The Strength of Parent-Adult Child Ties in Biological Families and Stepfamilies: Evidence From Time Diaries From Older Adults.

We examine older partnered parents' time spent with adult children in biological and step families, treating time together as an indication of relationship strength. Using a unique national sample of U.S. time diaries from the Panel Study of Income Dynamics, we investigate time with all adult children combined and with each adult child. We find that time together depends on family structure and parent-adult child dyadic relationship type embedded in family structure. In analyses of all adult children combined, an older parent is more likely to spend time with adult children in biological families than in stepfamilies only when there is no shared biological child in the stepfamily. In dyadic analyses, a parent's tie with an adult child who is a biological child of both partners is stronger in stepfamilies than in biological families. Moreover, among stepfamilies, ties are not uniformly stronger with biological children relative to stepchildren; differences emerge only in more complex families when each partner has biological children from previous relationships. Our findings challenge the view that ties with older parents are always weaker with stepchildren in stepfamilies and point to the importance of considering parent-child relationships in the broader family context.

A day in the life of caregivers to older adults with and without dementia: Comparisons of care time and emotional health.

INTRODUCTION: How care-related time and emotional health over the day differ for those assisting older adults with and without dementia is unclear. METHODS: Using 2134 time diaries from the National Study of Caregiving, we compared emotional health and care time for caregivers of older adults with and without dementia. RESULTS: Caregivers to older adults with dementia experienced worse (higher scores) on a composite measure of negative emotional health (4.2 vs 3.3; P < .05) and provided more physical/medical care (33.7 vs 16.2 minutes; P < .05) and less transportation assistance (12.6 vs 24.8 minutes; P < .05) than other caregivers. In models, providing physical/medical care was associated with worse emotional health (ß = 0.15; P < .01) and socializing with the care recipient was associated with worse emotional health when the recipient had dementia (ß = 0.28; P < .01). DISCUSSION: Findings highlight the opportunity for targeted interventions to address the emotional consequences of different types of care time in the context of dementia.

Dementia Prevalence, Incidence and Mortality Trends Among US Adults Ages 72 and Older, 2011-2021.

BACKGROUND: U.S.-focused studies have reported decreasing dementia prevalence in recent decades, but have not yet focused on the implications of the COVID-19 pandemic for trends. METHODS: We use the 2011-2021 National Health and Aging Trends Study (N=48,065) to examine dementia prevalence, incidence and mortality trends among adults ages 72 and older, and the contribution to prevalence trends of changes in the distribution of characteristics of the older population ("compositional shifts") during the full and pre-pandemic periods. To minimize classification error, individuals must meet dementia criteria for two consecutive rounds. RESULTS: The prevalence of probable dementia declined from 11.9% in 2011 to 9.2% in 2019 and 8.2% in 2021 (3.1% average annual decline). Declines over the 2011-2021 period were concentrated among those ages 80-89 and non-Hispanic White individuals. Declines in dementia incidence were stronger for the 2011-2021 period than for the pre-pandemic period while mortality among those with dementia rose sharply with the onset of the COVID-19 pandemic. Shifts in the composition of the older population accounted for a smaller fraction of the decline over the full period (28%) than over the pre-pandemic period (45%). CONCLUSIONS: Declines in dementia prevalence continued into years marked by onset of the COVID-19 pandemic, along with declines in incidence and sharp increases in mortality among those with dementia. However, declines are no longer largely attributable to compositional changes in the older population. Continued tracking of dementia prevalence, incidence and mortality among those with and without dementia is needed to understand long-run consequences of the pandemic.

Exposure to childhood maltreatment predicts adult physiological dysregulation, particularly inflammation.

