| 1. |
- Almquist, Ylva B., et al.
(författare)
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Childhood friendships and the clustering of adverse circumstances in adulthood - a longitudinal study of a Stockholm cohort
- 2013
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 4:3, s. 180-195
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Tidskriftsartikel (refereegranskat)abstract
- Friendships constitute a central feature of childhood, yet little is known about the developmental significance extending beyond childhood and adolescence. The aim of the present study was therefore to investigate the association between childhood friendships and adult outcomes. Since many outcomes in adulthood go hand in hand, the outcome pattern as a whole was targeted. Based on a longitudinal data material consisting of more than 14,000 individuals born in Stockholm in 1953, a cluster analysis of adult circumstances (1992-2007) was first conducted. Second, the association between three indicators of childhood friendships (1966) and the outcome profiles was analysed by means of multinomial regression analysis. The results indicated that children who lacked leisure time friends and a best friend in the school class had increased risks of ending up in the more adverse clusters as adults, whereas the opposite association was found for those who reported being solitary. The effect of childhood friendships was rather consistent across both single and multiple problems, suggesting that the disadvantages of being without friends in childhood do not accumulate over the life course to any large extent. Generally, the results were the same for males and females. It is concluded that childhood friendships are important for adverse circumstances in adulthood, for both genders. As far as the long-lasting effects of children's friendships involve varying access to social support, school-based interventions should compensate for the scarcity of support following the lack of childhood friends.
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| 2. |
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| 3. |
- Bécares, Laia, et al.
(författare)
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Bi-directional relationships between body mass index and height from three to seven years of age : an analysis of children in the United Kingdom Millennium Cohort Study
- 2016
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Ingår i: Longitudinal and Life Course Studies. - London, England : Society for Longitudinal and Life Course Studies. - 1757-9597. ; 7:1, s. 41-52
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Tidskriftsartikel (refereegranskat)abstract
- Adiposity and height are known to correlate in childhood but it is less clear whether height and weight gain occur in synergy. We investigate the bidirectional relationships between measures of height and body mass index (BMI) - an indicator of adiposity - and their rates of change. The sample comprises singleton children in the Millennium Cohort Study (N = 11,357). Child anthropometrics measured by trained interviewers at ages three, five and seven years (2003-2009) were transformed to standardised scores based on 1990 British Growth Reference data from which piecewise linear models for height and BMI were jointly fitted. At three years of age, zHeight was positively related to subsequent zBMI velocities, whereas zBMI at three years was positively related to zHeight velocity to age five but inversely related to zHeight velocity from five to seven years of age. Age three zBMI predicted zHeight velocity from three to five years more strongly than age three zHeight predicted zBMI velocity over the same period. The rate of change in zHeight was positively correlated with subsequent zBMI velocity and vice versa. This new evidence on the bidirectional relationships between height and BMI velocities sheds light on the early childhood origins of obesity in adulthood and the need to monitor growth as well as weight gain.
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| 4. |
- Blane, David, et al.
(författare)
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Social-biological transitions : how does the social become biological
- 2013
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 4:2
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Tidskriftsartikel (refereegranskat)abstract
- The present discussion paper sets forward a model within the life course perspective of how the social becomes biological. The model is intended to provide a framework for thinking about such questions as how does social class get into the molecules, cells and tissues of the body to produce social class differences in life expectancy and cause of death? A categorisation of social exposures and biological processes is suggested; and some principles governing their inter-relations proposed. The paper ends by suggesting two public health applications of this approach.
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| 5. |
- Blane, David, et al.
(författare)
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What can the life course approach contribute to an understanding of longevity risk?
