Time-use Diaries Research Articles

Change and Inequality in German Teenagers’ Typical Time-Use Sequences Between 1991 and 2013

How children spend their time is widely regarded as a key factor shaping their development and wellbeing, as well as the intergenerational transmission of socio-economic and gender inequalities. While there is much evidence on the aggregate amount of time teenagers spent on different activities, we know little about how teenagers’ activities unfold during a typical day. We use social sequence analysis and data collected in 1991/92, 2001/02 and 2012/13 via high-frequency time-use diaries of teenagers aged 12-16 in Germany to provide a fine-grained description of teenagers’ everyday time-use sequences. We identify and visualize a typology of teenagers’ time-use during weekdays and weekend days, respectively, which groups teenagers into clusters of typical time-use sequences. These typical time-use sequences change in prevalence over time, and are stratified by teenagers’ socio-economic background, gender, and age. Our findings reveal the sequential structure of teenagers’ time use, provide new evidence corroborating theories of the social stratification of teenagers’ time use, and complement existing evidence on teenagers’ aggregate time-use. Our identification of teenagers’ typical time-use sequences forms the basis for future research to examine their causes and consequences, as well as their role in the reproduction of social inequalities.

Change and Inequality in German Teenagers’ Typical Time-Use Sequences Between 1991 and 2013. Online Appendix

How children spend their time is widely regarded as a key factor shaping their development and wellbeing, as well as the intergenerational transmission of socio-economic and gender inequalities. While there is much evidence on the aggregate amount of time teenagers spent on different activities, we know little about how teenagers’ activities unfold during a typical day. We use social sequence analysis and data collected in 1991/92, 2001/02 and 2012/13 via high-frequency time-use diaries of teenagers aged 12-16 in Germany to provide a fine-grained description of teenagers’ everyday time-use sequences. We identify and visualize a typology of teenagers’ time-use during weekdays and weekend days, respectively, which groups teenagers into clusters of typical time-use sequences. These typical time-use sequences change in prevalence over time, and are stratified by teenagers’ socio-economic background, gender, and age. Our findings reveal the sequential structure of teenagers’ time use, provide new evidence corroborating theories of the social stratification of teenagers’ time use, and complement existing evidence on teenagers’ aggregate time-use. Our identification of teenagers’ typical time-use sequences forms the basis for future research to examine their causes and consequences, as well as their role in the reproduction of social inequalities.

Daylight duration and time allocation of children and adolescents

This study explores the allocation of time, particularly to sleep, among children and adolescents in response to daily daylight variation. Utilising a dataset of over 50,000 time-use diaries from two Australian cohorts spanning 16 years and employing an individual fixed effects estimator, we uncover a substantial causal impact of daily daylight duration on sleep patterns. Our findings reveal that days with longer daylight hours are associated with a decrease in total sleep duration, primarily driven by a later sleep onset time. Additionally, longer daylight hours correspond to reduced time spent on personal care and media activities, with increased dedication to school and physical activities. Furthermore, we identify socio-demographic factors moderating these effects, such as older age and weekend days exerting a stronger influence on sleep duration, while females and children of unemployed mothers exhibit a subtle impact. These insights contribute to our understanding of how environmental factors shape daily routines and offer implications for designing schedules that promote positive developmental outcomes in young individuals.

Reliability and validity of rapid assessment tools for measuring 24-hour movement behaviours in children aged 0–5 years: the Movement Behaviour Questionnaire Baby (MBQ-B) and child (MBQ-C)