Although a growing literature describes the effects of negative childhood experiences on biological outcomes, it is difficult to compare results across studies because of differences in measures of childhood experiences, biological markers, sample characteristics, and included covariates. To ensure comparability across its analyses, this study used a single national survey of adults in the United States-the Midlife in the United States (MIDUS) study-to examine comprehensively the association between adverse childhood experiences, operationalized as childhood maltreatment (CM), and biological markers of risk for poor health and to assess whether these associations differ by type of maltreatment, sex, or race. The sample included 1254, mostly White (78%), adults aged 34-86 years (mean age 57 years), 57% of whom were female. We present incidence rate ratios (IRR) from negative binomial and Poisson regressions to examine the relationships between exposure to CM (emotional, physical, and sexual abuse; emotional and physical neglect; and a CM-index reflecting frequency across all five types of maltreatment) and four biological risk summary scores (overall physiological dysregulation, cardiometabolic risk, inflammation, and hypothalamic pituitary axis/sympathetic nervous system (HPA/SNS) function). We also tested whether the effect of each type of CM varied by sex and by race. The CM-index was associated with higher overall physiological dysregulation and inflammation, but the associations were weaker and not statistically significant for cardiometabolic risk and HPA/SNS function. With the exception of a possible sex difference in the association between sexual abuse and overall physiological dysregulation, there was little evidence that the associations varied systematically by type of CM or by sex or race. We conclude that exposure to CM predicts adult biological risk, particularly inflammation. Inconsistency with previous research suggests that additional research is needed to confirm findings regarding sex and race differences.

Work as Overload or Enhancement for Family Caregivers of Older Adults: Assessment of Experienced Well-Being Over the Day.

Objective: This study examines work and care patterns and their association with experienced well-being over the course of the day and tests a moderating effect of gender. Background: Many family and unpaid caregivers to older adults face dual responsibilities of work and caregiving. Yet little is known about how working caregivers sequence responsibilities through the day and their implications for well-being. Method: Sequence and cluster analysis is applied to nationally representative time diary data from working caregivers to older adults in the U.S. collected by the National Study of Caregiving (NSOC) (N=1,005). OLS regression is used to test the association with well-being and a moderating effect of gender. Results: Among working caregivers, five clusters emerged, referred to as: Day Off, Care Between Late Shifts, Balancing Act, Care After Work, and Care After Overwork. Among working caregivers, experienced well-being was significantly lower among those in the Care Between Late Shifts and Care After Work clusters relative to those in the Day Off cluster. Gender did not moderate these findings. Conclusion: The well-being of caregivers who split time between a limited number of hours of work and care is comparable to those who take a day off. However, among working caregivers balancing full-time work - whether day or night - with care presents a strain for both men and women. Implications: Policies that target full-time workers who are balancing care for an older adult may help increase well-being.

Incident Care Trajectories for Older Adults With and Without Dementia.

OBJECTIVE: Despite cross-sectional evidence that persons living with dementia receive disproportionate hours of care, studies of how care intensity progresses over time and differs for those living with and without dementia have been lacking. METHOD: We used the 2011-2018 National Health and Aging Trends Study to estimate growth mixture models to identify incident care hour trajectories ("classes") among older adults (N = 1,780). RESULTS: We identified 4 incident care hour classes: "Low, stable," "High, increasing," "24/7 then high, stable," and "Low then resolved." The high-intensity classes had the highest proportions of care recipients with dementia and accounted for nearly half of that group. Older adults with dementia were 3-4 times as likely as other older adults to experience one of the 2 high-intensity trajectories. A substantial proportion of the 4 in 10 older adults with dementia who were predicted to be in the "Low, stable" class lived in residential care settings. DISCUSSION: Information on how family caregiving is likely to evolve over time in terms of care hours may help older adults with and without dementia, the family members, friends, and paid individuals who care for them, as well as their health care providers assess and plan for future care needs.

Change in Mobility: Consistency of Estimates and Predictors Across Studies of Older Adults.

