Genetic and Environmental Contributions to Variance in Age at First Sexual Intercourse
نویسندگان
چکیده
منابع مشابه
Childhood sexual abuse moderates genetic influences on age at first consensual sexual intercourse in women.
We examine interactive effects of childhood sexual abuse (CSA) on heritable variation in age at first consensual sexual intercourse in a young cohort of 3,350 female and 2,724 male Australian twins. Consistent with hypotheses, genetic influences explained little if any variation in age at first consensual sexual intercourse for female twins reporting CSA (CSA(+)), with shared environment explai...
متن کاملThe consistency of recalled age at first sexual intercourse.
It is widely believed that people can remember the age at which they first had sexual intercourse. Questions about age at onset are routinely asked in population sexual behaviour surveys and in clinical history-taking. However, there are limited test-retest data, especially with regard to individual differences in unreliable recall. In this study, telephone interviews and follow-ups an average ...
متن کاملAge at menarche and age at first sexual intercourse: a prospective cohort study.
OBJECTIVE Younger age at menarche (AAM) may put girls at risk for earlier first sexual intercourse (FSI). Young age at FSI has far-reaching negative outcomes. We describe the longitudinal relationship between AAM and FSI in a large prospective birth cohort. METHODS AAM was collected from 554 girls from the Western Australia (Raine) Pregnancy Cohort Study, prospectively from age 10 or retrospe...
متن کاملAge at first intercourse and HPV immunization.
The licence of the first human papillomavirus vaccine (HPV) has important implications for the most appropriate age for a mandatory immunization. In this paper data taken from a recent study show that more than 10% of the Italian women report having already had a sexual intercourse by the age of 15. There is thus sufficient evidence to recommend administration of the HPV vaccine to all girls by...
متن کاملGenetical, environmental and personality factors influencing the age of first sexual intercourse in twins.
A trend towards younger sexual initiation has been reported in recent years sug~ gesting that the trait is currently influenced by cultural factors. It is reasonable to SUspect, however, that in the past the age of first sexual intercourse could have bOOn partly under genetica.J.Coritrol and subject to natural selection. Although it would be premature to speculate about any relationship between...
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ژورنال
عنوان ژورنال: Psychological Science
سال: 1997
ISSN: 0956-7976,1467-9280
DOI: 10.1111/j.1467-9280.1997.tb00414.x