BACKGROUND: Transitioning to adulthood often involves achieving independence from the parental home. We assessed whether the likelihood of leaving the parental home, cohabitation, and marriage was similar between patients who experienced a hematologic malignancy at a young age and their peers.
METHODS: We identified 11,575 patients diagnosed with a hematologic malignancy under the age of 20 years between 1971 and 2011 in Denmark, Finland, and Sweden, 57,727 country-, age-, and sex-matched population comparisons and 11,803 sibling comparisons and obtained annual information on family and marital status by linking to the statistical institute databases. Hazard ratios (HR) for leaving the parental home, cohabitation and marriage were estimated using Cox proportional hazards modeling.
RESULTS: Young adults with a history of a hematologic malignancy were slightly less likely to leave the parental home (HR 0.89; 95% confidence interval [CI] 0.86-0.92; HR 0.87 [95% CI 0.82-0.92]), cohabit with a nonmarital partner (HR 0.83 [95%CI 0.78-0.87]; HR 0.84 [95% CI 0.77-0.92]) and be married (HR 0.87 [95% CI 0.82-0.91]; HR 0.86 [95% CI 0.79-0.93]), compared with population comparisons and siblings, respectively.
CONCLUSIONS: Our findings provide reassurance that young adults with a history of a hematologic malignancy show only a slight decrease in their likelihood of gaining independence from their childhood family and forming close interpersonal relationships compared to peers. While most patients are coping well in the long term, integrating structured psychosocial support into long-term follow-up is recommended to facilitate a timely and adequate transition into adulthood.

This study investigates partnership changes and childbearing among immigrants and their descendants in the UK, France, and Germany. Our analysis of longitudinal data shows, first, significant diversity in family trajectories among immigrants and their descendants in Europe. Immigrants from other European countries and their descendants tend to cohabit prior to marriage, and their fertility in unions is often similar to that of the native population. In contrast, South Asians and Turkish populations exhibit marriage-centred family behaviour with elevated third-birth rates. Individuals of sub-Saharan African or Caribbean origin display higher rates of non-marital family transitions. Second, we observe some changes in partnership and childbearing patterns across migrant generations; these are stronger for fertility than for partnership patterns. Third, migration background is particularly associated with partnership patterns, whereas the destination country context influences childbearing patterns. We expect some patterns to persist across future migrant generations (e.g. preference for marriage vs cohabitation), whereas others are likely to vanish (e.g. large families).

A well-documented trend in family demography is that young adults from disadvantaged backgrounds tend to enter their first partnership earlier and forego marriage more often than their advantaged counterparts. Yet, limited research has explored whether there is also an association between parental background and expectations for partnership formation, which are considered important precursors of behaviours. Further, few studies have explored the potential mechanisms mediating these differences. This paper uses data from the British Household Panel Survey and Understanding Society to analyse the relationships between parental socioeconomic status and young Britons\' expectations for marriage, cohabitation, and attitudes towards ideal age at marriage. Using the KHB decomposition as a mediation method, we verify whether these relationships are explained by two mechanisms measured during the young adults\' adolescence: family structure socialisation and academic socialisation. We find that marriage expectations are socially stratified in the UK. Those from the least advantaged backgrounds have significantly lower expectations for marriage than the most advantaged, but this difference does not hold for cohabitation. Those from the least advantaged backgrounds are also more uncertain about their ideal age at marriage. Academic socialisation mediates these relationships to a limited extent. Family structure socialisation mediates a greater percentage, especially living with a single parent, rather than married parents, during adolescence.

Aging is associated with chronic oxidative stress, which contributes to the deterioration of the immune system, increasing morbidity and mortality. A positive social environment permits health maintenance and a slower rate of aging. Improvements in immune function and oxidative stress were shown in peritoneal leukocytes and organs of old mice and adult prematurely aging mice (PAM) after cohabitation with adults or exceptional non-prematurely aging mice (ENPAM), respectively, for 2 months, but adults and ENPAM experienced deterioration. This was solved by shortening the cohabitation time to 15 min/day for 2 months, where old mice and PAM maintained immune and redox state improvements in their peritoneal leukocytes, as well as a greater longevity, and adults and ENPAM did not show deterioration. However, it is unknown whether the positive effects of this short cohabitation are reflected in the immunity and redox state of the organs. The aim of the present study was to test whether a cohabitation of 15 min/day for 2 months maintains these positive effects in the organs of retired breeder female old mice and PAM and avoids the negative ones in adults and ENPAM. After cohabitation the animals were sacrificed, and the thymus and spleen were extracted to evaluate the immune function. The oxidative state was also analyzed in the spleen, liver, heart, lung, and kidney. The results show that after cohabitation, old mice and PAM improved their immunity and redox state, and adults and ENPAM showed no deterioration. This cohabitation can be suggested to improve health and slow down aging.