OBJECTIVES: This study compares estimates and determinants of within-individual changes in mobility across surveys of older U.S. adults. METHODS: Data come from the Health and Retirement Study (HRS) and the Midlife in the United States (MIDUS) study. Measures of mobility comprise self-reported level of difficulty with walking several blocks, going up several flights of stairs, lifting and carrying 10 pounds, and stooping. Predictors include sociodemographic characteristics and indicators of health and health behaviors. We pool the datasets and estimate weighted lagged dependent variable logistic regression models for each activity, assessing cross-study differences using interaction terms between a survey indicator and relevant variables. RESULTS: Estimates of declines in mobility differ substantially across surveys for walking, lifting and carrying, and stooping, but there are no between-survey differences in the probability of (not) recovering from a limitation. With the exception of age, determinants of change are similar between studies. For lifting/carrying and stooping, the age-related increase in developing limitations is less steep at younger ages for HRS respondents than MIDUS respondents, but steeper at older ages. DISCUSSION: To compare estimates of mobility change across surveys, mobility measures would need to be harmonized. Determinants of mobility change, however, are more comparable.

Do Family Relationships Buffer the Impact of Disability on Older Adults' Daily Mood? An Exploration of Gender and Marital Status Differences.

OBJECTIVE: We evaluate whether non-spousal family support and strain moderate the effect of disability on two daily emotions (happiness and frustration) among older adults, and whether these patterns differ by gender among married persons, and by marital status among women. BACKGROUND: Stress buffering perspectives predict that harmful effects of stress on well-being are buffered by family support, whereas stress proliferation models suggest these effects are intensified by family strain. The extent to which family relationships moderate associations between stress and well-being may vary on the basis of gender and marital status, as non-spousal family ties are considered especially salient for women and those without a romantic partner. METHOD: Daily diary data are from the 2013 Disability and Use of Time supplement to the Panel Study of Income Dynamics (n=1,474), a national sample of adults ages 60+. Multivariate regression models are estimated for married/partnered men and women, and formerly married women. RESULTS: Neither family support nor strain moderated the effect of severe impairment on married men's daily emotions. Family support buffered the effect of severe impairment on frustration among divorced and widowed women, but not their married counterparts. Counterintuitively, family arguments mitigated against frustration and increased happiness among married women with severe impairment. CONCLUSION: Consistent with stress buffering perspectives, family support was most protective for the vulnerable population of formerly married older women with severe impairment. IMPLICATIONS: This study underscores the importance of family support for the large and growing population of formerly married women managing health-related challenges in later life.

Late life disability and experienced wellbeing: Are economic resources a buffer?

BACKGROUND: Disablement has been linked to compromised wellbeing in later life, but whether material resources buffer these negative effects is unclear. OBJECTIVE: Drawing upon conceptual models of stress and coping, we analyze experienced wellbeing data from time diary interviews with adults ages 60 and older. We expect that experienced wellbeing will be influenced by each stage of the disablement process and that higher income and wealth will buffer the negative effects of disability on experienced wellbeing. Because income is a better reflection of one's liquid resources while assets reflect lifetime accumulation, we expect income to be a more substantial buffer than assets. METHODS: We use the Disability and Use of Time Supplement to the Panel Study of Income Dynamics (N = 1607). We consider several measures of the disablement process (activity limitations, impairment severity, duration of limiting condition) and history of work limitation and evaluate both pre-tax income and net worth quartiles. We estimate a series of multi-level regression models that account for clustering of individuals within couples. We calculate the marginal effects of disability on wellbeing at different quartiles of economic resources. RESULTS: We find that impairment severity is associated with worse experienced wellbeing before and after adjusting for covariates, and income buffers these negative effects for those in the middle-income quartiles. CONCLUSIONS: Future research should further explore the mechanisms through which income buffers the negative effects of impairment severity and specify the accommodations that enable economically disadvantaged and advantaged older adults alike to withstand physical declines while maintaining wellbeing.

Time Use and Experienced Wellbeing of Older Caregivers: A Sequence Analysis.