- 2016
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 7:2, s. 165-196
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Tidskriftsartikel (refereegranskat)abstract
- Longevity risk means living longer than predicted. Attempts to understand longevity risk to date have concentrated on single diseases, usually coronary heart disease, and sought explanations in terms of risk factor change and medical innovation. In an opening paper, David Blane and colleagues point to evidence that suggests changes in positive health also should be considered; and that a life course approach can do so in a way that is socially and biologically plausible. Applying this approach to UK citizens currently aged 85 years suggests that life course research should give priority to trajectories across the whole life course and to the social and material contexts through which each cohort has passed. Testing these ideas will require inter-disciplinary and international comparative research. The opening paper is followed by commentaries from Hans-Werner Wahl, Mark Hayward, Aart Liefbroer and Gita Mishra. Finally Blane and colleagues respond to the points raised by the commentators.
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| 6. |
- Brydsten, Anna, et al.
(författare)
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Linked lives: intergenerational transmission of labour-market pathways between parent dyads and children
- 2024
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 15:3, s. 348-370
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Tidskriftsartikel (refereegranskat)abstract
- While a vast number of studies confirm the transmission of labour-market disadvantages from one generation to the next, less is known about how parents' interconnected labour-market pathways co-evolve and shape the opportunities and obstacles for their children's future careers. This study uses a multidimensional view of intergenerational transmission by describing the most typical pathways of parents' occupational careers and assesses how these patterns are associated with their children's labour-market outcomes. Drawing on Swedish longitudinal register data, we used multichannel sequence analysis to follow a cohort of people born in 1985 (n = 72,409) and their parents across 26 years. We identified four parental earning models, differentiating between (1) dual earners with high wages, (2) dual earners with low-wage, (3) one-and-a-half-earners and (4) mother as the main breadwinner. Regression analysis shows strong intergenerational transmission among the most advantageous trajectories, with education as a key determinant for young people to become less dependent on family resources. This study stresses the importance of intra-couple perspectives in life course research to understand how inequalities are shaped and preserved across generations.
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| 7. |
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| 8. |
- Dekhtyar, Serhiy, et al.
(författare)
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Associations of head circumference at birth with earlylife school performance and later-life occupational prestige
- 2015
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 6:1, s. 26-42
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Tidskriftsartikel (refereegranskat)abstract
- Head circumference at birth has been suggested as a marker of foetal brain development. New-borns with small head size have been shown to have lower intelligence scores in childhood. It is, however, unclear whether this relationship extends into adult life, and more importantly, whether adult status attainment and lifetime success is affected as a result. Furthermore it is unclear how social origin at birth attenuates the relationship between foetal brain development, childhood cognitive outcomes, and lifetime status attainment. Using the Uppsala Birth Cohort Multigenerational Study, a unique population-based database of 14,192 individuals followed from birth into advanced old age, we demonstrate that those born with small head circumference experience reductions in both early-life school performance and lifetime occupational prestige. These effects are not subject to modification by parental social class: small head size at birth is associated with lower grades and lower occupational prestige among individuals born into both advantaged and disadvantaged social classes. Employing causal mediation analysis, we also demonstrate that the link between head circumference at birth and adult occupational prestige is mainly the result of a direct effect, although a portion of this effect is also mediated by early-life school performance which also contributes to occupational attainment trajectories. These findings demonstrate the importance of early-life environments for cognitive development as well as lifetime status attainment.
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| 9. |
- Delpierre, Cyrille, et al.
