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搜索结果: 1-6 共查到Sexual Activity相关记录6条 . 查询时间(0.093 秒)
Context: Adolescent pregnancy, birth, abortion and sexually transmitted disease (STD) rates are much higher in the United States than in most other developed countries. Methods: Government statist...
Context: Researchers have paid little attention to adolescents' experience with genital sexual activity other than vaginal intercourse, even though oral and anal intercourse expose youth to the risk o...
Context: The formulation of policies and development of programs regarding adolescent sexual and reproductive health requires up-to-date information on levels of and trends in teenage sexual activity....
Context: Changes in the sexual behavior of teenagers can have a significant impact on levels of adolescent pregnancy and transmission of sexually transmitted diseases (STDs). Understanding the role pl...
Data on substance use and sexual activity from a nationally representative, probability-based sample of young adults aged 18-30 in 1990 indicate that 86% of respondents had had sex in the previous 12 ...
This paper estimates a formal model of social norms with multiple equilibria using data from the Add-Health Survey of 20,000 U.S. high school students. The results suggest that there is considerable d...

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