or facilitators to help-seeking for sexual health issues. Quality appraisals were conducted using Joanna Briggs Institute appraisal tools, and results were qualitatively synthesised. RESULTS: Of the 3870 unique results, only 30 studies met inclusion criteria. In general, studies were considered moderate to good quality, though only six used standardised measures to assess help-seeking behaviour. Barriers and facilitators for sexual help-seeking were identified across all five levels of the Ecological Systems Framework, including age, treatment type, and previous help seeking experience (individual level), healthcare professional communication and partner support (microsystem), financial cost and accessibility of support (meso/exosystem), and finally embarrassment, masculinity, cultural norms, and sexuality minority (macrosystem). CONCLUSIONS: Addressing commonly reported barriers (and inversely, enhancing facilitators) to help-seeking for sexual issues is essential to ensure patients are appropriately supported. Based on our results, we recommend healthcare professionals include sexual wellbeing discussions as standard care for all prostate cancer patients, regardless of treatment received, age, sexual orientation, and partnership status/involvement.


Assuntos
Comportamento de Busca de Ajuda , Aceitação pelo Paciente de Cuidados de Saúde , Neoplasias da Próstata , Disfunções Sexuais Fisiológicas , Humanos , Masculino , Neoplasias da Próstata/psicologia , Neoplasias da Próstata/terapia , Disfunções Sexuais Fisiológicas/psicologia , Disfunções Sexuais Fisiológicas/terapia , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Acessibilidade aos Serviços de Saúde , Disfunções Sexuais Psicogênicas/psicologia , Disfunções Sexuais Psicogênicas/terapia
5.
AIDS Behav ; 28(4): 1327-1344, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37775644

RESUMO

Pre-exposure prophylaxis (PrEP) use has been shown to be effective for HIV prevention in men who have sex with men (MSM). PrEP use coverage aside, maintenance of high PrEP adherence is crucial in ensuring the achievement of HIV prevention. In this PrEP implementation study in Hong Kong, we examined the patterns of PrEP use in MSM and evaluated their association with prevention-effective adherence for HIV prevention. In January 2020-June 2021 in Hong Kong, 312 recruited MSM (median 30 years old) were followed up for 1 year, with HIV and creatinine testing, consultation, and PrEP refill. No HIV breakthrough infection was observed. As a measure of prevention-effective adherence, executed adherence (EA) was expressed as the proportion of days with HIV risk that were protected by PrEP and/or condom in 6 months. In 65,585 diary entries of 215 MSM, the median proportion of EA achieved was 89% (IQR 84-93%). Three latent classes of PrEP users were identified by latent class analysis. Taking Class 1 "daily dominant PrEP" (n = 113, 53%) as reference, Class 2 "episodic PrEP" (n = 76, 35%) was adopted by MSM with less sexual activity, had less PrEP refill and lower EA level, while Class 3 "mixed PrEP schedule" (n = 26, 12%) MSM were more sexually active but with a similar EA level. The study findings showed varied and dynamic PrEP usage patterns in the real-world setting. Strategies for promoting adherence are needed to ensure the maintenance of high EA level among PrEP-using MSM especially those on episodic PrEP schedule.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Masculino , Humanos , Adulto , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Infecções por HIV/tratamento farmacológico , Homossexualidade Masculina , Hong Kong/epidemiologia , Fármacos Anti-HIV/uso terapêutico
6.
AIDS Care ; 36(1): 87-97, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37187024

RESUMO

Studies continue to underscore the profound impact of sexual violence on women's health. Yet, little is known about the impact, via a complex matrix of behavioural and social factors, of first intercourse, namely forced non-consensual on HIV status, particularly among sexually active women (SAW) in low-income countries where HIV prevalence remains high. Using a national sample from Eswatini, we employed multivariate logistic regression modelling to estimate the associations between forced first-sex (FFS), subsequent sexual behaviour and HIV status among 3555 SAW aged from 15 years to 49 years. The results found that women who experienced FFS had a greater number of sexual partners compared to those who had never experienced FFS (aOR = 2.79, p < .01), although there were no significant differences in condom use, early sexual debut and casual sex involvement between these two groups. FFS remained significantly associated with a higher risk of having HIV (aOR = 1.70, p < .05) even after controlling for risky sexual behaviours and various other factors. These findings further reinforce the relationship between FFS and HIV, and suggest that addressing sexual violence is a critical component of HIV prevention among women in low-income countries.