BACKGROUND AND OBJECTIVES: The diminished wellbeing of caregivers is well documented, but studies typically draw upon coarse measures of time use and thus provide limited understanding of the role of specific care activities in the daily lives of care providers. This study uses time diary data to explore whether there are signature care patterns throughout the day and whether these care patterns have implications for caregivers' experienced wellbeing. RESEARCH DESIGN AND METHODS: Using a national sample of 511 time diaries from older caregivers in the Disability and Use of Time supplement to the Panel Study of Income Dynamics, we examine minutes of care provided on the prior day, overall and for four broad care categories (household, personal care, transportation, and visiting), and patterns of care over the day, the latter based on sequence and cluster analysis. RESULTS: Older caregivers spend on average 2.3 hr providing care to another adult on care days. Caregiving follows a roller-coaster pattern over the day, peaking at mealtimes. Sequence analysis suggests five distinctive caregiving patterns, which vary by both demographic characteristics of the caregiver (gender, work status) and care arrangement type (relationship to recipient, whether sole caregiver to recipient). The 40% who provide only marginal assistance of about 1 hr report lower experienced wellbeing than the 28% who provide sporadic assistance with a mix of activities for about 2 hr. DISCUSSION AND IMPLICATIONS: A substantial share of older caregivers provides only 1 hr of assistance on a given day but appears to be at risk for reduced wellbeing. Better understanding of the reason for their marginal involvement and reduced wellbeing is warranted.

Declines in late-life disability: the role of early- and mid-life factors.

Investigations into the reasons for declines in late-life disability have largely focused on the role of contemporaneous factors. Adopting a life-course perspective as a backdrop, in this paper we ask whether there also has been a role for selected early- and mid-life factors in the decline, and if so whether these factors have been operating through changes in the risks of disability onset or recovery. Drawing on five waves from 1995 to 2004 of the U.S. Health and Retirement Study, we found for the 75 years and older population in the United States that the prevalence of difficulty with activities of daily living (ADL) declined from 30.2% in 1995 to 26.0% in 2004, whereas the trend in difficulty with instrumental activities of daily living (IADL) was flat. Onset of ADL limitations also was reduced during this period while recovery increased. Changes in the educational composition of the older population were linked to declines in the prevalence of ADL limitations, but there were also modest contributions of changes in mother's education, self-rated childhood health, and lifetime occupation. Declines in late-life vision impairments and increases in wealth also contributed substantially to the downward trend, and had chronic conditions not increased, it would have been even larger. Reductions in the onset of ADL limitations were partly driven by changes in educational attainment of respondents and their mothers and, in late-life, better vision and wealth. In contrast, the recovery trend was not accounted for by changes in early- or mid-life factors. We conclude that early- and mid-life factors have contributed along with late-life factors to U.S. late-life disability trends mainly through their influence on the onset of, rather than recovery from, limitations.

Racial and ethnic disparities in mobility device use in late life.

OBJECTIVE: Although racial and ethnic disparities in disability are well established and technology is increasingly used to bridge gaps between functional deficits and environmental demands, little research has focused on racial and ethnic disparities in device use. This study investigated whether use of mobility devices differs by race and ethnicity and explored several reasons for this difference. METHODS: The sample included community-dwelling adults aged 65 and older from the 2002 and 2004 waves of the Health and Retirement Study. We used predisposing, need, and enabling factors to predict mobility device use alone and combined with personal care. RESULT: Blacks had the highest rates of using mobility devices, followed by Hispanics and then Whites. Need and enabling factors explained differences between Blacks and Whites in wheelchair use but not cane use or use of devices without personal care. Other predisposing factors explained most differences between Hispanics and Whites. DISCUSSION: Because minorities appear to be using mobility devices in proportion to underlying need, increasing device use by minorities may not reduce disparities in mobility disability. Efforts to address racial/ethnic disparities in mobility disability in late life, therefore, may need to focus on differences in underlying functional decline rather than the accommodation of it.

The short-term stability of life satisfaction judgments.

Life satisfaction judgments are thought to reflect people's overall evaluation of the quality of their lives as a whole. Because the circumstances of these lives typically do not change very quickly, life satisfaction judgments should be relatively stable over time. However, some evidence suggests that these judgments can be easily manipulated, which leads to low stability even over very short intervals. The current study uses a unique data set that includes multiple assessments of life satisfaction over both long (up to 4 years) and short (over the course of a single interview) intervals to assess whether information that is made salient during the course of an interview affects life satisfaction judgments at the end of the interview. Results suggest that this intervening information has only small effects on the final judgment and that placement within an interview has little influence on the judgment that people provide. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

Disability and Activity-related Emotion in Later Life: Are Effects Buffered by Intimate Relationship Support and Strain?

