Both Partnership History and Current Relationship Quality are Associated With Life Satisfaction in Old Age.

Romantic relationships significantly impact physical and mental wellbeing. While both partnership history and current relationship quality influence wellbeing in later life, they are seldom investigated together. This study examines the long-term effects of partnership history on wellbeing, exploring whether current relationship quality can mitigate the impact of past experiences.

The role of mating effort and co-residence history in step-grandparental investment.

The prevalence of divorce in both parental and grandparental generations has led to a rise in the number of children who now have families that include both biological and step-grandparents. Despite the thorough examination of biological grandparents' contributions in the recent literature, there remains a scarcity of studies focusing on the investment of step-grandparents. Using population-based data from a sample of 2494 parents in Germany, we assessed grandparental investment through financial support and assistance with childcare of grandparents ( = 4238) and step-grandparents ( = 486).

Changes in Resources and Volunteering: A Longitudinal Study of Active Engagement Among Older Europeans.

Background And Objectives: Volunteering is an important dimension of successful aging. Although prior studies have found that personal resources such as health and financial situations are associated with volunteering, there is a lack of research exploring the relationship between resource changes and volunteering. Here, we investigated whether changes in individuals' resources were associated with volunteer engagement among older Europeans.

Is Transition to Retirement Associated With Volunteering? Longitudinal Evidence from Europe.

Studies have shown that retired older adults are more likely to volunteer than their working counterparts. However, whether the transition to retirement is associated with increased volunteering frequency and whether this varies according to material and time resources of participants is unclear. We used four waves of data from the longitudinal Survey of Health, Ageing and Retirement in Europe, collected between 2011-2018 across 19 countries ( = 12,400 person-observations from 6200 individuals over 50).

The Effect of Informal Caregiving on Depression: An Asymmetric Panel Fixed-Effects Analysis of In-Home and Out-Of-Home Caregivers Across Europe.

Previous research has shown that providing intensive informal care can have a negative effect on an individual's mental health. However, few studies have been able to draw a precise comparison between the experiences of in-home and out-of-home caregivers. This study used data from 16 countries collected from 2011-2019 as part of the Survey of Health, Ageing and Retirement in Europe (SHARE) to conduct asymmetric panel fixed-effects models that examined within-person variation in depression scores after a respondent started providing daily or almost daily personal care either inside or outside of their home.

Investment by maternal grandmother buffers children against the impacts of adverse early life experiences.

Exogenous shocks during sensitive periods of development can have long-lasting effects on adult phenotypes including behavior, survival and reproduction. Cooperative breeding, such as grandparental care in humans and some other mammal species, is believed to have evolved partly in order to cope with challenging environments. Nevertheless, studies addressing whether grandparental investment can buffer the development of grandchildren from multiple adversities early in life are few and have provided mixed results, perhaps owing to difficulties drawing causal inferences from non-experimental data.

Step-Gap in Upward Support: The Role of Biological Relatedness and Childhood Co-residence Duration.

Objectives: Although prior research has detected a step-gap in intergenerational relationships in various aspects, there is a lack of studies examining adult children's support toward their biological parents and stepparents. We investigated (i) whether adult children provide more support to their biological parents than stepparents and (ii) whether the childhood co-residence duration is associated with the support given to stepparents.

Methods: The data were drawn from the German Family Panel (pairfam).

Maternal psychiatric and somatic illness, and the risk of unintentional injuries in children: variation by type of maternal illness, type of injury and child age.

Background: Maternal mental illness appears to increase the risk of unintentional childhood injuries, which are a common cause of morbidity and mortality in early childhood. However, little is known about the variations in this association by type of injury and child's age, and studies on the effects of maternal somatic illness on children's injury risk are scarce.

Methods: We used Finnish total population register data from 2000 to 2017 to link 1 369 325 children to their biological mothers and followed them for maternal illness and childhood injuries until the children's sixth birthday.

