Fertility histories and chronic conditions later in life in Europe

The contributions of fertility during adolescence to disability across the life-course: hypothesized causal pathways, research gaps, and future directions

CONTEXT

Robust associations have been identified between fertility during adolescence and the disablement process, including pathologies, impairments, functional limitations and disability. Limited theoretical or empirical research considers how and why such relationships exist generally or with the individual associated components of disablement.

OBJECTIVE

To consolidate and critically evaluate literature to describe testable, theory-based hypotheses to guide future research on the mechanisms by which fertility during adolescence contributes to disablement.

METHODS

Targeted literature review of research from diverse global settings contextualised in two well-accepted theoretical frameworks in life-course epidemiology: the cumulative risk model and the critical period approach.

RESULTS

Five hypothesised causal pathways linking adolescent fertility to disablement in later life are described: 1) Causal relationship initiated by fertility during adolescence; 2) Common cause(s) for both, such as adverse childhood experiences; 3) Contributing cause(s) to adolescent fertility; 4) Interaction between adolescent fertility and other risk factors; and 5) Critical period effects unique to adolescence. Most research on the topic is on pathologies versus functional limitations and disability.

CONCLUSION

We highlight promising research avenues to inform future research and interventions on adolescent fertility and the disablement process. This work provides theoretical clarity, identifies research gaps, and offers hypotheses-testing opportunities for future research.

Fertility behaviors and mid-late-life health status in China: From a life-course perspective

Despite extensive research on the impact of fertility behaviors on mid-late-life health, conclusions remain inconsistent, and understanding is limited regarding the role of fertility-correlated life events in this causality. This study uses the 2018 wave and life-history information of the China Health and Retirement Longitudinal Study (CHARLS) dataset to explore how the number of children born (NCB) and age at first birth (AFB) influence later-life health. It also examines the effects of early-life educational attainment and mid-late-life caregiving on later-life health from a life-course perspective. Health measures include the Health Deficit Index (HDI), Activities of Daily Living (ADL), and Mini-Mental State Examination (MMSE). Results from the instrumental variables (IV) approach indicate that higher NCB predicts worse health, while later AFB predicts better later-life health. These findings remain robust with different measures of fertility behaviors, and in models that control for cohort and community fixed-effects. However, introducing education variables could disrupt the causality between fertility behaviors and later-life health, but not with caregiving variables. This suggests a potential "horse race" effect between education and fertility behaviors, both of which significantly influence later-life health. Therefore, understanding this causality and formulating policy for an aging society from a life-course perspective is essential.

Less Is (Often) More: Number of Children and Health Among Older Adults in 24 Countries

OBJECTIVES

Previous evidence about the impact of parenthood on health for older adults is mixed, perhaps due to variation in number of children and context. Higher numbers of children could lead to support or strain, depending on individual and country contexts. Yet, no studies currently exist that examine associations between the number of children and several health indicators among older adults across multiple global regions.

METHODS

We analyze cross-sectional data (1992-2017) of 166,739 adults aged 50+ across 24 countries from the Health and Retirement Study family of surveys to document associations between the number of children, treated as a categorical variable, and 5 health outcomes (self-rated health, activities of daily living limitations, instrumental activities of daily living limitations, chronic conditions, and depression). We perform multivariable analyses by estimating logistic regression models for each country and each outcome.

RESULTS

Multiple comparisons between categories of number of children revealed at least 1 significant difference in each country, and a majority of significant differences indicated those with more children had poorer health. The risk of poorer health for parents of multiple children was observed in 15 countries, but in some countries, fewer children predict poorer health. The greatest number of differences was identified for depression and chronic conditions, and very few for functional limitations.

DISCUSSION

We observe a greater probability that more children are associated with poorer health in later life, especially for chronic conditions and depression. However, a universal global or regional pattern could not be identified. These findings raise new questions about how country contexts shape fertility and health.

