Much research has been conducted on ethnic differences in sexuality, but few studies have systematically assessed the importance of acculturation in sexual behavior. The present study assessed general differences in normative sexual practices in healthy Euro-American, Asian, and Hispanic populations, using measures of acculturation to analyze the relative effects of heritage and mainstream cult...

The widespread occurrence of sexual organisms despite the high costs of sex has long intrigued biologists. The best-known costs are the twofold cost of producing males and the cost associated with producing traits to attract mates and to interact with mating partners, such as exaggerated sexual behaviors and morphological modifications. These costs have been inferred from studies of plants and ...

A meta-analytic review of the influence of HIV risk reduction interventions on sexual occasions, number of partners, and abstinence was conducted to assess whether condom-related interventions inadvertently undermine sexual risk reduction efforts by increasing the frequency of sexual behavior. Included studies examined sexual risk reduction strategies and used a controlled design. Data from 174...

BACKGROUND New HIV infections among sub-Saharan Africa's adolescent girls and young women (AGYW, ages 15-24) greatly exceed those of their male peers. In addition, AGYW tend to acquire HIV at a much earlier age. Understanding the factors associated with HIV infection in AGYW could inform effective prevention and treatment interventions for these populations and their male sexual partners. MET...

Seeking sexual partners online is associated with sexual risk-taking among men who have sex with men (MSM), but it is not well understood how this use of the Internet is implicated in potential sexual risks. The present study explores whether fantasizing about unprotected anal intercourse (UAI) during online chatting is associated with UAI with partners met online. An online survey of 2058 MSM ...

One of the most reliable and perplexing findings from surveys of sexual behavior is that men report substantially more sexual partners than women do. We use data from national sex surveys and studies of prostitutes and their clients in the United States to examine sampling bias as an explanation for this disparity. We find that prostitute women are underrepresented in the national surveys. Once...

BACKGROUND Access to antiretroviral therapy may have changed condom use behavior. In January 2008, recommendations on condom use for human immunodeficiency virus (HIV)-positive persons were published in Switzerland, which allowed for unprotected sex under well-defined circumstances ("Swiss statement"). We studied the frequency, changes over time, and determinants of unprotected sex among HIV-po...

Objective: to investigate the perception of nurses of the Family Health Strategy on the factors that influence adhesion to treatment of sexual partners of pregnant women with syphilis. Methods: it is a qualitative research, made with 10 nurses. To collect data, a semi-structured interview was used. The data were submitted to thematic analysis. Results: the following categories were identified: ...

OBJECTIVE To determine the association between the number of sexual partners and alcohol consumption in adolescents and young schoolchildren. METHODS The sample consisted of students from public schools aged 12-24 years who answered the Brazilian version of the Youth Risk Behavior Survey questionnaire. The analysis was performed by multinomial logistic regression model. RESULTS 1275 student...