BackgroundThe development of validated “fit-for-purpose” rapid assessment tools to measure 24-hour movement behaviours in children aged 0–5 years is a research priority. This study evaluated the test-retest reliability and concurrent validity of the open-ended and closed-ended versions of the Movement Behaviour Questionnaire for baby (MBQ-B) and child (MBQ-C).Methods300 parent-child dyads completed the 10-day study protocol (MBQ-B: N = 85; MBQ-C: N = 215). To assess validity, children wore an accelerometer on the non-dominant wrist (ActiGraph GT3X+) for 7 days and parents completed 2 × 24-hour time use diaries (TUDs) recording screen time and sleep on two separate days. For babies (i.e., not yet walking), parents completed 2 × 24-hour TUDs recording tummy time, active play, restrained time, screen time, and sleep on days 2 and 5 of the 7-day monitoring period. To assess test-retest reliability, parents were randomised to complete either the open- or closed-ended versions of the MBQ on day 7 and on day 10. Test-retest intraclass correlation coefficients (ICC’s) were calculated using generalized linear mixed models and validity was assessed via Spearman correlations.ResultsTest-retest reliability for the MBQ-B was good to excellent with ICC’s ranging from 0.80 to 0.94 and 0.71–0.93 for the open- and closed-ended versions, respectively. For both versions, significant positive correlations were observed between 24-hour diary and MBQ-B reported tummy time, active play, restrained time, screen time, and sleep (rho = 0.39–0.87). Test-retest reliability for the MBQ-C was moderate to excellent with ICC’s ranging from 0.68 to 0.98 and 0.44–0.97 for the open- and closed-ended versions, respectively. For both the open- and closed-ended versions, significant positive correlations were observed between 24-hour diary and MBQ-C reported screen time and sleep (rho = 0.44–0.86); and between MBQ-C reported and device-measured time in total activity and energetic play (rho = 0.27–0.42).ConclusionsThe MBQ-B and MBQ-C are valid and reliable rapid assessment tools for assessing 24-hour movement behaviours in infants, toddlers, and pre-schoolers. Both the open- and closed-ended versions of the MBQ are suitable for research conducted for policy and practice purposes, including the evaluation of scaled-up early obesity prevention programs.

Abstract MP64: Cardiovascular Responses to Occupational Physical Activity Are Exaggerated by Work-Related Stress and Low Fitness

Introduction: Proposed mechanisms explaining the link between high occupational physical activity (OPA) and cardiovascular disease hypothesize that high work-related stress and low worker fitness may exacerbate cardiovascular responses to OPA. Hypothesis: Direct associations between OPA and acute cardiovascular responses will be stronger under high work-related stress and in workers with lower fitness. Methods: 19 male workers (age=46.6±7.9, 68.4% White) with high OPA jobs were observed for seven days. Steps, light (LPA), and moderate-to-vigorous physical activity (MVPA) during work were measured using a thigh-worn activPAL3 micro, hip-worn Actigraph GT3X-BT, and time-use diary. Heart rate (HR) was measured continuously with a Polar chest strap. 24-hour blood pressure (BP) was measured using an ambulatory BP monitor on one workday. Rate-pressure product (RPP), an indirect measure of cardiac workload, was calculated as systolic BP x HR. Daily work-related stress was measured with the Stress in General Scale (scores=-3-21 where higher scores indicate more stress). Worker fitness was estimated as VO 2 max (ml·kg -1 ·min -1 ) using a submaximal treadmill test. Effect modification by stress and fitness on the associations between OPA and RPP was examined using mixed effects models with interaction terms. Results: Work-related stress was directly associated with 24-hour RPP (β=94.10 mmHg*bpm/stress point, p=0.024) while worker fitness was not (β=-33.0 mmHg*bpm/VO 2 max, p=0.561). Direct association between RPP and occupational MVPA were stronger with higher work-related stress and lower fitness (Table 1, p-for-interaction<0.05 for all). Lower intensity OPA (steps and LPA) were also associated with exacerbated RPP responses outside of work with higher work-related stress (Table 1, p-for-interaction<0.001 for all). Conclusions: OPA performed under high stress or by workers with low fitness may exaggerate cardiovascular responses and contribute to OPA's paradoxical cardiovascular health associations.

College Students' Adaptations of Activities and Experiences During the Pandemic Occupational Disruption.