(författare)
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Origins of heath inequalities : the case for Allostatic Load
- 2016
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 7:1, s. 79-103
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Tidskriftsartikel (refereegranskat)abstract
- In an opening paper Delpierre et al. explore the concept of allostatic load. The impact of the environment on our biological systems is summarised by the concept of embodiment. The biological embedding of social conditions could therefore be a relevant mechanism to partly explain the social gradient in health. A key issue is how to measure the 'physiological reality' the biological expression of embodiment at individual and population levels. Allostatic load (AL) has been proposed as a measure of the overall cost of adapting to the environment and may be a relevant tool or concept for measuring the way we have embodied our environment. Social inequalities in health may be partly explained by the embodiment of social environments, and AL may allow us to measure and compare embodiment between socioeconomic groups. However, before operationalising AL, a number of issues deserve further exploration. Among these, the choice of biological systems, and variables within each system, that should be included to remain 'loyal' to the theory of biological multisystem wastage underlying AL and the most appropriate methodological approach to be used to build an AL score, are particularly important. Moreover, studies analysing the link between adverse environments (physical, chemical, nutritional, psychosocial) across the life course and AL remain rare. Such studies require cohorts with data on socioeconomic and psychosocial environments over the life course, with multiple biological measures, made at various stages across the life span. The development and maintenance of these cohorts is essential to continue exploring the promising results that could enhance our understanding of the genesis of the social gradient in health by measuring embodiment. These points are then debated in commentaries by Linn Getz and Margret Olafia Tomasdottir, Tony Robertson and Per Gustafson. The commentaries are followed by a response from the authors of the opening paper.
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| 10. |
- Ecker, Kreske, et al.
(författare)
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Regional differences in initial labour market conditions and dynamics in lifetime income trajectories
- 2022
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 13:3, s. 352-379
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Tidskriftsartikel (refereegranskat)abstract
- We use longitudinal register data from Sweden to study patterns and dynamics in lifetime income trajectories. We examine divergences in these income trajectories by local economic conditions at labour market entry, in combination with other factors such as gender, education level and socio-economic background. We cannot assume that these relationships are constant over the course of individuals’ working lives. Therefore, we use methods from functional data analysis, allowing for a time-varying relationship between income and the explanatory variables. Our results show a large degree of heterogeneity in how lifetime income trajectories develop for different subgroups. We find that, for men, entering the labour market in an urban area is associated with higher cumulative lifetime income, especially later in life. The exception is men with only primary education, for whom those starting their working lives in a large city have lower incomes on average. This divergence increases in size over time. Women who enter into a large urban labour market receive higher lifetime income at all education levels. This relationship is strongest for women with primary education but decreases in strength over time for these women.
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| 11. |
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| 12. |
- Helske, Satu, et al.
(författare)
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Partnership formation and dissolution over the life course : applying sequence analysis and event history analysis in the study of recurrent events
- 2015
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Ingår i: Longitudinal and Life Course Studies. - London, United Kingdom : Society for Longitudinal and Life Course Studies. - 1757-9597. ; 6:1, s. 1-25
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Tidskriftsartikel (refereegranskat)abstract
- We present two types of approach to the analysis of recurrent events for discretely measured data, and show how these methods can complement each other when analysing co-residential partnership histories. Sequence analysis is a descriptive tool that gives an overall picture of the data and helps to find typical and atypical patterns in histories. Event history analysis is used to make conclusions about the effects of covariates on the timing and duration of the partnerships. As a substantive question, we studied how family background and childhood socio-emotional characteristics were related to later partnership formation and stability in a Finnish cohort born in 1959. We found that high self-control of emotions at age 8 was related to a lower risk of partnership dissolution and for women a lower probability of repartnering. Child-centred parenting practices during childhood were related to a lower risk of dissolution for women. Socially active boys were faster at forming partnerships as men.
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| 13. |
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| 14. |
- Heshmati, Amy, et al.
