Anal cancer is a disease with a low but gradually increasing incidence, especially in developed countries. Most of these cancers are caused by the HPV. In Switzerland, more than 70 % of the sexually active population is infected with HPV at least once, making it the most common sexually transmitted...
Anogenital human papillomaviruses (HPV) are highly prevalent in sexually active populations, with HR-HPV being associated with dysplasia and cancers. The consequences of cervical HPV infection are well-known, whereas those of the anus are less clear. The correlation of cervical and anal HPVs with th...
La PrEP est un outil efficace dans la réduction de l’infection au VIH, adressé principalement aux HSH et aux personnes trans les plus exposés. Cependant, malgré une connaissance de ce traitement préventif et une perception positive de son efficacité, une minorité de personnes pourtant éligibles y ad...
Human Papillomaviruses (HPV) are highly prevalent in the sexually active populations, with a significant burden in terms of health and psychological cost in all class ages. High-risk (HR) HPV genotypes are associated with anogenital dysplasia and cancers, and anal HPV-induced cancer is increasingly...
Anal intercourse (AI) among heterosexuals is an understudied and taboo subject. This 2017 Swiss national study aimed to describe the characteristics and motivations of heterosexual young adults practicing AI. Participants with any same-sex experience, same-sex attraction or non-heterosexual identity...
Over the last decade, syphilis diagnoses among men-who-have-sex-with-men (MSM) have strongly increased in Europe. Understanding the drivers of the ongoing epidemic may aid to curb transmissions. In order to identify the drivers of syphilis transmission in MSM in Switzerland between 2006 and 2017 as...
Purpose: Swiss guidelines indicate that the first gynecological visit should take place when initiating sexual activity or, at the latest, at age 21 to perform a first pap smear. However, close to 5% of young adult females in our survey report never having seen a gynecologist by age 26. The aim of t...
Separately addressing specific groups of people who share patterns of behavioral change might increase the impact of behavioral interventions to prevent transmission of sexually transmitted infections. We propose a method based on machine learning to assist the identification of such groups among me...
Syphilis is re-emerging globally in general and HIV-infected populations, and repeated syphilis episodes may play a central role in syphilis transmission among core groups. Besides sexual behavioral factors, little is known about determinants of repeated syphilis episodes in HIV-infected individuals...
The crime of fornication, which was directed against all sexual activities outside marriage, can first be found in the Constitutio Criminalis Theresiana of 1767/68. It applied to all Crown Lands of the Habsburg Empire and provided for severe penalties. The Josephine Criminal Law of 1787 eradicated i...
"OBJECTIVE: To estimate self-reported discrimination due to sexual orientation among men who have sex with men (MSM) in Brazil and to analyze associated factors. METHODS: A cross-sectional study of 3,859 MSM recruited in 2008–2009 with respondent driven sampling. Data collection conducted in health...
"OBJECTIVE: The objective of this study is to estimate the attrition rates and evaluate factors associated with loss to follow-up between 1994 and 2011 in an open cohort of HIV-negative men who have sex with men. METHODS: The Project Horizonte is an open cohort study that aimed to assess the inciden...
A sodomite burnt at the stake (Lille, 1458) Verbrennung zweier Sodomiter (Zürich, 1482) in einer Darstellung in Diebold Schillings Chronik der Burgungderkriege (ca. 1483). Quelle: WikCommons; gemeinfrei. Sodomy, mainly understood as referring to sexual acts between men, and above all anal intercours...
Objet : Le Net Gay Baromètre 2013 a interrogé les Hommes ayant des relations sexuelles avec d'autres hommes, utilisateurs des sites de rencontres et des réseaux sociaux, sur leurs modes de vie, leur santé et la prévention, tout en abordant de nouveaux enjeux, sources de vulnérabilité. Nous proposons...
BACKGROUND: Serosorting is practiced by men who have sex with men (MSM) to reduce human immunodeficiency virus (HIV) transmission. This study evaluates the prevalence of serosorting with casual partners, and analyses the characteristics and estimated numbers of serosorters in Switzerland 2007-2009....
: BACKGROUND: An increase in new HIV cases among men who have sex with men (MSM) has been reported in Switzerland since 2001. A rapid result HIV testing for MSM through voluntary counselling and testing (VCT) facility ("Checkpoint") was opened in Geneva in 2005. This gay-friendly facility, the first...
Objective: The online survey, “Net Gay Baromètre”, provides a portrait of men visiting websites for gay men to meet and can help describe their sexuality with casual and regular partners and guide prevention activities accordingly. Respondents of the baby boomer generation are described here.Method:...
Objectives: With data from this biennial study, we will present some of the HIV-positive respondents’ social and sexual practices and identify predictors of regular unprotected anal intercourse in this group.Method: Men were recruited between January and April 2009 (n = 19 052) through personalized...
The Net Gay Barometre is a biennial survey among users of France's most popular websites for men who have sex with men (MSM). Given the recent increases in HIV infection and sexual risk practices among French MSM, this study aims to: (1) create a socio-sexual profile of HIV-negative men (HIV-); (2)...
The aim of this study was to analyze the circumstances of first anal intercourse (FAI) among men who have sex with men (MSM) and to identify factors associated with condom use at this event. We conducted a cross-sectional survey among a convenience sample of MSM living in Switzerland (N = 2,200). An...
Human immunodeficiency virus (HIV)-infected men who have sex with men (MSM) were enrolled in an anorectal Chlamydia trachomatis screening study. Anorectal Chlamydia DNA was detected in 16 (10.9%) of 147 men, mainly among asymptomatic patients and patients having >20 sexual partners. These results su...
For men who have sex with men (MSM), the Internet has imposed itself in the past decade as the place to be to meet other men with similar interests for sex or just to surf in search of excitement. This is a biennial study on the MSM in France. Between December 2005 and February 2006, 15,085 MSM comp...
"Objective. To examine the likelihood of Latino day laborers being solicited for sex by other men. Material and Methods. 450 Latino day laborers were recruited in Los Angeles, California, from July to September 2005. Logistic regression analysis was used to determine which day laborers were more lik...
Introduction: 1) Withdrawal before ejaculation, "serosorting" (to choose a partner of same serostatus) and "strategic positioning" (only insertive vs. only receptive role in anal sex according to serostatus) are known to be used by MSM as alternatives to condom use. 2) Despite their questionable lev...
"The purpose of this paper is to analyze the constuctionand practice of homoerotic desire in a sample ofHispanic men who had sex with men (MSM). The interviewswere carried out as part of a larger project onmasculine and sexual identities. Among the themesdiscussed here are the relationships between...