Ecological Transitions of U.S. Elementary School Students: Their Short– and Long–Term Educational Outlooks

In this dissertation, I identify different types of U.S. elementary school students experiencing ecological transitions and examine their characteristics. Then, I investigate the short-term and long-term educational outlooks of these ecological transition groups from birth through their 5th-grade. The main research questions are: Which are the characteristics of students experiencing each type of ecological transition? What short–term associations exist between different types of ecological transitions and students’ academic achievement during the elementary school grades? What long–term associations exist between students’ ecological transition histories and their academic achievement growth? To address these questions I used data from the public use files of the Early Childhood Longitudinal Study — Kindergarten Cohort 1998 (ECLS–K 1998). I extracted five lagged (two time points at the time) analytic samples to investigate associations between ecological transitions and the grade–by–grade change in learning, and one longitudinal analytic sample to examine the links of ecological transition histories to students’ achievement growth across the elementary school grades, from kindergarten to the 5th–grade. The main results show that the characteristics of students change across types of ecological transition and, to some extent, they also change over time. Overall, movers and leavers appear more disadvantaged than stayers, structural changers and volitional changers. However, over time ‘volitional changer’ identifies a disadvantaged group of students. Academic achievement is associated with ecological transitions in the short–term but not in the long–term. Moreover, ecological transitions are positively associated with academic achievement growth in early elementary grades, whereas they are negatively linked with achievement growth in later elementary grades. Academic achievement appeared to be more closely linked to school changes than to residential moves. These findings suggest that for the general population of elementary school students, any effects of ecological transitions may be almost exclusively temporary. Educators and policy makers, however, should consider that even short–term consequences for students may result in long–term consequences for schools, when faced with a constant flow of transfer students. Families and schools should cooperate to facilitate students’ post–transition adjustment to their new settings, to encourage academic success for students and limit the negative consequences of student turnover for schools

Does Residential Mobility Affect Child Development at Age Five? A Comparative Study of Children Born in US and UK Cities

Residential mobility is a normal feature of family life but thought to be a source of disruption to a child's development. Mobility may have its own direct consequences or reflect families' capabilities and vulnerabilities. This article examines the association between changes of residence and verbal and behavioral scores of children aged 5, contributing to the literature in three ways. First, it compares two countries, by drawing on the Fragile Families and Child Wellbeing study in the United States (N = up to 1,820) and an urban subsample of the U.K. Millennium Cohort study (N = up to 7,967). Second, beside taking into account an extensive range of demographic characteristics, it applies inverse probability weights to minimize observable selection bias associated with residential mobility and further controls for a wide range of family changes that often co-occur with moves. Third, the article adds to extant research on residential mobility by incorporating the type of locality from and into which families move. Individual-level longitudinal data are linked to objective measures of neighborhood socioeconomic status to gauge the quality of moves families make. Results show that residential moves are not inevitably deleterious to children. In both countries the poorer outcomes of some moves result not from moving per se but rather from the context in which they occur

Home moves and child wellbeing in the first five years of life in the United States

By the time they are five years old, nearly 70% of children in the United States have moved home, with a substantial minority moving more than once.  These early years are important for children’s later learning and development. Yet, there are a limited number of studies of residential mobility’s impact on young children.  The literature indicates the importance of stressful family events, unstable housing, economic hardship, and neighbourhood conditions for residential mobility and child wellbeing. But research seldom examines the impact of these dimensions simultaneously.  We used data from the first four waves of the Fragile Families and Child Wellbeing Study to analyse precursors of residential mobility and the association of residential mobility with child behavior (N=2,511) and cognitive capabilities (N=2,033) at age five.  Using Generalized Estimating Equations (GEE), we find that the frequency of moving is explained by a range of stressful circumstances, including lack of parental employment, partnership transitions, paternal incarceration, unstable housing tenure, and financial hardship.  These circumstances are associated with increased likelihood of moving home even when other family and neighbourhood conditions are controlled, suggesting that moving is part of a constellation of events and changes experienced by young children.  Using OLS regression models we find that, for young children, the circumstances associated with moving residence appear to be more consequential for child wellbeing than does moving itself, even when children experience multiple moves.

