Mothers' and Fathers' Well-Being in Parenting Across the Arch of Child Development.

Limited research on parental well-being by child age suggests that parents are better off with very young children, despite intense time demands of caring for them. This study uses the American Time Use Survey Well-Being Module (N = 18,124) to assess how parents feel in activities with children of different ages. Results show that parents are worse off with adolescent children relative to young children. Parents report the lowest levels of happiness with adolescents relative to younger children, and mothers report more stress and less meaning with adolescents. Controlling for contextual features of parenting including activity type, solo parenting, and restorative time does not fully account for the adolescent disadvantage in fathers' happiness or mothers' stress. This study highlights adolescence as a particularly difficult stage for parental well-being, and it shows that mothers shoulder stress that fathers do not, even after accounting for differences in the context of their parenting activities.

A Quarter Century of Participation in School-Based Extracurricular Activities: Inequalities by Race, Class, Gender and Age?

Extracurricular activity participation is linked to positive development, but it is also a setting for inequality. Using a quarter century of data from Monitoring the Future (N = 593,979; 51% female; 65% non-Hispanic white; 13% non-Hispanic black; 12% Hispanic; 4% non-Hispanic Asian/Pacific Islander; 7% other race), this article documents patterns and trends in school-based extracurricular participation by race, social class, gender, and age, and their links to academic and substance use outcomes. Findings reveal differences by race and confirm a division by social class that has worsened over time. Further, girls are gaining on boys and surpass them in some types of school-based activities. Participation is linked to better academic outcomes and less substance use, affirming the importance of redressing the inequalities revealed.

Mothering Experiences: How Single Parenthood and Employment Structure the Emotional Valence of Parenting.

Research studies and popular accounts of parenting have documented the joys and strains of raising children. Much of the literature comparing parents with those without children indicates a happiness advantage for those without children, although recent studies have unpacked this general advantage to reveal differences by the dimension of well-being considered and important features in parents' lives and parenting experiences. We use unique data from the 2010, 2012, and 2013 American Time Use Survey to understand emotions in mothering experiences and how these vary by key demographic factors: employment and partnership status. Assessing mothers' emotions in a broad set of parenting activities while controlling for a rich set of person- and activity-level factors, we find that mothering experiences are generally associated with high levels of emotional well-being, although single parenthood is associated with differences in the emotional valence. Single mothers report less happiness and more sadness, stress, and fatigue in parenting than partnered mothers, and these reports are concentrated among those single mothers who are not employed. Employed single mothers are happier and less sad and stressed when parenting than single mothers who are not employed. Contrary to common assumptions about maternal employment, we find overall few negative associations between employment and mothers' feelings regarding time with children, with the exception that employed mothers report more fatigue in parenting than those who are not employed.

Older Sexual Partners and Adolescent Females' Mental Health.

CONTEXT: The physical health detriments associated with adolescent females' having older romantic partners are well documented. However, little is known about the relationship between having an older partner and females' subsequent mental health. METHODS: Two waves of data from 1,440 participants in the National Longitudinal Study of Adolescent Health were analyzed. The sample was restricted to females in grades 7-12 who had not had sex at Wave 1 (1994-1995) and reported at least one romantic relationship by Wave 2 (1996). A lagged dependent variable approach with ordinary least-squares regression measured changes in depression and self-esteem associated with sexual and nonsexual relationships with same-age and older partners. Intimate partner violence was tested as a mediator. RESULTS: Compared with respondents reporting a nonsexual relationship with a same-age partner, those reporting a nonsexual relationship with an older partner, sex with a same-age partner or sex with an older partner experienced greater increases in depression between surveys; mean predicted depression levels at Wave 2 ranged from 7.7 to 9.0 across these groups (possible range, 0-27). Intimate partner violence explained one-third of the difference between those who had had sex and those who had not had sex with same-age partners. Fewer associations were found for self-esteem, and differences between groups were small. CONCLUSIONS: Health correlates of adolescent sexual behavior go beyond physical health outcomes. Future research should identify mechanisms through which relationships, especially those with older partners, are associated with declines in mental health.