Growing rates of childhood obesity globally create concern for individuals\' health outcomes and demands on health systems. While many policy approaches focus on macro-level interventions, we examine how the type of stability of a family structure might provide opportunities for policy interventions at the micro level. We examine the association between family structure trajectories and childhood overweight and obesity across three Anglophone countries using an expanded set of eight family structure categories that capture biological relationships and instability, along with potential explanatory variables that might vary across family trajectories and provide opportunities for intervention, including access to resources, family stressors, family structure selectivity factors, and obesogenic correlates. We use three datasets that are representative of children born around the year 2000 and aged 11 years old in Australia (n = 3329), the United Kingdom (n = 11,542), and the United States (n = 8837) and nested multivariate multinomial logistic regression models. Our analyses find stronger relationships between child overweight and obesity and family structure trajectories than between child obesity and obesogenic factors. Children in all three countries are sensitive to living with cohabiting parents, although in Australia, this is limited to children whose parents have been cohabiting since before their birth. In the UK and US, parents starting their cohabitation after the child\'s birth are more likely to have children who experience obesity. Despite a few differences across cross-cultural contexts, most of the relationship between family structures and child overweight or obesity is connected to differences in families\' access to resources and by the types of parents who enter into these family structures. These findings suggest policy interventions at the family level that focus on potential parents\' education and career prospects and on income support rather than interventions like marriage incentives.

The paper studies the association between partners\' relative incomes and union dissolution among couples in France. With the increase in dual-earner couples and women\'s educational level, couples in which women earn more than their partners are structurally becoming more widespread. Because female breadwinning challenges long-lived social norms regarding traditional gender roles, scholars have theorized a higher risk of union dissolution among female-breadwinner couples compared to couples in other income arrangements. We estimate the risk of union dissolution using regression analyses on unique longitudinal data from French administrative sources containing an unconventionally high number of couples (4% of the population) and separation events (more than 100,000), as well as precise and reliable income measurement. Female-breadwinner couples face a higher risk of union dissolution compared to other couple types. This result is robust to various definitions of female breadwinning and controls for partners\' employment status. Contrary to recent research on other countries, we find no sign of a fading effect among younger cohorts. However, among younger, cohabiting couples and couples in registered partnerships the risk of union dissolution is lowest when both partners are employed and provide a similar share of the total couple\'s income, suggesting the emergence of a new profile of stable couples. The female-breadwinner penalty in union dissolution is in place; also in France, it holds among married and cohabiting couples and registered partnerships, across all birth cohorts and levels of household income.

OBJECTIVE: Few studies investigated parenthood as a predictor of eating pathology in young adulthood. We studied the association between parenthood, in the first year after becoming a parent and beyond, and eating pathology. Furthermore, we examined whether moving in together with a partner affected this association.
METHODS: This study used data of four measurement waves from TRAILS (Tracking Adolescents\' Individual Lives Survey), a Dutch community cohort study (N = 2229) from preadolescence into young adulthood. The Eating Disorder Diagnostic Scale (EDDS), a measure to assess eating pathology, was assessed at ages 22, 26, and 29. Risk for eating disorder was assessed at age 19. Pregnant participants were excluded.
RESULTS: Parenthood was not associated with an increase of eating pathology in the first year after becoming a parent and beyond. Instead, parents were more likely to report being free from eating pathology symptoms compared to childless individuals (OR 2.07, 95% CI: 1.11-3.84). Among those who reported experiencing at least one eating problem, parenthood was not associated with the number of eating problems. Moving in together with a partner did not alter the association between parenthood and eating problems and neither did this association differ between males and females.
CONCLUSIONS: Parenthood in young adulthood was associated with a decreased risk of having eating pathology.
UNASSIGNED: In this longitudinal study among young adults, parenthood was not associated with the development of eating pathology.