During life disruptions, people adapt their activities responding to environmental stressors, resulting in new routines that support well-being. To explore college students' daily life experiences during the pandemic. Thirty students completed three time-use diaries, and responded to a survey on activity change during Coronavirus Disease 2019, satisfaction with social/leisure occupations, and well-being. Survey questions, duration of activities, and levels of were analyzed across 3 days. Exercise, school, socializing, and work were the most changed, often eliminating the activity, or modifying the activity, social context, or location. Time-use data indicated participants engaged in similar types of activities compared with nonpandemic times, but experienced different levels of pleasure and productivity related to some activities. Participants adjusted their activities/experiences to support their well-being. Examination of students' occupations and experiences uncovered the dynamic interaction between all levels of context-the macro (pandemic) and the micro (place to study).

Taking a detailed look at early childhood educators’ worktime

Despite the acknowledged complexity and time pressures of early childhood educators’ work, very few studies have examined the nature of this work, minute-by-minute, over the working day. This paper reports on data gathered through 10,155 time-use diary (TUD) records provided by 321 educators participating in the Exemplary Early Childhood Educators at Work Australian Research Council Linkage Project. Participants were recruited from preschool/kindergarten and long day care centres that had achieved a rating of Exceeding the Australian National Quality Standard on all seven Quality Areas. Analyses of this extensive dataset illustrate the rhythm and diversity of educators’ work across a typical day and identify the similarities and differences in worktime distributions for educators working in preschool vs. long day care settings, and for educators with different qualifications and positional responsibilities. The findings suggest differential allocations of worktime that raise important considerations for achieving high quality early childhood education and care services.

Coupling constraints affecting daily mobilities of Swedish families with wheelchair-using children

ABSTRACT Mobility can involve many barriers that make it challenging for individuals with disabilities to travel. When it is a child who has a disability, the whole family’s mobility practices can be affected by those barriers since families’ mobilities are often intertwined. This paper is based on time-use diaries and interviews with parents of wheelchair-using children living in Sweden. A time-geographical framework is used in the paper, especially focusing on the concept of coupling constraints, which can emerge when individuals need to be together to perform an activity, such as mobility. The main focus is on how coupling constraints between parents and the disabled child affect mobilities, but the findings show that couplings also exist with authorities and things and these can increase coupling constraints within the family. However, if being eligible for personal assistance and special transport service the coupling constraints within the family can decrease, indicating that such support systems are fundamental for these families’ mobilities. This paper also shows that time geography can be useful for disability studies and add new dimensions to the relational perspective on disability.

O059 Exploring Environmental Light Exposure in Children: A novel pilot spectrometer study

Abstract Introduction Light plays an important role in the timing of children’s circadian system. Artificial manipulation of the timing, intensity, spectra, and duration of light exposure has increased, but with little consideration of the impact on children’s development, health, and wellbeing. Children are exposed to brighter nights, darker days, and less natural light environments than prior generations. Exploring the 24-hour light environment is a critical first step in understanding how light affects children. Methods We conducted a pilot feasibility and acceptability study. The study is of children aged 5 – 8 years. Children wore a miniature spectrometer and an actigraph for 48-hours. During this period, their parents completed a survey and daily time-use diary. At the end of the study, children undergo a short evaluation interview, as this is a new form of wearable not previously used with children. This study examines the feasibility and potential utility of this form of measurement. Results 5 children have been recruited into the study (3 boys, 2 girls). Initial feasibility testing with children supports high acceptability and adherence to the study protocol. This presentation will focus on both the technology development aspects, useability and feasibility in children, and preliminary results. Discussion This study presents preliminary data that supports the feasibility of novel light exposure metrics. Understanding the impact of increased use of digital devices by children, and increased control and manipulation of their light environments, requires new measures and protocols. These tools will help improve understanding of the effects of light on children’s sleep.

Accuracy of a Web-Based Time-Use Diary (MEDAL) in Assessing Children's Meal Intakes With Food Photography by Parents as Reference: Instrument Validation Study.