(författare)
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Socio-economic position at four time points across the life course and all-cause mortality : updated results from the Uppsala Birth Cohort Multigenerational Study
- 2020
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Ingår i: Longitudinal and Life Course Studies. - 1757-9597. ; 11:1, s. 27-54
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Tidskriftsartikel (refereegranskat)abstract
- Socio-economic position (SEP) is associated with all-cause mortality across all stages of the life course; however, it is valuable to distinguish at what time periods SEP has the most influence on mortality. Our aim was to investigate whether the effect of SEP on all-cause mortality accumulates over the life course or if some periods of the life course are more important. Our study population were from the Uppsala Birth Cohort Multigenerational Study, born 1915–29 at Uppsala University Hospital, Sweden. We followed 3,951 men and 3,601 women who had SEP at birth available, during childhood (at age ten), in adulthood (ages 30–45) and in later life (ages 50–65) from 15 September 1980 until emigration, death or until 31 December 2010. We compared a set of nested Cox proportional regression models, each corresponding to a specific life course model (critical, sensitive and accumulation models), to a fully saturated model, to ascertain which model best describes the relationship between SEP and mortality. Analyses were stratified by gender. For both men and women the effect of SEP across the life course on all-cause mortality is best described by the sensitive period model, whereby being advantaged in later life (ages 50–65 years) provides the largest protective effect. However, the linear accumulation model also provided a good fit of the data for women suggesting that improvements in SEP at any stage of the life course corresponds to a decrease in all-cause mortality.
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| 15. |
- Huschek, Doreen, et al.
(författare)
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Parental criminality and children’s family-life trajectories : Findings for a mid-20th century cohort
- 2015
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 6:4, s. 379-396
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Tidskriftsartikel (refereegranskat)abstract
- The paper analyses the family life courses of sons and daughters from families with low socioeconomic status and at high risk to offend. For this Dutch cohort (N=522), born on average in 1932, register and archive data on offending and family-life events from age 18 to 50 years are investigated. We discuss different mechanisms of how parental criminality may affect demographic behaviours, such as marriage and parenthood. As these demographic behaviours are interlinked, and as their ordering is meaningful, we apply a holistic approach by using sequence and cluster analysis to construct family-life courses. Findings indicate four family-life trajectories that are almost similar for the sons and daughters, although criminal fathers appear to affect sons’ and daughters’ trajectories differently. Daughters’ family-life trajectories seem directly affected by father’s offending whereas sons’ trajectories are only affected by their own juvenile offending.
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| 16. |
- Kalucza, Sara, 1987-
(författare)
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Mental health problems and social disadvantages as predictors of teenage parenthood : a register-based population study of Swedish boys and girls
- 2018
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 9:2, s. 212-225
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Tidskriftsartikel (refereegranskat)abstract
- It has been argued that the relationship between mental health and teenage parenthood might be explained by the connection of social disadvantage and mental health. This paper embraces a life course approach and investigates the link between social and health disadvantages and teenage parenthood in Sweden, in attempt to disentangle experiences of early mental health problems from other social disadvantage factors. The research questions were explored through random intercept logistic models for panel data. The data for this study consists of all individuals born in Sweden between 1989 and 1994, drawn from Swedish population registers. The final models comprised 680,848 individuals who were followed throughout their teenage years. The results show that mental health problems in youth function as an independent predictor of teenage parenthood, even after adjusting for other social disadvantage factors. This observation applies for both boys and girls. Activities aimed at increasing the perceived life opportunities of youth and giving significance to life may be considered as means of preventing teenage parenthood through policy. This study suggests that such activities could be extended to include teenagers with mental health problems.
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| 17. |
- Kelfve, Susanne, et al.
(författare)
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Getting better all the time? Selective attrition and compositional changes in longitudinal and life course studies
- 2017
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 8:1, s. 104-119
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Tidskriftsartikel (refereegranskat)abstract
- Longitudinal surveys are valuable tools for investigating health and social outcomes across the life course. In such studies, selective mortality leads to changes in the social composition of the sample, but little is known about how selective survey participation affects the sample composition, in addition to the selective mortality. In the present paper, we followed a Swedish cohort sample over six waves 1968-2011. For each wave we recalculated the distribution of baseline characteristics in the sample among i) the sample still alive and ii) the sample still alive and with complete follow-up. The results show that the majority of the compositional changes in the cohort were modest and driven mainly by mortality. However, for some characteristics, class in particular, the selection was considerable and in addition, was substantially compounded by survey non-participation. We suggest that sample selections should be taken into account when interpreting the results of longitudinal studies, in particular when researching social inequalities.