Assuntos
Infecções por HIV , Feminino , Humanos , Essuatíni/epidemiologia , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Comportamento Sexual , Parceiros Sexuais , Coito , Preservativos
7.
BMC Public Health ; 24(1): 1485, 2024 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-38831431

RESUMO

BACKGROUND: The prevalence of, and risk factors for, genital Human Papillomavirus (HPV) infections within the young adult population are well-established; the same is not known for oral HPV. This observational study aimed to determine oral HPV prevalence and abundance within a UK young adult population, and examine if sexual practices and established risk factors of oropharyngeal squamous cell carcinomas (OPSCCs) (such as smoking and alcohol consumption) influenced HPV prevalence. METHODS: Convenience sampling was used to recruit a small sample of 452 UK-based young adults studying at a higher education (HE) institution to the study; the study was not powered. A highly sensitive real-time PCR HPV screening method was developed for the detection of multiple HPV subtypes from oral swabs. HPV-positive samples were subsequently screened by qPCR for viral subtypes HPV-6, HPV-11, HPV-16, HPV-18. Results were analysed by univariate and multivariate methods and stratified for gender, with lifestyle behaviour data collected via questionnaire. Socio-economic status was not captured within the questionnaire. RESULTS: We found a high oral HPV prevalence of 22.79%, with a dominance of high-risk viral type HPV-16 (prevalence 19.12%; abundance average 1.08 × 105 copies/million cells) detected within healthy young adults. Frequent smoking (p = .05), masturbation (p = .029), and engagement in multiple sexual activities (p = .057), were found to be associated with oral HPV prevalence, and HPV-16 prevalence, whilst behaviours traditionally associated with genital HPV were not. CONCLUSIONS: Our results strengthen the link between sexual practices and oral HPV transmission. We suggest that young adults should be considered high-risk for the contraction of oral HPV, although acknowledge that this sample of HE students may not be representative of the wider population. We show that high-risk HPV-16 is prevalent in the healthy population, as well as dominating within OPSCC; this study is one of the first to determine the dominance of oral HPV-16 prevalence and abundance within this population, presenting a clear need for greater awareness of oral HPV infections, and the risk factors for HPV-positive OPSCC within young adults.


Assuntos
Infecções por Papillomavirus , Comportamento Sexual , Humanos , Infecções por Papillomavirus/epidemiologia , Masculino , Feminino , Fatores de Risco , Prevalência , Adulto Jovem , Reino Unido/epidemiologia , Comportamento Sexual/estatística & dados numéricos , Adulto , Adolescente , Neoplasias Orofaríngeas/epidemiologia , Neoplasias Orofaríngeas/virologia , Papillomaviridae/isolamento & purificação , Papillomaviridae/genética , Reação em Cadeia da Polimerase em Tempo Real , Papillomavirus Humano
8.
Reprod Health ; 21(1): 69, 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38783342