Variation in Associations Between Family Dinners and Adolescent Well-Being.

Empirical evidence and conventional wisdom suggest that family dinners are associated with positive outcomes for youth. Recent research using fixed-effects models as a more stringent test of causality suggests a more limited role of family meals in protecting children from risk. Estimates of average effects, however, may mask important variation in the link between family meals and well-being; in particular, family meals may be more or less helpful based on the quality of family relationships. Using 2 waves of the National Longitudinal Study of Adolescent Health (N = 17,977), this study extended recent work to find that family dinners have little benefit when parent-child relationships are weak but contribute to fewer depressive symptoms and less delinquency among adolescents when family relationships are strong. The findings highlight the importance of attending to variation when assessing what helps and what hurts in families.

Integrating the Demographic and Health Surveys, IPUMS-I, and TerraPopulus to Explore Mortality and Health Outcomes at the District Level in Ghana, Malawi, and Tanzania.

In this paper, we first show how the Demographic and Health Surveys (DHS) can be integrated with other data sources to expand the types of variables available for analysis of population and health outcomes. Second, we demonstrate one particular example of such integration by modelling the social, physical, and built environment determinants of health outcomes at the district level in Ghana, Malawi, and Tanzania. To do so, we created district-level measures of a number of variables from the DHS, and then merged them with district-level data from the IPUMS, an environmental data set called TerraPopulus, and other sources. We find that it is feasible to combine the DHS with other data sources, and that many health and environment indicators are heterogeneous within countries, justifying further analysis at low levels of geography and suggesting benefits to using such techniques to design fine-grained programmatic interventions.

Ascorbic acid reduction of compound I of mammalian catalases proceeds via specific binding to the NADPH binding pocket.

Mammalian (Clade 3) catalases utilize NADPH as a protective cofactor to prevent one-electron reduction of the central reactive intermediate Compound I (Cpd I) to the catalytically inactive Compound II (Cpd II) species by re-reduction of Cpd I to the enzyme's resting state (ferricatalase). It has long been known that ascorbate/ascorbic acid is capable of reducing Cpd I of NADPH-binding catalases to Cpd II, but the mode of this one-electron reduction had hitherto not been explored. We here demonstrate that ascorbate-mediated reduction of Cpd I, generated by addition of peroxoacetic acid to NADPH-free bovine liver catalase (BLC), requires specific binding of the ascorbate anion to the NADPH binding pocket. Ascorbate-mediated Cpd II formation was found to be suppressed by added NADPH in a concentration-dependent manner, for the achievement of complete suppression at a stoichiometric 1:1 NADPH:heme concentration ratio. Cpd I → Cpd II reduction by ascorbate was similarly inhibited by addition of NADH, NADP(+), thio-NADP(+), or NAD(+), though with 0.5-, 0.1-, 0.1-, and 0.01-fold reduced efficiencies, respectively, in agreement with the relative binding affinities of these dinucleotides. Unexpected was the observation that although Cpd II formation is not observed in the presence of NADP(+), the decay of Cpd I is slightly accelerated by ascorbate rather than retarded, leading to direct regeneration of ferricatalase. The experimental findings are supported by molecular mechanics docking computations, which show a similar binding of NADPH, NADP(+), and NADH, but not NAD(+), as found in the X-ray structure of NADPH-loaded human erythrocyte catalase. The computations suggest that two ascorbate molecules may occupy the empty NADPH pocket, preferably binding to the adenine binding site. The biological relevance of these findings is discussed.

ASSESSING CAUSALITY AND PERSISTENCE IN ASSOCIATIONS BETWEEN FAMILY DINNERS AND ADOLESCENT WELL-BEING.