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| 18. |
- Lahtinen, Hannu, et al.
(författare)
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Changes in sibling similarity in education among Finnish cohorts born in 1950–89 : the contribution of paternal and maternal education
- 2022
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Ingår i: Longitudinal and Life Course Studies. - 1757-9597. ; 13:4, s. 496-526
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Tidskriftsartikel (refereegranskat)abstract
- Among the many social characteristics that run in the family, education is one of the most strongly persistent. The long-term changes in educational reproduction within families and across generations and the gender-specific drivers of these changes remain partially unclear. Using population data for all Finnish siblings and their parents, we assessed the level of and trends in the intergenerational persistence of education among cohorts born between 1950 and 1989. The variance in education shared among siblings was 37% and remained stable over time. Parental education steadily increased its explanatory power in the shared variance, from 30% among cohorts born in the 1950s to 40% among cohorts born in the 1970s and 1980s. The direct contribution of maternal education net of paternal education for sibling similarity more than doubled across cohorts (from 5% in 1950 to 13% in 1989). The direct contribution of paternal education (10–12%) remained stable. Same-gender siblings resembled each other in education more closely than their opposite-gender counterparts. The growing importance of maternal education over time, which surpasses the predictive power of paternal education, demonstrates an important qualitative change in the determinants of educational stratification. The growing importance of mothers’ education can plausibly result from the strengthening meritocratic achievement of women in education and the associated increase of women in defining the social position of the family. Incorporating the education of both parents in future analyses of intergenerational reproduction of education will probably be increasingly salient.
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| 19. |
- Mishra, Gita D., et al.
(författare)
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MatCH (Mothers and their Children's Health) Profile : Offspring of the 1973-78 Cohort of the Australian Longitudinal Study on Women's Health
- 2018
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 9:3, s. 351-375
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Tidskriftsartikel (refereegranskat)abstract
- MatCH (Mothers and their Children's Health) is a nationwide Australian study to investigate the links between the history of health, wellbeing and living conditions of mothers and the health and development of their children. MatCH builds on the Australian Longitudinal Study on Women's Health (ALSWH), which began in 1996 and has surveyed more than 58,000 women in four nationally representative age cohorts. MatCH focuses on the three youngest offspring of the cohort of ALSWH participants randomly sampled from all women in Australia born in 1973-78 (N=5780 children of N=3039 mothers). These women, who had completed up to seven postal or online surveys since 1996, were invited in 2016-17 to complete surveys about the health and development of their three youngest children aged under 13. The mothers reported on their children's health conditions and symptoms, diet, anthropometric measures, childcare, screen time, physical activity, temperament, behaviour, language development, motor development and health service utilisation, as well as household and environmental factors. These data are being linked with each child's records from official sources including the Australian Early Development Census (collected at age five to six), the National Assessment Program-Literacy and Numeracy (collected at age eight, 10, 12 and 14) and other external datasets. MatCH will combine 20 years of maternal data with all the information on her children, taking into account the family setting. MatCH offers an unprecedented opportunity to advance our understanding of the relationship between maternal health and wellbeing and child health and development.
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| 20. |
- Montgomery, Scott M., et al.
(författare)
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Sex differences in childhood hearing impairment and adult obesity
- 2010
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Ingår i: Longitudinal and Life Course Studies. - 1757-9597. ; 1:4, s. 359-370
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Tidskriftsartikel (refereegranskat)abstract
- Some adult neurological complications of obesity may have early-life origins. Here, we examine associations of childhood hearing impairment with childhood and adult obesity, among 3288 male and 3527 female members of a longitudinal cohort born in Great Britain in 1970. Height and weight were measured at age 10 years and self-reported at 34 years. Audiometry was conducted at age 10 years. The dependent variable in logistic regression was minor bilateral hearing impairment as a marker of systemic effects, while BMI at age 10 or 34 years were modelled as independent variables with adjustment for potential confounding factors including social class, maternal education and pubertal development at age 10 years. Among females, the adjusted odds ratios (and 95% confidence intervals) for hearing impairment at age 10 years were 2.33 (1.36-3.98) for overweight/obesity; and at age 34 years they were 1.71 (1.00-2.92) for overweight and 2.73 (1.58-4.71) for obesity and the associations were not explained by Childhood BMI at age 10 years. There were no consistent associations among males and interaction testing revealed statistically significant effect modification by sex. The dose-dependent associations among females are consistent with childhood origins for some obesity-associated impaired neurological function and the possible existence of a 'pre-obese syndrome'. The accumulation of risks for poorer health among those who become obese in later life begins in childhood. Childhood exposures associated with bilateral hearing impairment are risks for obesity in later life among females.