Developments over time in the prevalence of marriage and cohabitation formation has long received much interest, but less is known about more recent developments for different population subgroups in European countries. This applies as well to Sweden, a country considered a forerunner in family-demographic change. In contrast, much attention has been paid to the falling birth rates during the 2010s, and explanations that focus on the role of increasing uncertainties. In the Swedish case, the fertility decline has been documented across all main socio-demographic subgroups. The objective of this study is to examine whether the same situation holds for first marriage and cohabitation formation during the 2010s and the exceptional years of the Covid-19 pandemic. Based on Swedish population registers, including with new cohabitation data, we present annual indices of first marriage formation (1991-2022) and cohabitation formation (2012-2022) across a number of socio-demographic strata. We demonstrate a continuous decline in first marriage formation since the early 2010s with an additional sharp dip during the pandemic and a post-pandemic recovery. In contrast, there was a remarkable stability in cohabitation formation during 2012-2022. Although socio-demographic groups differ in their overall levels of marriage and cohabitation formation, the recent trends are strikingly similar across groups. Cohabiting couples, across population subgroups, have become less inclined to transition their union status to a more committed level, as manifested by marriage or parenthood. This occurred in spite of a positive economic climate in the 2010s and stable family policies, indicating that other forces are at play.

UNASSIGNED: Empirically examine whether different economic theories of marriage formation predict the transition from cohabitation to marriage differently across social classes.
UNASSIGNED: Less-educated individuals marry their cohabiting partners at lower rates than their college-educated peers, but the reasons for this are unknown. Few studies have examined the intersection of social class and couple-level economic resources to understand if the potentially gendered economic determinants of marriage vary according to a couple\'s social location.
UNASSIGNED: Couple-month data come from the 2014 Survey of Income and Program Participation, including 1,879 cohabiting couples, 478 of whom transition to marriage. Logistic regression is used to test whether the marriage bar, gender specialization, gendered institutions, or gender revolution framework best predicts the likelihood of marrying.
UNASSIGNED: Joint indicators of the marriage bar and the gendered economic organization of couples both predict marriage, but the specific gendered organization varies by the couple\'s level of education. Among couples where neither partner has a college degree, male-breadwinning couples are most likely to marry; dual-earning couples are most likely to marry among more-educated couples.
UNASSIGNED: Although college-educated couples seem to have shifted to a more egalitarian model of marriage, as predicted by the gender revolution framework, the marriages of the less-educated are still characterized by traditional arrangements, in line with the idea that marriage is a gendered institution. By showing that different theories predict marriage depending on the couple\'s social position, these findings provide groundwork to explore why the less educated are increasingly less likely to marry their cohabiting partners.

OBJECTIVE: In 2020, one million women aged < 55 years were diagnosed with breast cancer globally. The impact of breast cancer and its treatments on these women\'s ability to work and need for social benefits may differ by social characteristics. We evaluated social benefit use following breast cancer by education and cohabitation.
METHODS: We conducted a nationwide population-based cohort study, including women aged 18-55 years diagnosed with stage I-III breast cancer in Denmark during 2002-2011. Statistics Denmark provided information on cohabitation, education, and social benefit use from 1 year pre-diagnosis to 10 years post-diagnosis. We calculated weekly proportions of self-support, unemployment, disability pension, flexi jobs, and sick leave according to education and cohabitation.
RESULTS: Of 5345 women, 81.8% were self-supporting, 4.5% received disability pensions, 1.6% had flexi jobs, 3.6% were on sick leave, and 5.5% were unemployed 1 year pre-diagnosis. Ten years post-diagnosis, the proportions were 69.0%, 13.0%, 10.5%, 3.4%, and 2.0% of 3663 survivors. Disability pensions and flexi jobs increased from 12.1 to 26.4% and 2.8 to 13.5% in women with short education, from 4.1 to 12.8% and 1.8 to 12.2% in women with medium education, and from 0.8 to 6.0% and 0.9 to 6.9% in longer educated. Disability pensions increased more in women living alone (7.8 to 19.9%), than in cohabiting women (3.6 to 11.3%).
CONCLUSIONS: Use of social benefits reflecting lost ability to work was highest in less educated women and in women living alone.
CONCLUSIONS: Awareness of these groups is crucial when tailoring efforts to support work participation in cancer survivors.