RESUMO

INTRODUCTION: People with disabilities (PwDs) constitute a large and diverse group within the global population, however, their sexual and reproductive health (SRH) needs are often neglected, particularly in low-and middle-income countries. This may result in adverse outcomes, such as sexually transmitted infections (STIs), unintended pregnancies, and experience of interpersonal violence (IV). This study aimed to assess the factors that influence the sexual lives of PwDs in two districts of Ghana. METHODS: A sequential explanatory mixed-methods study design was used to collect data from PwDs. Quantitative data were obtained from 402 respondents using a pretested questionnaire, and qualitative data gathered from 37 participants using in-depth interviews. The quantitative data were analysed using descriptive and inferential statistics, while the qualitative data were analysed using inductive thematic analysis. RESULTS: Most PwDs (91%) reported that they have ever had sex, which was associated with age, disability severity, and household size. The prevalence of poor SRH status, STIs, unintended pregnancy, pregnancy termination, and unsafe abortion were 10.5%, 5.7%, 6.4%, 21.6%, and 36.9% respectively. These outcomes were influenced by education, income, health insurance subscription, and proximity to a health facility. The prevalence of IV was 65%, which was related to disability type and severity. The qualitative data revealed five main themes: curiosity to engage in sexual activities, feelings of despair and insecurity with abled partners, preference for sexual relationships with other PwDs, IV and its perpetrators, and adverse SRH outcomes. CONCLUSION: The study findings indicate that most adult PwDs have ever had sex and they face various challenges in their sexual lives. They experience multiple forms of abuse and neglect from different perpetrators at different levels of society, which have negative impacts on their well-being. There is a need for comprehensive and inclusive interventions that address the SRH needs of PwDs, as well as the underlying social and structural factors that contribute to their vulnerability. Further research is recommended to explore the perspectives of stakeholders on how to improve the SRH outcomes of PwDs.


People with disabilities make up 16 percent of the world population, but their sexual and reproductive health (SRH) needs are often unmet, especially in poorer countries, contributing to adverse outcomes. This study assessed factors influencing the sex lives of PwDs in two districts of Ghana. Quantitative data were collected from 402 respondents, while qualitative data were collected from 37 participants. The results showed that age, severity of disability, and household size influence sexual activity. Many respondents also reported adverse SRH issues including STIs and unintended pregnancies. Sixty-five percent reported experiencing violence or abuse, which is related to their disability type and severity. The study also found that PwDs encounter many challenges in their sexual lives, including abuse and neglect. The findings suggest the need to pay attention to the sexual health needs and the social issues that make PwDs vulnerable to various abuses.


Assuntos
Pessoas com Deficiência , Saúde Reprodutiva , Comportamento Sexual , Saúde Sexual , Humanos , Feminino , Gana/epidemiologia , Adulto , Pessoas com Deficiência/psicologia , Masculino , Comportamento Sexual/psicologia , Adulto Jovem , Pessoa de Meia-Idade , Gravidez , Adolescente , Infecções Sexualmente Transmissíveis/epidemiologia , Gravidez não Planejada/psicologia
9.
Euro Surveill ; 29(10)2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38456219

RESUMO

Gonorrhoea cases increased steeply in women aged 20 to 24 years across 15 EU/EEA countries in July to December 2022 and January to June 2023 with, respectively, 73% and 89% more cases reported than expected, based on historical data from 2015 to 2019. Smaller increases among men due to heterosexual transmission were observed in nine EU/EEA countries. Interventions to raise awareness among young people about sexually transmitted infection risks are needed, emphasising the benefit of safe sexual practices and testing.


Assuntos
Gonorreia , Infecções Sexualmente Transmissíveis , Masculino , Humanos , Feminino , Adolescente , Gonorreia/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Comportamento Sexual , Heterossexualidade
10.
Eur J Contracept Reprod Health Care ; 29(1): 15-23, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38108084

RESUMO

OBJECTIVE: The aim of our study was to assess the covariates of contraceptive switching and abandonment among Brazilian women stratified by oral pills, condoms and injectables. MATERIALS AND METHODS: Women attending primary health care services in three Brazilian mid- to large-sized cities were interviewed face-to-face about their contraceptive practices (n = 2,051). Data were collected using a contraceptive calendar. Analysis included estimates using Kaplan-Meier multiple-decrement life-table probabilities and discrete-time hazards modelling of switching from a method to another or to no method. RESULTS: Among 3,280 segments of contraceptive use, we observed that five-year contraceptive switching rates ranged from 34.9% among injectable users to 56.1% among pill users. Of particular concern were the high discontinuation rates of abandonment, which ranged from 50.9% among injectable users to 77.4% among pill users. Covariates of method switching and abandonment varied by type of method, but age, race/ethnicity, religion and relationship status must be highlighted as key elements of discontinuation. CONCLUSION: Contraceptive method switching and abandoning are frequent outcomes of contraceptive use. Understanding the factors that shape women's decisions to continue or discontinue the use of a contraceptive method can help tailoring comprehensive contraceptive counselling that meet their expectations and reproductive needs when starting using a method.