Neighborhood and Child Development at Age Five: A UK–US Comparison

Early childhood is a critical period in the life course, setting the foundation for future life. Early life contexts—neighborhoods and families—influence developmental outcomes, especially when children are exposed to economic and social disadvantage. Residential mobility, frequent among families with pre-school children, may reduce or increase exposure to adverse surroundings. We examine children’s cognitive and behavioral outcomes at age five, in relation to neighborhood composition, family circumstances and residential moves, using two longitudinal micro datasets: an urban subsample of the UK Millennium Cohort Study (N up to 7967), and the Fragile Families and Child Wellbeing Study in the US (N up to 1820). Each is linked to an index of neighborhood advantage, created to make UK/US comparisons, based on census and administrative information. A series of estimates indicate a strong association, in both countries, between cognitive scores and neighborhood advantage, attenuated but not eliminated by family circumstances. Children’s behavior problems, on the other hand, show less association with neighborhood advantage. There are minor and mixed differences by residential mobility particularly when neighborhood disadvantage changes. Notwithstanding the primacy of the family in predicting preschool development, the findings support the notion of neighborhood as potentially advantageous at least in relation to cognitive outcomes

Effects of pre-operative isolation on postoperative pulmonary complications after elective surgery: an international prospective cohort study an international prospective cohort study

We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26,948 (27.9%) patients isolated before surgery. Postoperative pulmonary complications were recorded in 1947 (2.0%) patients of which 227 (11.7%) were associated with SARS-CoV-2 infection. Patients who isolated pre-operatively were older, had more respiratory comorbidities and were more commonly from areas of high SARS-CoV-2 incidence and high-income countries. Although the overall rates of postoperative pulmonary complications were similar in those that isolated and those that did not (2.1% vs 2.0%, respectively), isolation was associated with higher rates of postoperative pulmonary complications after adjustment (adjusted OR 1.20, 95%CI 1.05–1.36, p = 0.005). Sensitivity analyses revealed no further differences when patients were categorised by: pre-operative testing; use of COVID-19-free pathways; or community SARS-CoV-2 prevalence. The rate of postoperative pulmonary complications increased with periods of isolation longer than 3 days, with an OR (95%CI) at 4–7 days or ≥ 8 days of 1.25 (1.04–1.48), p = 0.015 and 1.31 (1.11–1.55), p = 0.001, respectively. Isolation before elective surgery might be associated with a small but clinically important increased risk of postoperative pulmonary complications. Longer periods of isolation showed no reduction in the risk of postoperative pulmonary complications. These findings have significant implications for global provision of elective surgical care. We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26,948 (27.9%) patients isolated before surgery. Postoperative pulmonary complications were recorded in 1947 (2.0%) patients of which 227 (11.7%) were associated with SARS-CoV-2 infection. Patients who isolated pre-operatively were older, had more respiratory comorbidities and were more commonly from areas of high SARS-CoV-2 incidence and high-income countries. Although the overall rates of postoperative pulmonary complications were similar in those that isolated and those that did not (2.1% vs 2.0%, respectively), isolation was associated with higher rates of postoperative pulmonary complications after adjustment (adjusted OR 1.20, 95%CI 1.05–1.36, p = 0.005). Sensitivity analyses revealed no further differences when patients were categorised by: pre-operative testing; use of COVID-19-free pathways; or community SARS-CoV-2 prevalence. The rate of postoperative pulmonary complications increased with periods of isolation longer than 3 days, with an OR (95%CI) at 4–7 days or ≥ 8 days of 1.25 (1.04–1.48), p = 0.015 and 1.31 (1.11–1.55), p = 0.001, respectively. Isolation before elective surgery might be associated with a small but clinically important increased risk of postoperative pulmonary complications. Longer periods of isolation showed no reduction in the risk of postoperative pulmonary complications. These findings have significant implications for global provision of elective surgical care