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| 21. |
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| 22. |
- Montgomery, Scott, 1961-, et al.
(författare)
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Sex of older siblings and stress resilience
- 2018
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Ingår i: Longitudinal and Life Course Studies. - : Society for Longitudinal and Life Course Studies. - 1757-9597. ; 9:4, s. 447-455
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Tidskriftsartikel (refereegranskat)abstract
- The aim was to investigate whether older siblings are associated with development of stress resilience in adolescence and if there are differences by sex of siblings. The study used a Swedish register-based cohort of men (n=664 603) born between 1970 and 1992 who undertook military conscription assessments in adolescence that included a measure of stress resilience: associations were assessed using multinomial logistic regression. Adjusted relative risk ratios (95% confidence intervals) for low stress resilience (n=136 746) compared with high (n=142 581) are 1.33 (1.30, 1.35), 1.65 (1.59, 1.71) and 2.36 (2.18, 2.54) for one, two and three or more male older siblings, compared with none. Equivalent values for female older siblings do not have overlapping confidence intervals with males and are 1.19 (1.17, 1.21), 1.46 (1.40, 1.51) and 1.87 (1.73, 2.03). When the individual male and female siblings are compared directly (one male sibling compared with one female sibling, etc.) and after adjustment, including for cognitive function, there is a statistically significant (p<0.005) greater risk for low stress resilience associated with male siblings. Older male siblings may have greater adverse implications for psychological development, perhaps due to greater demands on familial resources or inter-sibling interactions.
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| 23. |
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| 24. |
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| 25. |
- Rajaleid, Kristiina, 1978-, et al.
(författare)
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Parental and family determinants of the Flynn effect
- 2023
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Ingår i: Longitudinal and Life Course Studies. - : Bristol University Press. - 1757-9597. ; 14:4, s. 469-491
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Tidskriftsartikel (refereegranskat)abstract
- Research about the Flynn effect, the secular rise in IQ, is heavily based on conscript data from successive male birth cohorts. This inevitably means that two distinct phenomena are mixed: fertility differences by IQ group ('compositional Flynn effect'), and any difference between parents and children ('within-family Flynn effect'). Both will influence trends in cognitive ability. We focused on the latter phenomenon, exploring changes in cognitive abilities during adolescence within one generation, and between two successive generations within the same family. We identified determinants and outcomes in three linked generations in the Stockholm Multigenerational Study. School and conscript data covered logical/numerical and verbal scores for mothers at age 13, fathers at 13 and 18, and their sons at 18. Raw scores, and change in raw scores, were used as outcomes in linear regressions. Both parents' abilities at 13 were equally important for sons' abilities at 18. Boys from disadvantaged backgrounds caught up with other boys during adolescence. Comparing fathers with sons, there appeared to be a positive Flynn effect in logical/numeric and verbal abilities. This was larger if the father had a working-class background or many siblings. A Flynn effect was only visible in families where the father had low general cognitive ability at 18. We conclude that there is a general improvement in logical/numeric and verbal skills from one generation to the next, primarily based on improvement in disadvantaged families. The Flynn effect in Sweden during the later 20th century appears to represent a narrowing between social categories.
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