Contraceptive discontinuation among women in need of contraception may difficult the achievement of their fertility desires, which can lead to unintended pregnancies.


Assuntos
Preservativos , Anticoncepcionais , Feminino , Humanos , Brasil , Anticoncepção/métodos , Comportamento Contraceptivo
11.
Neuropsychopharmacol Hung ; 26(2): 65-75, 2024 06.
Artigo em Húngaro | MEDLINE | ID: mdl-38994855

RESUMO

INTRODUCTION: Compulsive sexual behaviour or hypersexuality has been the subject of growing interest among academic circles. However, relatively few reliable predictors have been identified. The aim of the present study was to examine whether different types of sexual motivations based on Self-Determination Theory can account for compulsive sexual behaviour. METHOD: The study was conducted on a non-clinical sample of nearly 1000 participants. Sexual motivation was assessed using the Sexual Motivation Scale and compulsive sexual behaviour was assessed using the Hypersexual Behaviour Inventory. Both measures showed adequate reliability. Multiple linear regression was performed to analyse the relationship between the variables. RESULTS: In the regression, controlling for gender, of the six motivational factors, integrated (ß = 0.167), introjected (ß = 0.074) and amotivation (ß = 0.128) were found significant (p <0.001), and identified was nearly significant (ß = 0.53; p = 0.065). The intrinsic (ß = -0.032; p = 0.366) and extrinsic (ß = -0.027; p = 0.168) forms of motivation had no impact on hypersexuality. The total explained variance of the model was 18% (p <0.001). Results indicated that three of the six motivational factors positively and weakly predicted hypersexuality. CONCLUSION: The original hypothesis of the study, that less self-determined motivated sexual behaviour would be a better predictor of compulsive sexual behaviour, was not confirmed. In practice, positively related variables, especially amotivation, may play an important role in psychotherapeutic processes. However, in order to better understand compulsive sexual behaviour, additional factors still need to be explored.


Assuntos
Comportamento Compulsivo , Motivação , Comportamento Sexual , Humanos , Masculino , Feminino , Comportamento Sexual/psicologia , Adulto , Comportamento Compulsivo/psicologia , Pessoa de Meia-Idade , Inquéritos e Questionários , Adolescente , Disfunções Sexuais Psicogênicas/psicologia , Autonomia Pessoal , Transtorno do Comportamento Sexual Compulsivo
12.
J Infect Dis ; 2023 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-37740556

RESUMO

BACKGROUND: In the Netherlands, the number of mpox cases started declining before mpox vaccination was initiated. Most cases were men who have sex with men (MSM). We investigated whether the decline in mpox could be attributed to infection-induced immunity or behavioural adaptations. METHODS: We developed a transmission model and accounted for possible behavioural adaptations: less casual partners and shorter time until MSM with mpox refrain from sexual contacts. RESULTS: Without behavioural adaptations, the peak in modelled cases matched observations, but the decline was less steep than observed. With behavioural adaptations in the model, we found a decline of 16-18% in numbers of casual partners in June and 13-22% in July 2022. Model results showed a halving of the time before refraining from sex. When mpox vaccination started, 57% of MSM with very high sexual activity in the model had been infected. Model scenarios revealed that the outbreak could have waned by November 2022 even without vaccination. CONCLUSIONS: The limited duration of the mpox outbreak in the Netherlands can be ascribed primarily to infection-induced immunity among MSM with high sexual activity levels. The decline was accelerated by behavioural adaptations. Immunity among those most sexually active is essential to impede mpox resurgence.