Parental Investment by Birth Fathers and Stepfathers : Roles of Mating Effort and Childhood Co-residence Duration.

This study investigates the determinants of paternal investment by birth fathers and stepfathers. Inclusive fitness theory predicts higher parental investment in birth children than stepchildren, and this has consistently been found in previous studies. Here we investigate whether paternal investment varies with childhood co-residence duration and differs between stepfathers and divorced birth fathers by comparing the investment of (1) stepfathers, (2) birth fathers who are separated from the child's mother, and (3) birth fathers who still are in a relationship with her.

Grandparental co-residence and grandchild survival: the role of resource competition in a pre-industrial population.

Although grandparents are and have been important alloparents to their grandchildren, they are not necessarily only beneficial but can also compete with grandchildren over limited resources. Competition over parental care or other resources may exist especially if grandparents live in the same household with grandchildren and it can be dependent on grandchild age. By utilizing demographic data collected from historic population registers in Finland between 1761 and 1895 (study sample = 4041) we investigate whether grandparents living in the same household with grandchildren are detrimental or beneficial for grandchild survival.

Differential grandparental investment when maternal grandmothers are living versus deceased.

Grandparents can increase their inclusive fitness by investing time and resources in their grandchildren. However, not all grandparents make such investments equally, and between-grandparent differences in this regard can be predicted based on paternity uncertainty, lineage and grandparents' sex. Using population-based data for English and Welsh adolescents ( = 1430), we examined whether the death of the most important grandparent (in terms of investment), the maternal grandmother (MGM), changes relative support for existing hypotheses predicting differential grandparental-investment patterns.

Grandparenting, health, and well-being: a systematic literature review.

Whether grandparenting is associated with improved health or well-being among older adults is a salient question in present-day aging societies. This systematic review compiles studies that consider the health or well-being outcomes of grandparenting, concerning (1) custodial grandparent families, where grandparents are raising grandchildren without parental presence; (2) three-generation households, where grandparents are living with adult children and grandchildren; and (3) non-coresiding grandparents, who are involved in the lives of their grandchildren. Review was based on literature searches conducted in September 2019 via Web of Science, PubMed, PsycINFO, and Ebsco.

The interplay of grandparental investment according to the survival status of other grandparent types.

Inclusive fitness theory predicts that grandparental investment in grandchildren aims to maximise their inclusive fitness. Owing to an increasing overlap between successive generations in modern affluent populations, the importance of grandparental investment remains high. Despite the growing literature, there is limited knowledge regarding how the survival status of different grandparent types influences each other's investment in grandchildren.

Matrilateral bias of grandparental investment in grandchildren persists despite the grandchildren's adverse early life experiences.

Evolutionary theory predicts a downward flow of investment from older to younger generations, representing individual efforts to maximize inclusive fitness. Maternal grandparents and maternal grandmothers (MGMs) in particular consistently show the highest levels of investment (e.g.

Predictors of Social Media Use in Two Family Generations.

Older adults have recently begun to adopt social media in increasing numbers. Even so, little is known about the factors influencing older adults' social media adoption. Here, we identify factors that predict the use of social media among older adults (aged 68-73) and compare them to those of their adult children (aged 19-56) using population-based data from Finland.

Does Transition to Retirement Promote Grandchild Care? Evidence From Europe.

Evolutionary theory posits that grandparents can increase their inclusive fitness by investing in their grandchildren. This study explored whether the transition to retirement affected the amount of grandchild care that European grandparents provided to their descendants. Data from five waves of the longitudinal Survey of Health, Aging, and Retirement in Europe collected between 2004 and 2015 from 15 countries were used.

Does Parental Investment Shape Adult Children's Fertility Intentions? Findings From a German Family Panel.

Parents can play an important role in the childbearing plans of adult children. However, studies testing whether changes in parental investment are associated with subsequent changes in fertility intentions over time are lacking. We investigated whether parental investment, measured as contact frequency, emotional closeness, financial support, and childcare, is associated with adult children's intentions to have a first and a second, or subsequent, child within the next 2 years.

