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To provide a comprehensive view of the unique contexts shaping adolescent development in the U.S., we utilized latent class analysis (LCA) with indicators of risk and protection across multiple domains (family, peers, school, neighborhood) and examined how latent class membership predicted heavy episodic drinking, illicit substance use, and depression in adolescence and 6 years later when participants were young adults. Data came from Wave 1 (W1) and Wave 3 (W3) of the nationally representative U.S.-based Add Health study (N = 6,649; M[subscript age] W1 = 14.06; M[subscript age] W3 = 20.38; 53.8% female; 56.1% White/European American, 22.8% Black/African American, 9.5% Hispanic, 6.7% Biracial, Asian or Pacific Islander 4.2%, American Indian/Native American 0.7%). A six-class solution was selected with classes named: Two Parent: Low Risk, Two Parent: Relationship Risks, Two Parent: Neighborhood Risks, Single Parent: Low Risk, Single Parent: Relationship Risks, and Single Parent: Multidimensional Risk. Subsequent analyses suggested that adolescent social relationships are particularly important for prevention interventions as the classes marked by substance using peers and a lack of closeness to parents and teachers in adolescence (Two Parent: Relationship Risks and Single Parent: Relationship Risks) had consistently poorer outcomes in adolescence and young adulthood.

Although early sexual initiation has been linked to negative outcomes, it is unknown whether these effects are causal. In this study, we use propensity score methods to estimate the causal effect of early sexual initiation on young adult sexual risk behaviors and health outcomes using data from the National Longitudinal Study of Adolescent to Adult Health. We found that early sexual initiation predicted having two or more partners (for both males and females) and having a sexually transmitted infection in the past year (females only) but did not predict depressive symptoms in the past week (for either gender). These results underscore the importance of continued programmatic efforts to delay age of sexual initiation, particularly for females.

Research has demonstrated associations between adolescent sexual behavior and depressive symptoms, but no single study has examined individuals at different ages throughout adolescence and young adulthood in order to determine at what ages sexual behavior may be associated with higher or lower levels of depressive symptoms. Using nationally representative longitudinal data and an innovative method, the time-varying effect model (TVEM), which examines how the strength of an association changes over time, this study examines how nonmarital sexual intercourse is associated with depressive symptoms at different ages, which behaviors and contexts may contribute to these associations, and whether associations differ for male and female participants. Findings indicate that sexual behavior in adolescence is associated with a higher level of depressive symptoms, particularly for female adolescents, and this association is relatively consistent across different partner types and adolescent contexts. Associations between sexual behavior and depressive symptoms in young adulthood are more dependent on partner factors and adolescent contexts; sexual behavior in young adulthood is associated with fewer depressive symptoms for women who have sex with a single partner and for men whose parents did not strongly disapprove of adolescent sexual behavior. Findings suggest that delaying sexual behavior into young adulthood may have some benefits for mental health, although contextual and relationship factors also play a role.

Although research has increasingly emphasized how adolescent sexual behavior may be associated with aspects of health beyond unwanted pregnancy and sexually transmitted infections, no current theoretical or conceptual model fully explains associations between sexual behavior and multiple facets of health. We provide a conceptual model that explicates possible processes of how adolescent sexual behavior may influence physical, mental, and social health. Next, we review the current literature consistent with this conceptual model, demonstrating that although early sexual behavior can be associated with some negative outcomes, sex may be, on average, a positive experience in late adolescence. Finally, we discuss important future directions for research in these areas, including how individuals' attitudes about and perceptions of sexual behavior influence outcomes of sex.

Sexual behavior is an important aspect of adolescent development with implications for well-being. These chapters highlight important perspectives on studying sexual health from a normative, developmental perspective, such as viewing a range of sexual behaviors as life events; considering potentially positive physical health, mental health, social health, and identity outcomes; examining both intraindividual and interindividual differences in outcomes; recognizing the romantic relationship context of sexual behavior; and understanding how sexual media may impact sexual health outcomes. We suggest new directions for studying sexual health outcomes, such as studying behaviors beyond vaginal sex and condom use, new methodologies such as latent class analysis, sophisticated longitudinal designs, and collection and analysis of dyadic data. We recommend research on populations underrepresented in sexual health research such as late adolescents who do not attend traditional universities and adolescents from ethnic/racial minorities. Finally, we consider future directions for sexuality education and prevention efforts.