We use daily diary data from the Disability and Use of Time supplement to the 2013 Panel Study of Income Dynamics ( n = 1,162) to evaluate (1) the extent to which marital/partner support and strain moderate the effects of disability on five activity-related emotions (happiness, calm, sadness, frustration, worry) and overall negative and positive emotion among older married, cohabiting, and dating persons and (2) whether such patterns differ significantly by gender. Marital support buffers against negative emotions and increases feelings of calm among severely impaired women. By contrast, support intensifies negative emotions and decreases feelings of calm among severely impaired men. Relationship strain also intensifies the effect of severe impairment on men's frustration, sadness, worry, and negative mood but has negligible effects on the negative emotions of men with low impairment and women. Frequent support and criticism may threaten highly impaired older men's sense of autonomy and emotional well-being.

Physiological Dysregulation, Frailty, and Risk of Mortality Among Older Adults.

This study examines whether frailty is associated with mortality independently of physiological dysregulation (PD) and, if so, which is the more accurate predictor of survival. Data come from the Social Environment and Biomarkers of Aging Study. We use Cox proportional hazard models to test the associations between PD, frailty, and 4- to 5-year survival. We use Harrell's concordance index to compare predictive accuracy of the models. Both PD and frailty are significantly, positively, and independently correlated with mortality: Worse PD scores and being frail are associated with a higher risk of dying. The overall PD score is a more accurate predictor of survival than frailty, although model prediction improves when both measures are included. PD and frailty independently predict mortality, suggesting that the two measures may be capturing different aspects of the same construct and that both may be important for identifying individuals at risk for adverse health outcomes.

Aging, mobility impairments and subjective wellbeing.

BACKGROUND: Wellbeing is often described as U-shaped over the life course, suggesting an apparent paradox that wellbeing remains high at older ages despite increases in impairments. OBJECTIVE/HYPOTHESES: We explore associations among age, lower body impairments-one of the most common late-life impairments-and three measures of wellbeing: life satisfaction, emotional wellbeing and somatic wellbeing. We hypothesize that age effects are positive, become stronger once lower body impairments are controlled, and are concentrated among those who have maintained their mobility. Net of confounding factors, we hypothesize that lower body impairments are associated with worse wellbeing and these effects diminish with advancing age. METHODS: We analyze the 2013 Disability and Use of Time supplement to the Panel Study of Income Dynamics (N = 1607 adults ages 60 and older). We estimate nested regression models that include age, severity of lower body impairments and confounding demographic, psychological, and socioeconomic factors and activities; test age-impairment interactions; and estimate age- and impairment-stratified models. RESULTS: Positive age effects were observed after controlling for lower body impairments for life satisfaction (ß = 0.90; p < 0.05), although statistical significance weakened (p = 0.07) in fully adjusted models. For emotional wellbeing, adjusted age effects were negative (ß = -0.05; p < 0.05) and were concentrated among those with limitations (ß = -0.14; p < 0.01). For all three outcomes, severity of impairments reduced wellbeing in adjusted models. These effects were strongest for somatic wellbeing, especially for 65-74 year olds. CONCLUSIONS: Our study challenges the notion that wellbeing is U-shaped throughout the life course and underscores the critical role of mobility across wellbeing domains in later life.

Impairment Severity and Evaluative and Experienced Well-being Among Older Adults: Assessing the Role of Daily Activities.