Adolescents who share meals with their parents score better on a range of well-being indicators. Using three waves of the National Longitudinal Survey of Adolescent Health (N = 17,977), we assessed the causal nature of these associations and the extent to which they persist into adulthood. We examined links between family dinners and adolescent mental health, substance use, and delinquency at wave 1, accounting for detailed measures of the family environment to test whether family meals simply proxy for other family processes. As a more stringent test of causality, we estimated fixed effects models from waves 1 and 2, and we used wave 3 to explore persistence in the influence of family dinners. Associations between family dinners and adolescent well-being remained significant, net of controls, and some held up to stricter tests of causality. Beyond indirect benefits via earlier well-being, however, family dinners associations did not persist into adulthood.

Creating Statistically Literate Global Citizens: The Use of IPUMS-International Integrated Census Microdata in Teaching.

Census microdata are ideal for developing statistical literacy of university students. Access, particularly to internationally comparable microdata, has been a significant obstacle. The IPUMS-International project offers a uniform solution to providing access for policy analysts, researchers, and students to integrated microdata and metadata, while protecting statistical confidentiality. Eighty-five official statistical agencies have endorsed IPUMS-I dissemination principles and entrusted microdata for 249 censuses to the project. From June 2010, 159 integrated samples, representing 55 countries and totaling over 325 million person records, are available at no cost to researchers and their students. The database is being expanded with the addition of samples for 5-10 countries per year as well as samples for the 2010 round of censuses. This paper illustrates two approaches to using IPUMS-I census microdata in the university curriculum to promote statistical literacy among undergraduates.

Are both parents always better than one? Parental conflict and young adult well-being.

Using data from three waves of the National Survey of Families and Households (N=1,963), we examine associations between adolescent family experiences and young adult well-being across a range of indicators, including schooling, substance use, and family-related transitions. We compare children living with both biological parents, but whose parents differ in how often they argue, to children in stepfather and single-mother families, and we assess the extent to which differences can be understood in terms of family income and parenting practices. Findings suggest that parental conflict is associated with children's poorer academic achievement, increased substance use, and early family formation and dissolution. Living in single mother and stepfather families tend to be more strongly associated with our indicators of well-being, although differences between these family types and living with high conflict continuously married parents are often statistically indistinguishable. Income and parenting largely do not account for associations between adolescent family type and later life outcomes. We conclude that while children do better, on average, living with two biological married parents, the advantages of two-parent families are not shared equally by all.

Young Adult Relationship Values at the Intersection of Gender and Sexuality.

Recent decades have brought significant social changes in the industrialized West that may influence young adults' attitudes about intimate relationships, including changes in gender expectations and behaviors and changes in sexual attitudes and practices. We used data from the National Longitudinal Survey of Adolescent Health (N=14,121) to compare men to women, and sexual minorities to heterosexuals, on ratings of the importance of love, faithfulness, commitment, financial security, and racial homogamy for successful relationships. We found that nearly all young adults adhere to dominant relationship values inherent in the romantic love ideology; however, we found modest but significant differences by gender and sexual identity in relationship values. Significant interactions demonstrated that gender and sexual identity intersect to uniquely influence relationship views.

Romantic Relationships from Adolescence to Young Adulthood: Evidence from the National Longitudinal Study of Adolescent Health.

Theories on romantic relationship development posit a progression of involvement and intensity with age, relationship duration, and experience in romantic relationships. Using the National Longitudinal Study of Adolescent Health, this study tests these propositions by considering relationship type and patterns of relationships over the course of adolescence and their influence on relationship formation in young adulthood. Findings indicate that relationships become more exclusive, dyadic, of longer duration, and more emotionally and sexually intimate over the course of adolescence. Moreover, relationship experience in adolescence is associated with an increased likelihood of cohabitation and marriage in young adulthood. These findings indicate that instead of being trivial or fleeting, adolescent romantic relationships are an integral part of the social scaffolding on which young adult romantic relationships rest.

Intimate relationship development during the transition to adulthood: differences by social class.