Sexual behavior is associated with body image, but the directionality of this association is unclear. This study used longitudinal data from a sample of previously abstinent college students (N = 100, 45% female, 49% European American, 26% Latino American, 25% African American) to test whether satisfaction with appearance changed after first intercourse. Male students were more satisfied with their appearance after first intercourse, whereas female students became slightly less satisfied with their appearance. These findings demonstrate that first intercourse can lead to changes in well-being, even if the transition takes places in late adolescence. In addition, they suggest that gendered cultural expectations regarding sexual behavior are associated with differing psychological outcomes for male and female adolescents. (Contains 2 tables and 1 figure.)

We examined time perspective and self-esteem in adolescents, young adults, middle-aged adults, and older adults. Time perspective was measured with scales that assess relative orientations and relationships among the past, present, and future. Age effects were examined with standard analytic strategies to determine categorical differences between age groups and with new statistical techniques designed to show continuous age patterns. Findings indicated that (1) thinking about the future was greatest for adolescents and young adults and lowest for middle-aged and older adults, and thinking about the present increased across ages; (2) fewer adolescents and middle-aged participants perceived that the time periods were interrelated compared to younger and older adults; and (3) across ages, a greater emphasis towards the past compared to other time periods was associated with lower self-esteem, whereas emphasizing the present and the future jointly was associated with higher self-esteem.

We examined time perspective and self-esteem in adolescents, young adults, middle-aged adults, and older adults. Time perspective was measured with scales that assess relative orientations and relationships among the past, present, and future. Age effects were examined with standard analytic strategies to determine categorical differences between age groups and with new statistical techniques designed to show continuous age patterns. Findings indicated that (1) thinking about the future was greatest for adolescents and young adults and lowest for middle-aged and older adults, and thinking about the present increased across ages; (2) fewer adolescents and middle-aged participants perceived that the time periods were interrelated compared to younger and older adults; and (3) across ages, a greater emphasis towards the past compared to other time periods was associated with lower self-esteem, whereas emphasizing the present and the future jointly was associated with higher self-esteem.

Guided by theoretical (Brooks-Gunn & Paikoff, 1997) and empirical work (Horne & Zimmer-Gembeck, 2005), this cross-sectional study examined whether sexual well-being (sexual self-acceptance, importance of mutual consent, importance of safe sex) was associated with life satisfaction among Mexican adolescents, and whether these associations were moderated by gender, age, and familism. Mexican adolescents (54% girls, 72% middle schoolers, 30% sexually active) completed surveys. Findings indicated that a greater belief in the importance of safe sex was associated with higher levels of life satisfaction. Greater sexual self-acceptance was associated with life satisfaction, and familism moderated this association. This association was stronger among adolescents who reported low familism. This study contributes to the understanding of sexual adolescent well-being and psychological adjustment in Mexico, an understudied cultural context. [ABSTRACT FROM AUTHOR]

To broaden our understanding of romance and sexuality during adolescence in Latin American countries, we used a person-oriented approach (latent class analysis) to examine classes marked by different patterns of romantic and sexual behaviors in Mexican adolescents. We found 5 classes: Inactive (8.53%), Early stage (37.8%), Waiting class (27.5%), Physical (8.4%) and Committed (17.9%); but no group dating class. We also explored how these classes were associated with adolescents' mental health and school performance. Middle school adolescents in the Committed class (high in romantic and sexual behaviors) had the highest level of depressive symptoms. Girls in the Inactive class and boys in the Physical class had the lowest level of symptoms. Adolescents in the Committed class also reported less academic motivation and achievement, whereas adolescents in the Inactive class reported higher motivation. This study expands our knowledge of adolescent romantic and sexual development in Mexico. [ABSTRACT FROM AUTHOR]

Purpose To examine time-varying associations between predictors of recent multiple sexual partners from middle adolescence through young adulthood. Methods We examined whether the odds of multiple partners in the past year were differentially predicted by substance use and depression over time, using data from a nationally representative longitudinal study (N = 11,963, 52.2% female, 18.3% African-American, 11.9% Hispanic, 3.5% Asian, 2.6% other race, M age at Wave I = 16.1 years, SD = 1.8). Data were analyzed using the time-varying effect model, which estimates associations between predictors and an outcome as a function of near-continuous time. Results The proportion of participants having multiple partners increased over time, leveling off at around 30% after age 20. Significant positive associations between substance use and multiple partners were strongest early in adolescence and decreased sharply by around age 18. The significant positive association between depression and sexual behavior weakened with age, remaining significant in young adulthood for women but not men. Conclusions These findings suggest that factors associated with having multiple recent sexual partners change from middle adolescence through young adulthood. The time-varying effect model can be used to identify risk factors that are especially salient at different ages, thus identifying which age periods may hold the greatest promise for intervention. [ABSTRACT FROM AUTHOR]