BACKGROUND AND OBJECTIVES: Physical impairments affect a substantial number of older adults in the United States, with rates increasing with advancing age. Impairment is linked with compromised well-being, although the reasons are not fully understood. We explore the extent to which linkages between impairment severity and well-being are accounted for by older adults' daily activities. We speculate that activities may influence global appraisals of well-being by offering the opportunity to fulfill productive and social roles and may influence daily emotions by shaping the context (places, people) in which life occurs. RESEARCH DESIGN AND METHOD: We examine the effects of impairment severity on life satisfaction and four diary-based experienced well-being measures (happiness, frustration, worry, and sadness). Data are from the Disability and Use of Time supplement to the Panel Study of Income Dynamics (n = 1,606), a national sample of adults ages 60 years and older in the United States. We estimate nested regression models, taking into account within-person correlations for experienced well-being. RESULTS: Impairment severity is associated with poorer assessments of life satisfaction and all four dimensions of experienced well-being. Activity measures, which encompass eight productive (e.g., household chores) and three leisure (e.g., socializing) activities, account for 10% of the association between impairment and life satisfaction, and virtually none of the association between impairment and experienced well-being. However, psychosocial factors including higher neuroticism, lower self-efficacy, and poorer quality social relationships account for a sizeable share of the associations. DISCUSSION AND IMPLICATIONS: Role-fulfilling aspects of activities appear to be more central than contextual aspects of activities to the impairment-well-being relationship. However, potentially modifiable psychosocial factors account for a much greater share of this relationship. Further research is needed on whether interventions targeting these psychosocial factors might bolster emotional well-being for older adults experiencing impairments.

Trends in the use of assistive technology and personal care for late-life disability, 1992-2001.

We describe national trends during the 1990s in late-life difficulty and assistance with self-care activities. Among older Americans living in the community and experiencing difficulty with self-care activities, assistive-technology use increased substantially whereas use of personal care declined. Using a decomposition technique, we demonstrate that these shifts in assistance toward technology account for half the decline in the number of people dependent on personal care.

Marital Quality and Negative Experienced Well-Being: An Assessment of Actor and Partner Effects Among Older Married Persons.

OBJECTIVES: We evaluate (a) associations between marital quality (emotional support, strain, and overall appraisal) and three negative aspects of experienced well-being (frustration, sadness, and worry) among older husbands and wives and (b) the relative importance of own versus spouse's marital quality assessments for understanding experienced well-being in later life. METHOD: Data are from the 2009 Disability and Use of Time daily diary supplement to the Panel Study of Income Dynamics (N = 722). We estimate actor-partner interdependence models, using seemingly unrelated regression. RESULTS: Own reports of marital strain are associated with own frustration, sadness, and worry among wives and are associated with frustration only among husbands. Own reports of marital support are associated with negative emotion among husbands only: higher levels of marital support are associated with less worry. Results from partner effects analyses also are mixed. Husbands' reports of marital strain are associated with wives' elevated frustration levels, whereas wives' reports of greater marital support are associated with their husbands' higher frustration levels. DISCUSSION: One's own and spouse's marital appraisals play a complex role in shaping negative emotions among older adults. Findings suggest that frustration is a particularly complex emotion and a promising area for further study among older married couples.

Cohort Profile: The Social Environment and Biomarkers of Aging Study (SEBAS) in Taiwan.

The Social Environment and Biomarkers of Aging Study (SEBAS) is a nationally representative longitudinal survey of Taiwanese middle-aged and older adults. It adds the collection of biomarkers and performance assessments to the Taiwan Longitudinal Study of Aging (TLSA), a nationally representative study of adults aged 60 and over, including the institutionalized population. The TLSA began in 1989, with follow-ups approximately every 3 years; younger refresher cohorts were added in 1996 and 2003. The first wave of SEBAS, based on a sub-sample of respondents from the 1999 TLSA, was conducted in 2000. A total of 1023 respondents completed both a face-to-face home interview and, several weeks later, a hospital-based physical examination. In addition to a 12-h (7 pm-7 am) urine specimen collected the night before and a fasting blood specimen collected during the examination, trained staff measured blood pressure, height, weight and waist and hip circumferences. A second wave of SEBAS was conducted in 2006 using a similar protocol to SEBAS 2000, but with the addition of performance assessments conducted by the interviewers at the end of the home interview. Both waves of SEBAS also included measures of health status (physical, emotional, cognitive), health behaviours, social relationships and exposure to stressors. The SEBAS data, which are publicly available at [http://www.icpsr.umich.edu/icpsrweb/NACDA/studies/3792/version/5], allow researchers to explore the relationships among life challenges, the social environment and health and to examine the antecedents, correlates and consequences of change in biological measures and health.