Caregiving experiences of informal caregivers of adult stroke patients during the COVID-19 pandemic: a qualitative systematic review protocol

OBJECTIVE

The objective of this review is to identify, appraise, and synthesize the best available qualitative evidence on the caregiving experiences of informal caregivers of adult stroke patients during the COVID-19 pandemic.

INTRODUCTION

The functional and health outcomes of stroke patients are directly impacted by the mental and physical well-being of the patient's informal caregiver, which have been negatively affected by COVID-19 due to a lack of caregiver education and competency in caring for stroke patients. Therefore, improvement of the informal caregiver experience preserves the stroke survivor-caregiver relationship and the care goals of stroke patients.

INCLUSION CRITERIA

This review will consider qualitative studies focusing on the experiences of informal caregivers of adult stroke patients during COVID-19. Only informal caregivers will be included, defined as individuals of any age, gender, or culture who provide care, typically unpaid, to someone with whom they have a personal relationship (ie, family or friend). Studies conducted in inpatient settings, rehabilitation settings, community care settings, or home care settings will be considered.

METHODS

The databases to be searched include MEDLINE, CINAHL, Embase, Web of Science, and PsycINFO. Sources of unpublished studies and gray literature will include ProQuest Dissertations and Theses, MedNar, and the American Heart Association. Studies published from 2019 to the present will be considered and data synthesis will be conducted using the meta-aggregation approach. Confidence in the findings will be assessed using the ConQual approach.

SYSTEMATIC REVIEW REGISTRATION NUMBER

PROSPERO CRD42022326666.

Gendered work-family life courses and late-life physical functioning: A comparative analysis from 28 European countries

Combining work and family roles can have beneficial consequences on health but could also result in chronic stress and adverse health outcomes at older ages. This study aimed to examine combined employment, parenthood, and partnership histories of men and women during the childbearing period (ages 15-49), and to investigate the links of these work and family roles with physical functioning later in life. We used data from the Survey of Health, Ageing and Retirement in Europe (SHARE) with retrospective information on employment, parenthood, and partnership histories for 18,057 men and 20,072 women (n = 38,129) living in 28 different countries belonging to six European welfare clusters. We applied multichannel sequence analysis (MCSQA) and hierarchical clustering to group work-family trajectories into 12 clusters for men and 15 clusters for women. We assessed the association between work-family life courses and grip strength by estimating multivariable linear regression models. Delayed work and family transitions, unstable employment, and the absence of combinations of work and family roles between age 15 and 49 were associated with weaker grip strength in later life for both men and women. Results differed by gender and were framed by the welfare context in which gendered work and family responsibilities unfold across individual life courses. The findings make an important contribution to the domain of gender and health in later life and stress the need to engage more with issues related to the mechanisms linking work and family trajectories to poor health in later life.

Childlessness and Health Among Older Adults: Variation Across Five Outcomes and 20 Countries

OBJECTIVES

No previous study to the best of our knowledge has examined the association between childlessness and health using a wide range of countries and health outcomes. This study improves previous literature by examining the relationship between "childlessness" (1 = childless for any reason, 0 = parent of biological, step, or adopted child) and health across 20 countries and five health outcomes.

METHODS

Drawing on cross-sectional harmonized data from the family of Health and Retirement Surveys across the United States (HRS, Wave 11), Europe (SHARE, Waves 4 and 5), Mexico (MHAS, Wave 3), and China (CHARLS, Wave 2), we use logistic regression models to estimate the association between childlessness and poor health (poor self-rated health, 1 or more ADL limitations, 1 or more IADL limitations, 1 or more chronic conditions, and depression) in a sample of adults aged 50 and older across 20 countries (N = 109,648).

RESULTS

Our results point to an absence of associations between childlessness and health, and suggest that childlessness may be associated with better (e.g., Mexico, Hungary) or worse health (e.g., Austria, Estonia, Netherlands, Poland) in certain contexts and for certain measures.

DISCUSSION

We discuss these findings in light of the meaning of childlessness, as well as cross-national economic, social, and cultural contexts to provide suggestions for aging policy and future research.