This article examines differences in young adults' intimate relationships by social class. Lower-class adolescents are more likely to engage in intimate-relationship practices such as cohabitation, early marriage, and sexual activity that may lead to further economic and educational deprivation. Such adolescents have limited access to the special opportunities of emerging adulthood. Social class indirectly shapes the relationships of groups such as prisoners, military personnel, and sexual minorities whose memberships are highly class graded and who are subject to state-controlled relationship constraints. More research is needed on how laws and institutions constrain even the most intimate features of young lives.

The potential of comprehensive sex education in China: findings from suburban Shanghai.

CONTEXT: More and more Chinese adolescents are engaging in premarital sexual activity. As a result, the numbers of unplanned pregnancies and sexually transmitted infections (STIs) among Chinese young adults have increased markedly. METHODS: A comprehensive sex education program, including information on abstinence, contraception and healthy sexual behaviors, was carried out in a suburb of Shanghai. The program used six methods for providing information and services to unmarried 15-24-year-olds over a period of 20 months. Sexual behavior surveys were conducted among intervention participants and among controls in a comparable town, who did not receive a similar intervention; chi-square tests and logistic regression were used to compare the results. RESULTS: Participation in the intervention was not associated with delayed sexual initiation, but was associated with reduced odds that youth coerced a partner into having sex (odds ratio, 0.3) and with increased odds of contraceptive use (6.2) and condom use (13.3) during the intervention period. The greater the level of participation, the larger the protective effects. Furthermore, the proportion of youth reporting pregnancy involvement during the intervention period was significantly lower in the intervention group than among controls (19% vs. 26%). CONCLUSION: Comprehensive, community-based interventions may be effective in reaching large numbers of Chinese youth and in promoting sexual negotiation, contraceptive use, and pregnancy and STI/HIV prevention.

Overweight, obesity, and health-related quality of life among adolescents: the National Longitudinal Study of Adolescent Health.

OBJECTIVE: Childhood and adolescent overweight and obesity have increased substantially in the past 2 decades, raising concerns about the physical and psychosocial consequences of childhood obesity. We investigated the association between obesity and health-related quality of life in a nationally representative sample of adolescents. METHODS: A cross-sectional analysis was conducted using the 1996 National Longitudinal Study of Adolescent Health, a nationally representative sample of adolescents in grades 7 to 12 during the 1994-1995 school year, and 4743 adolescents with direct measures of height and weight. Using Centers for Disease Control and Prevention growth charts to determine percentiles, we used 5 body mass categories. Underweight was at or below the 5th percentile, normal BMI was between the 5th and 85th percentiles, at risk for overweight was between the 85th and 95th percentiles, overweight was between the 95th and 97th percentiles + 2 BMI units, and obese was at or above the 97th percentile + 2 BMI units. Four dimensions of health-related quality of life were measured: general health (self-reported general health), physical health (absence or presence of functional limitations and illness symptoms), emotional health (the Center for Epidemiologic Studies Depression Scale and Rosenberg's self-esteem scale), and a school and social functioning scale. RESULTS: We found a statistically significant relationship between BMI and general and physical health but not psychosocial outcomes. Adolescents who were overweight had significantly worse self-reported health (odds ratio [OR]: 2.17; 95% confidence interval [CI]: 1.34-3.51), as did obese adolescents (OR: 4.49; 95% CI: 2.87-7.03). Overweight (OR: 1.81; 95% CI: 1.22-2.68) and obese (OR: 1.91; 95% CI: 1.24-1.95) adolescents were also more likely to have a functional limitation. Only among the youngest adolescents (ages 12-14) did we find a significant deleterious impact of overweight and obesity on depression, self-esteem, and school/social functioning. CONCLUSIONS: Using a nationally representative sample, we found that obesity in adolescence is linked with poor physical quality of life. However, in the general population, adolescents with above normal body mass did not report poorer emotional, school, or social functioning.