My E-Diary for Activities and Lifestyle (MEDAL) is a web-based time-use diary developed to assess the diet and movement behaviors of Asian school children. This study aims to determine the accuracy of MEDAL in assessing the dietary intake of Malaysian school children, using photographs of the children's meals taken by their parents as an objective reference. A convenience sample of 46 children aged 10 to 11 years recorded their daily meals in MEDAL for 4 days (2 weekdays and 2 weekend days). Their parents took photographs of the meals and snacks of their children before and after consumption during the 4-day period and sent them along with a brief description of food and drinks consumed via an instant SMS text messaging app. The accuracy of the children's reports of the food they had consumed was determined by comparing their MEDAL reports to the photographs of the food sent by their parents. Overall, the match, omission, and intrusion rates were 62% (IQR 46%-86%), 39% (IQR 16%-55%), and 20% (IQR 6%-44%), respectively. Carbohydrate-based items from the food categories "rice and porridge"; "breads, spreads, and cereals"; and "noodles, pasta, and potatoes" were reported most accurately (total match rates: 68%-76%). "Snack and dessert" items were omitted most often (omission rate: 54%). Furthermore, side dishes from "vegetables and mushrooms," "eggs and tofu," "meat and fish," and "curry" food groups were often omitted (omission rates: 42%-46%). Items from "milk, cheese, and yogurt"; "snacks and desserts"; and "drinks" food groups intruded most often (intrusion rates: 37%-46%). Compared to the items reported by the boys, those reported by the girls had higher match rates (69% vs 53%) and lesser omission rates (31% vs 49%; P=.03, respectively). In conclusion, children aged 10 to 11 years can self-report all their meals in MEDAL, although some items are omitted or intruded. Therefore, MEDAL is a tool that can be used to assess the dietary intake of Malaysian school children.

Sociodemographic moderators of longitudinal changes in active play between childhood and adolescence in Australia

ABSTRACT Physical activity (PA) participation is prone to decline during childhood and adolescence. In Australia, this decline has been shown to particularly occur in active play. This study aimed to identify sociodemographic moderators of change in active play between 10-11y and 12-13y among Australian youth. The data were sourced from Waves 6–7 of the Longitudinal Study of Australian Children (n = 3567). Active play participation was measured using one-day time-use diaries (TUDs) completed by youth. Potential sociodemographic moderators were tested using multilevel mixed modelling, adjusted for pubertal development, body mass index z-score and TUD contextual variables (school attendance and season). Active play declined more among girls (β= −7.6 min/day, 95% CI = −13.3, −1.8), those who spoke English at home (β= −12.3 min/day, 95% CI = −22.0, −2.7) and marginally among those in regional/remote areas (β= −6.3 min/day, 95% CI = −12.8, +0.1). A widening gap in active play by sex was observed, while differences by language spoken at home and geographical remoteness weakened or became marginal over time. Interventions to promote active play could target girls in the transition to adolescence. Future studies could investigate whether active play declines earlier than 10-11y among youth who speak languages other than English at home and those living in urban areas.

Cross-sectional and longitudinal associations of domain-specific physical activity composition with health-related quality of life in childhood and adolescence in Australia