13.
Int J Cancer ; 153(2): 417-426, 2023 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-36943030

RESUMO

Human papillomavirus (HPV)-related oropharyngeal cancer (OPC) is increasing in incidence, yet very little is known about oral HPV infection in the general population. In this Australian-based study we assess oral HPV prevalence according to HPV vaccination status. Participants of the Oral Diversity Study were Australian residents, aged 18 to 70 years, who filled out a questionnaire about lifestyle and sexual behaviour, and donated a saliva sample in 2020 to 2021. We obtained permission to access HPV vaccination status through record linkage with the Australian Immunisation Register. Saliva samples were DNA extracted, DNA quality checked and analysed for HPV. We recruited 1023 participants to the Oral Diversity Study. Nine hundred twenty-one returned a saliva sample for analysis, 911 passed the DNA quality check and were included in the study. The oral HPV prevalence was 7.2%, and was strongly associated with sexual behaviours. We identified 27 different HPV types; 53% of participants carried high-risk HPV types, with no difference between the vaccinated and the unvaccinated groups (53% both, P = .979). Two hundred thirty participants (26%) were HPV vaccinated. The oral prevalence of the nine HPV types included in the nonavalent HPV vaccine was significantly lower in the vaccinated participants compared to the unvaccinated (0.9% vs 3.4%; P = .022). These findings suggest that a sizeable minority of Australian residents harbour oral HPV infections, and many of these are high-risk subtypes. We found some evidence that HPV vaccination resulted in lower prevalence of oral HPV infections of vaccine-specific types. Larger surveys are required to confirm these findings.


Assuntos
Infecções por Papillomavirus , Vacinas contra Papillomavirus , Humanos , Austrália/epidemiologia , Papillomavirus Humano , Papillomaviridae , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Prevalência , Vacinação , Boca/virologia , Saliva/virologia
14.
Proc Biol Sci ; 290(1997): 20230002, 2023 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-37122255

RESUMO

Same-sex sexual behaviour (SSB) occurs in many animals and is often treated as an anomaly requiring special explanation. One common explanation for SSB is mistaken identity. However, animals make similar 'mistakes' in other contexts-such as attempting to mate with immature individuals or inanimate objects. Framing such behaviours as 'mistakes' risks misinterpreting how animals make flexible mating decisions. Here we make a case for an alternative approach to thinking about SSB by instead considering an individual's mating filter. A broad filter means directing courtship toward anything that resembles a potential mate, whilst a narrow filter means only courting with receptive targets. We illustrate this approach by examining the mating filters of male Pacific field crickets (Teleogryllus oceanicus). We find that males engage in SSB but also misdirect courtship toward juveniles (but not plastic crickets). This finding suggests that SSB is not an anomaly and is better considered alongside other misdirected behaviours. We argue that by viewing misdirected behaviours through the lens of mating filters rather than as 'mistakes' we can build a more nuanced understanding of reproductive behaviour and begin to determine when having a broader mating filter can be advantageous.


Assuntos
Gryllidae , Animais , Masculino , Reprodução , Corte , Comportamento Sexual Animal
15.
HIV Med ; 24(9): 990-999, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37128161

RESUMO

INTRODUCTION: HIV prevalence among transgender women is high worldwide. The objectives of the present study were to estimate the current prevalence of HIV and identify factors associated with high HIV burden among transgender women in Paraguay. METHODS: Transgender women aged ≥15 years in four regions of Paraguay were recruited by Starfish sampling between February and March 2021. RESULTS: In total, 322 transgender women were included. Mean age was 31 years (range 15-67), and 102 had positive HIV test results (31.7%, 95% confidence interval [CI] 26.6-37.1). In multivariable analysis, factors associated with HIV infection were age at first intercourse ≤17 years (adjusted odds ratio [aOR] 5.47; 95% CI 1.05-28.42), >10 years difference in age with the last sexual partner (aOR 1.60; 95% CI 1.04-2.46), substance use (mostly cocaine) (aOR 3.00; 95% CI 1.47-6.12), higher risk perception (aOR 3.08; 95% CI 1.53-6.17), not testing for HIV (aOR 1.23; 95% CI 1.09-1.39), and accessed by a peer educator (aOR 3.86; 95% CI 1.77-8.38). CONCLUSIONS: Sexual debut as a minor and a large age difference with sexual partners are associated with high burden of HIV among transgender women in Paraguay. Our study corroborates the finding of cocaine use during sex as a risk factor for HIV. Prevention programmes must address structural and social vulnerabilities to stem the tragically high burden of HIV among transgender women.


