CONTEXT Research suggesting that female teenagers who date substantially older males are at increased risk for negative health outcomes supports the need for statutory rape laws. However, prior research has generally ignored the social context of adolescence when examining the risks associated with dating an older partner. METHODS Data from Waves 1 (1995) and 2 (1996) of the National Longitud...

OBJECTIVE To compare timed intercourse and IUI with the husband's sperm in patients with unexplained infertility who are undergoing superovulation with gonadotropins. DESIGN Meta-analysis. All published reports of randomized, prospective studies with an English-language abstract extracted from MEDLINE were analyzed. A crossover search was done from the papers obtained. SETTING Academic cent...

OBJECTIVES To determine the minimal time to successful intercourse after taking sildenafil citrate for erectile dysfunction (ED). METHODS Male patients with ED (mean age 60 years; mean ED duration 7.0 years) who were successfully treated with sildenafil (100 mg) for 2 months or longer were randomized to sildenafil (n = 115) or placebo (n = 113) for 4 weeks of double-blind treatment. Using a s...

Background: Implantation failure is the most important cause of recurrent in vitro fertilization/intra cytoplasmic sperm injection (IVF/ICSI) failure. Several reports suggest that intercourse during the peritransfer period might improve pregnancy rates. This study is designed to determine whether intercourse during the peritransfer period will improve pregnancy and implantation rates in patient...

PURPOSE This study aimed at investigating sexual behavior patterns of elderly residents of urban areas in South Korea and their correlation with lower urinary tract symptoms. MATERIALS AND METHODS From May, 2009 to October, 2009, 154 males and 299 females over 60 years old who visited senior welfare centers of Seoul were administered a questionnaire on sex life patterns and voiding symptoms. ...

BACKGROUND Pregnancy stimulates partners to search for ways to preserve their mutual emotional relations and satisfy their sexual needs, with some limitations. This study evaluates the frequency and perception of sexual intercourse during pregnancy in a group of Iranian couples. MATERIALS AND METHODS In this cross-sectional study, 155 pregnant women were recruited from two academic clinics in...

OBJECTIVE To examine contraceptive methods used by rural adolescent women and socio-demographic factors associated with not using effective contraception. METHODS Students in three Nova Scotia high schools participated in a survey concerning sexual activity, behaviours, and contraception used at last intercourse. Proportions using no effective contraception were examined with respect to socio...

CONTEXT Extensive research has explored the relationship between parenting and teenagers' sexual risk-taking. Whether parenting is associated with wider aspects of teenagers' capacity to form satisfying sexual relationships is unknown. METHODS Self-reported data were collected in 2007 from 1,854 students, whose average age was 15.5 years, in central Scotland. Multivariate analyses examined as...

Purpose: This study aimed to clarify the prevalence and influential factors of sexual behaviors among Chinese junior high school students using the validated measures and research methods employed in the Japanese study for the purpose of developing an effective sex education program to prevent premature sexual behaviors among Chinese junior high school students. Methods: The study sample was co...

CONTEXT Although there is increasing recognition of the scope and significance of sexual coercion experienced by adolescent women in developing countries, evidence on its consequences for reproductive health remains limited. METHODS A sample of 575 sexually experienced 15-19-year-old women were interviewed in 2001-2002 as part of the ongoing Rakai surveillance project in rural Uganda. Chi-squ...