BackgroundHealth benefits have been linked with physical activity (PA), as well as some domains of PA among youth (e.g. organized PA and active transport). However, less is known about whether some PA domains are more beneficial than others. There is also a lack of evidence about whether health outcomes are related to the composition of PA (i.e. the share of PA spent in different domains). This study aimed to identify: (1) how the absolute durations of organized PA, non-organized PA, active transport and active chores/work at 10-11y are individually associated with physical, psychosocial and total health-related quality of life (HRQOL) at 10-11y and 12-13y; and (2) how the domain-specific composition of PA at 10-11y is associated with HRQOL at 10-11y and 12-13y.MethodsData from the Longitudinal Study of Australian Children were used in cross-sectional (n ≥ 2730) and longitudinal analyses (n ≥ 2376). Measurement included the Pediatric Quality of Life Inventory (PedsQL™) for HRQOL domains and one-day time-use diaries (TUDs) for PA domains. Robust linear regression models were used, controlling for age, sex, pubertal status, socioeconomic position, body mass index and TUD context (season and school attendance). Compositional models additionally adjusted for total PA duration and longitudinal models controlled for baseline PedsQL™ scores.ResultsNon-compositional models indicated that the duration of organized PA, and to a lesser extent non-organized PA, were positively but weakly associated with some HRQOL outcomes at 10-11y. These trends were not reflected in longitudinal models, although a 30-min increase in non-organized PA per day did predict marginally better psychosocial HRQOL at 12-13y (+ 0.17%; 95%CI = + 0.03%, + 0.32%). Compositional models revealed that a 30-min increase in organized PA relative to other domains was positively but weakly associated with physical (+ 0.32%; 95%CI = + 0.01%, + 0.63%), psychosocial (+ 0.41%; 95%CI = + 0.11%, + 0.72%) and total HRQOL (+ 0.39%; 95%CI = + 0.12%, + 0.66%) at 10-11y. However, the overall PA composition at 10-11y was not related to HRQOL at 12-13y.ConclusionsNon-compositional and compositional models generally concurred on the direction of cross-sectional and longitudinal relationships (and lack thereof) between PA domains and HRQOL outcomes. The strongest associations were cross-sectional between organized PA and HRQOL at 10-11y. However, all associations between PA domains and HRQOL outcomes were weak and may not be clinically meaningful.

"I Don't Want to Have the Time When I Do Nothing": Aging and Reconfigured Leisure Practices During the Pandemic.

In this paper, we contend that urban middle-class older Indians engaged in "serious leisure" as a way to reimagine and reconfigure the structure of everyday life during the pandemic-led epochal downtime. In particular, we heuristically show that leisure activity patterns and constraint negotiation strategies among older Indians followed conceptual semblances with the dominant leisure-based typology of Serious Leisure Perspective. By thematically analysing household surveys (n = 71), time-use diaries and in-depth interviews (n = 15) of middle to upper middle-class individuals (55-80 years), we show how both men and women distinguished between serious leisure that is marked by motivation, agency and perseverance with that of unstructured, routinized free-time (or causal leisure). Time-use diaries suggested that despite the changed realities of heightened domestic time available to both genders due to the pandemic, women recorded higher proportion of their daily hours in household management and caregiving. Although women were governed by moral-cultural self-descriptions in their engagement with leisure, it was often associated with an enhanced sense of self-actualisation, self-management and identity. Overall, we show how the social codes of age and gender were inextricably linked with the practice of leisure during the pandemic.

A New Time-Use Diary App to Measure Parental Investments

A New Time-Use Diary App to Measure Parental Investments

Adherence to Canadian 24-Hour Movement Guidelines among infants and associations with development: a longitudinal study

BackgroundTo examine: 1) longitudinal adherence to the Canadian 24-Hour Movement Guidelines in a sample of infants and 2) associations between adherence to the guidelines over time and development.MethodsParticipants were 250 parent-infant dyads from the Early Movers project in Edmonton, Alberta. At 2, 4, and 6 months of age, physical activity, sedentary behaviour, sleep, and development were measured with a parental questionnaire that included items from the Ages & Stages Questionnaire (ASQ-3). Parents also reported the dates six major gross motor milestones were acquired during the first 18 months of life according to World Health Organization criteria. In a sub-sample (n = 93), movement behaviours were also measured with a time-use diary at 2, 4, and 6 months and gross motor development was measured by a physiotherapist using the Alberta Infant Motor Scale (AIMS) at 6 months. Guideline adherence was defined as: 1) ≥ 30 min/day of tummy time, 2) no screen time, some reading time, no restrained bouts > 1 h (time-use diary only), and 3) 14–17 h (2 months) or 12–16 h (4 and 6 months) of sleep per 24-h period. Generalized estimating equations were conducted as well as linear mixed models and linear regression models that adjusted for demographic characteristics.ResultsFew infants met the guidelines at all time-points (questionnaire: 2%; time-use diary: 0%). Infants that met a recommendation at 2 months, compared to those that did not, were 1.8–8.2 times more likely to meet that recommendation at subsequent time-points. Meeting more recommendations across time-points, according to both measures, was associated with a higher mean ASQ-3 gross motor score. Each additional time-point of tummy time recommendation adherence (questionnaire-measured) was associated with a 5–11-day earlier acquisition of independent sitting, crawling, and independent standing milestones. In the sub-sample, each additional time-point of guideline adherence was associated with a 16% higher AIMS score at 6 months.ConclusionsGuideline adherence was low across the first 6 months of infancy. Overall, meeting more recommendations over this period appeared important for gross motor development. Parents and caregivers should be targeted as early as possible with guideline dissemination and activation strategies to promote healthy infant development.