Assuntos
Infecções por HIV , Soropositividade para HIV , HIV-1 , Pessoas Transgênero , Humanos , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Infecções por HIV/epidemiologia , Paraguai/epidemiologia , Comportamento Sexual , Fatores de Risco , Prevalência
16.
Sex Transm Infect ; 99(3): 156-161, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-35636931

RESUMO

OBJECTIVES: Observational studies demonstrate an association between vaginal douching and bacterial vaginosis (BV) characterised by Gram stain. We sought to describe the effect of a douching cessation intervention on the composition and structure of the vaginal microbiota and molecular-BV, a state defined by low levels of Lactobacillus spp evaluated by molecular tools. METHODS: 33 women self-collected mid-vaginal swabs twice weekly (982 samples) during a douching observation phase (4 weeks) followed by a douching cessation phase (12 weeks) in a 2005 single crossover pilot study conducted in Baltimore, Maryland. Vaginal microbiota were characterised by 16S rRNA gene amplicon sequencing (V3-V4) and clustered into community state types (CSTs). Conditional logistic regression modelling allowed each participant to serve as their own control. Wilcoxon signed-rank tests were used to evaluate changes in microbiota between phases. Broad-range qPCR assays provided estimates of bacterial absolute abundance per swab in a subsample of seven participants before and after douching. A piecewise linear mixed effects model was used to assess rates of change in bacterial absolute abundance before and after douching. RESULTS: There was no statistically significant change in the odds of molecular-BV versus Lactobacillus-dominated CSTs comparing the douching cessation interval to douching observation (adjusted OR 1.77, 95% CI 0.89 to 3.55). Removal of L. iners-dominated CST III from the outcome did not affect the results. There were no significant changes in the relative abundance of four Lactobacillus spp and no meaningful changes in other taxa investigated. There was no significant change in bacterial absolute abundance between a participant's sample collected 3 days prior to and following douching (p=0.46). CONCLUSIONS: In this pilot study, douching cessation was not associated with major changes in vaginal microbiota. Douching cessation alone may not durably shift the vaginal microbiota and additional interventions may be needed to restore optimal vaginal microbiota among those who douche.


Assuntos
Vaginose Bacteriana , Humanos , Feminino , Vaginose Bacteriana/microbiologia , Irrigação Terapêutica , Projetos Piloto , RNA Ribossômico 16S/genética , Vagina/microbiologia , Lactobacillus/genética , Bactérias/genética
17.
Sex Transm Infect ; 99(7): 467-473, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-36858811

RESUMO

OBJECTIVES: We examined sexual behaviour, sexually transmitted infection (STI) and HIV testing and testing need, and identified associated factors, among gay, bisexual and other men who have sex with men (GBMSM) in the UK after COVID-19 restrictions ended, and compared these with 'pre-pandemic' estimates. METHODS: We analysed survey data from GBMSM (N=1039) recruited via social media and Grindr in November-December 2021. We then compared Grindr-recruited 2021 participants (N=437) with those from an equivalent survey fielded in March-May 2017 (N=1902). Questions on sexual behaviour and service use had lookback periods of 3-4 months in both surveys. Unmet testing need was defined as reporting any new male and/or multiple condomless anal sex (CAS) partners without recent STI/HIV testing. Participants were UK residents, GBMSM, aged ≥16 years who reported sex with men in the last year. Multivariable logistic regression identified associated sociodemographic and health-related factors with unmet STI/HIV testing need in 2021, and then for 2017/2021 comparative analyses, adjusting for demographic differences. RESULTS: In 2021, unmet STI and HIV testing need were greater among older GBMSM (aged ≥45 years vs 16-29 years; adjusted OR (aOR): 1.45 and aOR: 1.77, respectively), and lower for pre-exposure prophylaxis (PrEP) users (vs non-PrEP users; aOR: 0.32 and aOR: 0.23, respectively). Less unmet STI testing need was observed among HIV-positive participants (vs HIV-negative/unknown; aOR: 0.63), and trans and non-binary participants (vs cisgender male; aOR: 0.34). Between 2017 (reference) and 2021, reported sexual risk behaviours increased: ≥1 recent new male sex partner (72.1%-81.1%, aOR: 1.71) and ≥2 recent CAS partners (30.2%-48.5%, aOR: 2.22). Reporting recent STI testing was greater in 2021 (37.5%-42.6%, aOR: 1.34) but not recent HIV testing, and there was no significant change over time in unmet STI (39.2% vs 43.7%) and HIV (32.9% vs 39.0%) testing need. DISCUSSION: Comparable community surveys suggest that UK resident GBMSM may have engaged in more sexual risk behaviours in late 2021 than pre-pandemic. While there was no evidence of reduced STI/HIV service access during this time, there remained considerable unmet STI/HIV testing need.


