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Sexual Intercourse

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Journal Article
Demography (2006) 43 (4): 747–769.
Published: 01 November 2006
... the association between age at first sexual intercourse and the 48-bp repeat polymorphism in the dopamine receptor D4 gene (DRD4). The twin analysis shows that MZ twins correlate their timing of first sex to a much greater extent than do the same-sex DZ twins. Our analysis of the polymorphisms in DRD4 indicates...
Journal Article
Demography (2022) 59 (6): 2271–2293.
Published: 01 December 2022
... was assessed in the RDSL by asking “If you were to have unprotected sexual intercourse with someone you just met, what do you think are the chances that you would get HIV or AIDS?” This variable did not change the overall model results in terms of direction, magnitude, or significance (findings available upon...
FIGURES
Includes: Supplementary data
Image
Published: 01 December 2022
Fig. 2 Predicted probabilities of sexual intercourse, hormonal contraceptive use, and coital contraceptive use, by desire to avoid pregnancy and desire for sex. Note different scales on the y -axes. More
Journal Article
Demography (2007) 44 (4): 705–728.
Published: 01 November 2007
...Ester Lucia Rizzi; Gianpiero Dalla-Zuanna Abstract Individual data on menstrual cycles of noncontracepting women living in Western countries were used in order to verify whether the biological seasonality of conception persists after sexual behavior is controlled for. Episodes of intercourse were...
Journal Article
Demography (1989) 26 (4): 563–577.
Published: 01 November 1989
...-child pairs of white women in the Detroit metropolitan area, we tested this hypothesis, using both mother's and child's attitudes toward premarital sexual intercourse and the child's report of whether he or she had engaged in premarital sexual intercourse. Unlike most previous work in this area, which...
Journal Article
Demography (2017) 54 (3): 887–909.
Published: 02 May 2017
... pregnancy: more distinct partners during the study period, more sexual intercourse with men, less frequent contraceptive use, less use of a dual method (condom plus hormonal method), and more gaps in contraceptive coverage. Mostly heterosexual women resemble LGBTQ women in their contraceptive behavior...
Journal Article
Demography (2007) 44 (2): 373–388.
Published: 01 May 2007
...Jason M. Fletcher Abstract In this article, I use a national sample of high school students to test for several types of social influences on the decision to have sexual intercourse. I find evidence of endogenous social interactions (social multipliers), where the propensity of an individual...
Journal Article
Demography (1990) 27 (4): 537–557.
Published: 01 November 1990
...R. Jean Haurin; Frank L. Mott Abstract Using approximately 2,000 sibling pairs from the ab] National Longitudinal Survey of Labor Market Experience of Youth, we examine the influence of an older sibling’s age at first sexual intercourse on the sexual initiation of a younger sibling. Hypotheses...
Journal Article
Demography (2023) 60 (4): 1181–1205.
Published: 01 August 2023
..., during the conflict years also had higher odds of being HIV positive, net of cohort and control variables. Age at first sexual intercourse and number of lifetime sexual partners partially—but not fully—explain the associations between cohort and sibling deaths and HIV. These findings advance research...
FIGURES
Includes: Supplementary data
Journal Article
Demography (2011) 48 (4): 1451–1472.
Published: 02 September 2011
... and couple heterogamy—and the type of contraceptive method used at last sexual intercourse within each relationship. Results indicate that for a given individual, contraceptive method choice varies across relationships as a function of these characteristics, even after we account for important individual...
Includes: Supplementary data
Journal Article
Demography (2019) 56 (3): 863–890.
Published: 06 May 2019
...Mónica L. Caudillo Abstract Research has documented a negative association between women’s educational attainment and early sexual intercourse, union formation, and pregnancy. However, the implications that school progression relative to age may have for the timing and order of such transitions...
Includes: Supplementary data
Journal Article
Demography (1967) 4 (1): 30–70.
Published: 01 March 1967
... population, proportion of nonfarm selfemployment, and overcrowded housing and show a negative significant relationship between fertility and communism. The study does not establish statistically significant relations, however, for population density, social mobility, substitutes for sexual intercourse...
Journal Article
Demography (2022) 59 (3): 895–920.
Published: 01 June 2022
... pathways through which religiosity operates, and draw attention to the often overlooked role of sexual emotions. References Adamczyk A. ( 2009 ). Socialization and selection in the link between friends' religiosity and the transition to sexual intercourse . Sociology of Religion , 70 , 5...
FIGURES
Includes: Supplementary data
Journal Article
Demography (2004) 41 (4): 697–720.
Published: 01 November 2004
... of the timing of first adolescent intercourse that emphasizes the impact of neighborhood structural disadvantage and collective efficacy on early sexual activity (at ages 11 to 16). In turn, we explored the extent to which neighborhood factors account for racial differences in the timing of first intercourse...
Journal Article
Demography (2009) 46 (4): 695–715.
Published: 01 November 2009
... Schools, 1988–1999 . Family Planning Perspectives , 32 , 204 – 12 . 10.2307/2648173 Dorius G.L. , Heaton T.B. , & Steffen P. ( 1993 ). Adolescent Life Events and Their Association With the Onset of Sexual Intercourse . Youth and Society , 25 ( 1 ), 3 – 23 . 10.1177...
Journal Article
Demography (1988) 25 (2): 189–204.
Published: 01 May 1988
... as a specification error . Econometrica , 47 , 153 – 161 . 10.2307/1912352 Hofferth , S. L. ( 1987 ). Initiation of sexual intercourse. Ch. I . In S. L. Hoffcrth , & C. D. Hayes (Eds.), Risking the Future: Adolescent Sexuality, Pregnancy and Childbearing . Washington, D.C...
Journal Article
Demography (1993) 30 (3): 297–313.
Published: 01 August 1993
...Mark J. VanLandingham; Somboon Suprasert; Werasit Sittitrai; Chayan Vaddhanaphuti; Nancy Grandjean Abstract We use data collected in 1991 to investigate sexual activity among never-married men in Thailand, with a focus on age at first intercourse, characteristics of sexual partners, and conditions...
Journal Article
Demography (2001) 38 (4): 467–479.
Published: 01 November 2001
... (com- plete termination of breast-feeding). The definition of re- sumption of intercourse also may be subjective; for instance, some respondents may regard infrequent sex (such as once a month) as observance of postpartum sexual abstinence. In both studies, resumption of abstinence was defined...
Journal Article
Demography (1989) 26 (1): 85–98.
Published: 01 February 1989
.... The influence on the change in adolescent fertility outcomes of the decreased likelihood of marriage following a nonmarital pregnancy was compensated for by the increased use of abortion to ter-minate the pregnancy. 7 1 2011 © Population Association of America 1989 1989 Sexual Intercourse...
Journal Article
Demography (1986) 23 (4): 579–594.
Published: 01 November 1986
...Warren B. Miller 12 1 2011 © Population Association of America 1986 1986 Sexual Behavior Sexual Intercourse Married Woman Contraceptive Method Marital Satisfaction References Adler , N. ( 1979 ). Decision models in population research . Population , 2 , 187...