Time change in the distribution of physical activity and its correlates among retired older Swedish adults: a repeated cross-sectional study from a national survey

BackgroundUnderstanding how older adults spend time in moderate- to vigorous-intensity physical activity (MVPA) is crucial to understanding healthy ageing. This study connects 24-h time-use diary records of the daily activities of a sample of Swedish older adults to energy intensities. The aim was to: i) estimate the prevalence of Swedish older adults (aged 65–84 years) who achieved recommended daily levels of physical activity; ii) identify what domains of everyday life contribute to MVPA; and iii) explore socio-demographic factors affecting rates of active living.MethodsWe draw on two Swedish nationally representative samples of time-use diary data from 2000/2001 and 2010/2011. Data covering the duration of all activities performed over two days were combined with activity-intensity information (metabolic equivalent of task [MET] values) to estimate the energy expenditure (MET min) originating from MVPA.ResultsResults indicate that 94.1% of Swedish older adults achieved the WHO-recommended minimum level of daily MVPA in 2010/2011; the share remained unchanged over the period. MVPA performed in natural environments (24.2%), during housework (22.8%), and on everyday walks in one’s local area (18.1%) were dominant domains contributing to energy expenditure. Home maintenance and repairs (8.8%), active transport (9.9%), and physical exercise (8.2%) contributed to a lesser extent. In 2000/2001, total MVPA energy expenditure was associated with gender, housing, living region, and disability; in 2010/2011, except for disability, these associations were no longer significant.ConclusionsThe high proportion of older adults who achieved the recommended level of MVPA, their allocation of MVPA time to diverse domains, and the reduced social distribution over time suggest that elderly people increasingly find their own paths to everyday physical activity. This indicates a need to promote MVPA not only in established ways, such as prescribed training programmes. The importance of active physical activities in natural environments, and of regular walks in the vicinity of home, indicates a need to incorporate healthy ageing considerations in wider urban and regional planning, for example, to increase access to natural environments and urban walkability. Also, older adults’ involvement in household chores, maintenance and repairs, and active transport extends responsibility to new policy areas.

Many different roads lead to Rome: equivalence of time-use for activity, sedentary and sleep behaviours and dietary intake profiles among adolescents

BackgroundHow we spend our time and what we eat have important implications for our health. Evidence suggests that health-equivalent behaviour change options which result in the same benefit are available within both time use (physical activities, sedentary behaviours and sleep) and diet (e.g., fruit and vegetables, snack foods). However, it is not yet known if health-equivalent choices exist across both time-use and diet behaviours. This study aimed to explore if a variety of different time-use and dietary profiles were associated with equivalent physical functioning score among adolescents.MethodsThis study used cross-sectional data from 2123 adolescent participants from the Longitudinal Study of Australian Children (LSAC) (mean age = 14.4 ± 0.5 years), including time-use diaries (min/day of sleep, self-care, screen time, quiet time, physical activity, school-related and domestic/social), diet questionnaires (serves/day of fruit and vegetables, discretionary (snack) foods and sugar-sweetened beverages) and a measure of physical functioning (PedsQL™ 4.0 physical functioning scale for teens). Multiple linear regression models were used to find the association of 24-h time-use composition (expressed as isometric log ratios) and dietary variables with physical functioning score. The models were used to estimate which time-use and diet profiles (within a feasible range from the sample average) were associated with equivalent physical functioning scores. Finally, an interactive app was developed to make the results accessible to end users.ResultsWithin 30 min and 1.5 servings of the average adolescent’s time-use and dietary behaviours, 45 equivalent options were associated with a ~ 0.2 SD improvement in physical functioning scale. All options associated with this improvement in physical function involved increasing physical activity and increasing fruit and vegetable intake, whilst also reducing discretionary food intake and sugar-sweetened beverages. Most behavioural options also increased sleep and reduced time spent in self-care, screen time and quiet time activities.ConclusionsThere are a range of time-use and diet profiles that may result in equivalent benefits in physical functioning among adolescents. Communicating these options using decision tools such as interactive apps may allow for tailored interventions across both time use and diet which are based on an individual’s needs, preferences and constraints.