Assuntos
COVID-19 , Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Infecções Sexualmente Transmissíveis , Masculino , Humanos , Homossexualidade Masculina , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , COVID-19/diagnóstico , COVID-19/epidemiologia , COVID-19/prevenção & controle , Infecções Sexualmente Transmissíveis/diagnóstico , Infecções Sexualmente Transmissíveis/epidemiologia , Infecções Sexualmente Transmissíveis/prevenção & controle , Comportamento Sexual , Inquéritos e Questionários , Teste de HIV , Reino Unido/epidemiologia
18.
Sex Transm Infect ; 99(6): 386-397, 2023 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-36973042

RESUMO

OBJECTIVES: To assess sexual behaviour, and sexual and reproductive health (SRH) outcomes, after 1 year of the COVID-19 pandemic in Britain. METHODS: 6658 participants aged 18-59 and resident in Britain completed a cross-sectional web-panel survey (Natsal-COVID-Wave 2, March-April 2021), 1 year after the first lockdown. Natsal-COVID-2 follows the Natsal-COVID-Wave 1 survey (July-August 2020) which captured impacts in the initial months. Quota-based sampling and weighting resulted in a quasi-representative population sample. Data were contextualised with reference to the most recent probability sample population data (Natsal-3; collected 2010-12; 15 162 participants aged 16-74) and national surveillance data on recorded sexually transmitted infection (STI) testing, conceptions, and abortions in England/Wales (2010-2020). The main outcomes were: sexual behaviour; SRH service use; pregnancy, abortion and fertility management; sexual dissatisfaction, distress and difficulties. RESULTS: In the year from the first lockdown, over two-thirds of participants reported one or more sexual partners (women 71.8%; men 69.9%), while fewer than 20.0% reported a new partner (women 10.4%; men 16.8%). Median occasions of sex per month was two. Compared with 2010-12 (Natsal-3), we found less sexual risk behaviour (lower reporting of multiple partners, new partners, and new condomless partners), including among younger participants and those reporting same-sex behaviour. One in 10 women reported a pregnancy; pregnancies were fewer than in 2010-12 and less likely to be scored as unplanned. 19.3% of women and 22.8% of men were distressed or worried about their sex life, significantly more than in 2010-12. Compared with surveillance trends from 2010 to 2019, we found lower than expected use of STI-related services and HIV testing, lower levels of chlamydia testing, and fewer conceptions and abortions. CONCLUSIONS: Our findings are consistent with significant changes in sexual behaviour, SRH, and service uptake in the year following the first lockdown in Britain. These data are foundational to SRH recovery and policy planning.


