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The Association of Sexual Intercourse During Pregnancy With Labor Onset
Coitus Pregnancy Gestational Age Labor Onset
2015/10/16
Background: Pregnancy is one of the most critical periods in women's lives. Sexual relationships change in this period. Monitoring of uterine contractions has been shown increase in uterine activity a...
Sexual Intercourse and the Age Difference Between AdolescentFemales and Their Romantic Partners
Sexual Intercourse Romantic Partners Adolescent Females
2009/9/17
CONTEXT: The age difference between a female and her partner may influence relationship dynamics in ways that put the female at increased risk of unintended pregnancies and sexually transmitted diseas...
The Transition of Adolescent Males To First Sexual Intercourse：Anticipated or Delayed?
Adolescent Males sexual activity broadens First Sexual Intercourse
2009/9/17
CONTEXT: Recognition of the different social, psychological and behavioral contexts within which adolescents initiate sexual activity broadens the understanding of teenage sexual behavior beyond the t...
Effects of a Parent-Child Communications Intervention on Young Adolescents' Risk for Early Onset of Sexual Intercourse
Parent-Child Communications Sexual Intercourse Young Adolescents
2009/9/16
Context: The quality of parent-child communications about sex and sexuality appears to be a strong determinant of adolescents' sexual behavior. Evaluations of interventions aimed at improving such com...
Sexual Intercourse, Abuse and Pregnancy Among Adolescent Women：Does Sexual Orientation Make a Difference?
Sexual Intercourse Adolescent Women Pregnancy
2009/9/15
Context: Although a limited amount of research has retrospectively explored the childhood and adolescent heterosexual experiences of lesbians, little is known about the prevalence of heterosexual beha...
Gender and Ethnic Differences in the Timing of First Sexual Intercourse
First Sexual Intercourse Ethnic Gender
2009/9/14
Context: Whether the effect of gender on the risk of first intercourse is influenced by adolescents' ethnicity has received limited attention in research on age at first sex. Such information could pr...
Endocrinological, biophysical, and biochemical parameters of semen collected via masturbation versus sexual intercourse
semen masturbation sexual intercourse
2009/2/12
In clinical programs of assisted reproduction involving infertile males, it is essential to obtain semen of maximum quality. To evaluate ways of achieving this objective, and to assess the fertilizi...
Bayesian spatial analysis of demographic survey data An application to contraceptive use at first sexual intercourse
contraceptive use FFS hierarchical Bayesian modeling Italy Monte Carlo Markov Chain, multilevel statistical models spatial statistical demography
2008/12/4
In this paper we analyze the spatial patterns of the risk of unprotected sexual intercourse for Italian women during their initial experience with sexual intercourse. We rely on geo-referenced survey ...
Forced Sexual Intercourse Among American High School Students: Statistical Correlates from a National Survey
Forced Sexual Intercourse American High School Students American High School Students
2008/5/2
Clinicians and educators alike seek to understand the associations between forced sex and depression, substance abuse, suicide, and sexually transmissible diseases. We sought to determine whether sel...