Time-Geographic Project of Household Food Provision: Conceptualization and a Pilot Case Study

Geographers and health researchers routinely analyze data on food-related behaviors to understand potential relationships between the food environment and diet. Analytical uncertainties arise, however, from discounting the sequential connections and household coordination of various food tasks. This study employed the time-geographic construct of the project, which is defined as a series of goal-oriented activities conducted by one or more individuals, to understand the composition and influencing factors of household food provision. To demonstrate the usefulness of the project concept, this study delineated how food activities were woven into a select couple’s daily life paths with the aid of sequence visualizations, and developed an analytical test case using time-use diaries of coupled adults living in Toronto, Canada. Ten dinner project archetypes were identified with distinct characteristics of activity composition and coordination. The study further explored how the dinner project archetypes were related to geographic food environments and meal consumption. By employing the project concept in research on food environments, the interconnectedness between various diet-related activities and diverse patterns of coordination between household members can be captured. Finally, a discussion on how the project perspective can improve the understanding of food environments and healthy eating was presented.

Does ageing make life simpler? The dynamics, covariates, and implications of complexity of time-use patterns in late adulthood

Ageing affects individuals’ daily behaviours. Functional and social limitations increase, while the pool of possible activities and individuals’ ability to switch between tasks decline. If older adults lose ability to perform certain activities and do not substitute them with others, the complexity of their daily time-use sequences will decline. Studies show that having less complex behaviours and being in less complex environments are associated with poorer cognitive performance, worse intellectual functioning, and lower wellbeing. This study looks at complexity of everyday time-use patterns of older adults, aged 65 and above. A pooled sample of 25,495 time-use diaries came from four nationally representative time-use surveys: German (2012/2013), Polish (2013/2014), Finnish (2009/2010), and British (2014/2015). Using multivariable linear regression we investigated how complexity was related to individuals’ age, gender, education and income, area of residence, household composition, and disability status. Complexity generally declined in later life but its mean levels and the steepness of this decline differed across countries. Controlling for age, complexity was significantly lower for men and lower-educated individuals, as well as for individuals with disabilities and those living in larger households. Most older adults want to live rich and engaged lives. Individuals having significantly less complex sequences may be at an increased risk of functional, cognitive or social decline, and lower overall wellbeing. Looking at sequence complexity may offer unique insight into older adults’ overall functioning in later life.

Culture, children and couple gender inequality

This paper examines how culture impacts within-couple gender inequality. Exploiting the setting of Germany’s division and reunification, I compare child penalties of East Germans who were socialised in a more gender egalitarian culture to West Germans socialised in a gender-traditional culture. Using a household panel, I show that the long-run child penalty on the female income share is 23.9 percentage points for West German couples, compared to 12.9 for East German couples. The arrival of children also leads to a greater increase in the female share of housework and child care for West Germans. I add to the main findings by using time-use diary data from the German Democratic Republic (GDR) and reunified Germany, which provides a rare insight into gender inequality in the GDR and allows me to compare the effect of having children in the GDR to the effects in East and West Germany after reunification. Lastly, I show that attitudes towards maternal employment are more egalitarian among East Germans, but that the arrival of children leads to more traditional attitudes for both East and West Germans. The findings confirm that socialisation has a strong impact on child penalties and that family policies may have an impact on gender inequality through social learning in the long run.