Assuntos
COVID-19 , Infecções Sexualmente Transmissíveis , Feminino , Humanos , Masculino , Controle de Doenças Transmissíveis , COVID-19/epidemiologia , COVID-19/prevenção & controle , Estudos Transversais , Inquéritos Epidemiológicos , Pandemias , Saúde Reprodutiva , Comportamento Sexual , Parceiros Sexuais , Infecções Sexualmente Transmissíveis/epidemiologia , Reino Unido/epidemiologia , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso
19.
BMC Cancer ; 23(1): 407, 2023 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-37147593

RESUMO

BACKGROUND: Worldwide, a significant proportion of head and neck cancers is attributed to the Human papillomavirus (HPV). It is imperative that we acquire a solid understanding of the natural history of this virus in head and neck squamous cell carcinoma (HNSCC) development. Our objective was to investigate the role of sexual behaviour in the occurrence of HNSCC in the French West Indies. Additionally, we evaluated the association of high risk of HPV (Hr-HPV) with sexual behaviour in risk of cancer. METHODS: We conducted a population-based case-control study (145 cases and 405 controls). We used logistic regression models to estimate adjusted odds-ratios (OR), and their 95% confidence intervals (CI). RESULTS: Compared to persons who never practiced oral sex, those who practiced at least occasionally had a lower HNSCC risk. First sexual intercourse after the age of 18 year was associated with a 50% reduction of HNSCC risk, compared to those who began before 15 years. HNSCC risk was significantly reduced by 60% among persons who used condoms at least occasionally. The associations for ever condom use and oral sex were accentuated following the adjustment for high-risk HPV (Hr-HPV). Oral Hr-HPV was associated with several sexual behaviour variables among HNSCC cases. However, none of these variables were significantly associated with oral HPV infections in the population controls. CONCLUSION: First intercourse after 18 years, short time interval since last intercourse and ever condom use were inversely associated with HNSCC independently of oral Hr-HPV infection. Sources of transmission other than sexual contact and the interaction between HPV and HIV could also play a role in HNSCC etiology.


Assuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Infecções por Papillomavirus , Humanos , Adolescente , Carcinoma de Células Escamosas de Cabeça e Pescoço/epidemiologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Carcinoma de Células Escamosas/epidemiologia , Estudos de Casos e Controles , Papillomaviridae , Neoplasias de Cabeça e Pescoço/etiologia , Neoplasias de Cabeça e Pescoço/complicações , Comportamento Sexual , Papillomavirus Humano , Região do Caribe
20.
Trop Med Int Health ; 28(3): 237-246, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36717965

RESUMO

OBJECTIVES: This cross-sectional survey aimed to explore associations between age of menarche, early sexual debut and high-risk sexual behaviour among urban Tanzanian schoolgirls. METHODS: Secondary schoolgirls aged 17-18 years from Mwanza, Tanzania, participated in structured face-to-face questionnaire-based interviews, conducted by nurses and clinicians. Age of menarche was evaluated in categories of 11-12, 13-14, 15-16 or ≥17 years. Primary outcome measures were self-reported early sexual debut (first vaginal sex at <16 years) and high-risk sexual behaviour, including non-use of condoms, having sex for gifts/money, having older sexual partners and/or other risky behaviours. RESULTS: Of 401 girls enrolled, 174 (43.4%) reported prior vaginal sex. Prevalence of early sexual debut was 14.2% but pressured/forced sex and risky sexual behaviours were common. Adjusted for potential confounding, younger age at menarche was associated with early sexual debut (adjusted odds ratio for linear trend: 1.88 per category, 95% confidence interval: 1.21-2.92, p = 0.005). This association remained after excluding girls with first sex at <8 years or experiencing pressure or force at first sex. Further, adjusted for potential confounding (including ever experiencing forced sex), early sexual debut was associated with high-risk sexual behaviour (adjusted odds ratio: 2.85, 95% confidence interval: 1.38-5.88, p = 0.004). CONCLUSIONS: Among urban Tanzanian school girls, younger age of menarche was associated with early sexual debut, and early sexual debut was associated with high-risk sexual behaviour. Researchers and public health professionals developing and delivering interventions aimed at preventing adverse sexual health outcomes should consider the impact of these early biological and sexual exposures.


Assuntos
Menarca , Comportamento Sexual , Feminino , Humanos , Estudos Transversais , Tanzânia/epidemiologia , Parceiros Sexuais
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