Grandmaternal investment and early childhood injury: the role of X-chromosomal relatedness.

Evolutionary theory posits that grandmothers can increase their inclusive fitness by investing time and resources in their grandchildren. According on the X-linked grandmother hypothesis, the asymmetric inheritance of X-chromosomes should be responsible for the biased effect of the investment by maternal and paternal grandmothers towards granddaughters and grandsons. The British Millennium Cohort Study (n=4445 children) was used to investigate the association between grandmaternal childcare and children's injuries between the ages of 9 months and 3 years.

Short-term reciprocity between adult children and parents: A within-person investigation of longitudinal data.

Although reciprocity of intergenerational support has been widely considered in family studies, empirical investigations utilizing panel data are still rather scarce. This study used data from four waves of the German Family Panel (pairfam), which were collected in two-year intervals between 2009 and 2016. We examined whether the frequency of received support from parents previously is associated with the frequency of provided support to parents later.

Grandparental Childcare for Biological, Adopted, and Step-Offspring: Findings From Cross-National Surveys.

Based on kin selection theory, amounts of grandparental investment should reflect the probability to share common genes with offspring. Adoption may represent a special case, however, yet grandparental investment in adopted children has previously been both theoretically misconstrued and little investigated. Here, we study for the first time how grandparental childcare provision is distributed between biological, adopted, and step-offspring.

Transition to Grandparenthood and Subjective Well-Being in Older Europeans: A Within-Person Investigation Using Longitudinal Data.

The transition to grandparenthood, that is the birth of the first grandchild, is often assumed to increase the subjective well-being of older adults; however, prior studies are scarce and have provided mixed results. Investigation of the associations between grandparenthood and subjective well-being, measured by self-rated life satisfaction, quality of life scores, and depressive symptoms, used the longitudinal Survey of Health, Ageing and Retirement in Europe from 13 countries, including follow-up waves between 2006 and 2015 ( = 64,940 person-observations from 38,456 unique persons of whom 18,207 had two or more measurement times). Both between-person and within-person (or fixed-effect) regression models were executed, where between-person associations represent results across individuals, that is, between grandparents and non-grandparents; within-person associations represent an individual's variation over time, that is, they consider whether the transition to grandparenthood increases or decreases subjective well-being.

Grandparental childcare, health and well-being in Europe: A within-individual investigation of longitudinal data.

Previous studies suggest grandparental childcare is associated with improved health and well-being of grandparents but limited information on the causal nature of this association exists. Here, we use the longitudinal Survey of Health, Ageing and Retirement in Europe (SHARE) of people aged 50 and above across 11 countries including follow-up waves between 2004 and 2015 (n = 41,713 person-observations from 24,787 unique persons of whom 11,102 had two or more measurement times). Between-person and within-person (or fixed-effect) regressions were applied, where between-person models show associations across participants and within-person models focus on each participant's variation over time.

Integration involves a trade-off between fertility and status for World War II evacuees.

Understanding how refugees integrate into host societies has broad implications for researchers interested in intergroup conflict and for governments concerned with promoting social cohesion. Using detailed records tracking the movements and life histories of Finnish evacuees during World War II, we find that evacuees who intermarry are more likely to be educated, work in professional occupations, marry someone higher in social status and remain in the host community. Evacuees who intermarry before the war have fewer children, whereas those who marry into their host community after the war have more children.

Multigenerational Effects on Children's Cognitive and Socioemotional Outcomes: A Within-Child Investigation.

Associations between grandparental investment and child outcomes were investigated using three waves of a longitudinal British Millennium Cohort Study that included children between the ages of 9 months and 5 years (n = 24,614 person-observations from 13,744 children). Grandparental investment was measured by parent-grandparent contact frequency and grandparental financial support. Child cognitive development was measured using the British Ability Scale and socioemotional outcomes using the Strength and Difficulties Questionnaire.