Childhood Peer Status and the Clustering of Adverse Living Conditions in Adulthood

Within the context of the school class, children attain a social position in the peer hierarchy to which varying amounts of status are attached. Several studies have shown that children’s peer status is associated with a wide range of social and health-related outcomes. These studies commonly target separate outcomes, paying little attention to the fact that such circumstances are likely to go hand in hand. The overarching aim of the present study was therefore to examine the impact of childhood peer status on the clustering of living conditions in adulthood. Based on a 1953 cohort born in Stockholm, Sweden, multinomial regression analysis demonstrated that children who had lower peer status also had exceedingly high risks of ending up in more problem-burdened clusters as adults. Moreover, these associations remained after adjusting for a variety of family-related circumstances. We conclude that peer status constitutes a central aspect of children’s upbringing with important consequences for subsequent life chances, over and above the influences originating from the family.childhood; peer status; cohort; life course; outcome profiles; living conditions

Total thyroidectomy: reduction in postoperative hypoparathyroidism

Objective: Total thyroidectomy is associated with a high risk of postoperative hypoparathyroidism, mainly due to the unintended surgical damage to the parathyroid glands or their blood supply. It is possible that surgeons who also perform parathyroid surgery see lower rates of postoperative hypoparathyroidism. In a single institution, we investigated the effects of restricting total thyroidectomy oper ations for Graves’ disease to two surgeons who performed both thyroid and parathyroid surgeries. We aimed to evaluate the rates of postoperative hypoparathyroidism in a 10-year period with primary attention toward patients with Graves’ disease. Design: Retrospective cohort study from a single institution. Methods: We defined the rate of permanent hypoparathyroidism after total thyroidectomy as the need for active vitamin D 6 months postoperatively. Between 2012 and 2016, seven surgeons performed all thyroidectomies. From January 2017, only surgeons also performing parathyroid surgery carried out thyroidectomies for Graves’ disease. Results: We performed total thyroidectomy in 543 patients. The rate of permanent hypoparathyroidism decreased from 28% in 2012–2014 to 6% in 2020–2021. For patients with Graves’ disease, the rate of permanent hypoparathyroidism decreased from 36% (13 out of 36) in 2015–2016 to 2% (1 out of 56) in 2020–2021. In cancer patients, the rate of permanent hypoparathyroidism decreased from 30% (14 out of 46) in 2012–2014 to 10% (10 out of 51) in 2020–2021. Conclusion: Restricting thyroidectomy to surgeons who also performed parathyroid operations reduced postoperative hypoparathyroidism markedly. Accordingly, we recommend centralisation of the most difficult thyroid operations to centres and surgeons with extensive experience in parathyroid surgery. Significance statement: Thyroid surgery is performed by many different surgeons with marked differences in outcome. Indeed, the risk of postoper ative permanent hypoparathyroidism may be very high in low-volume centres. This serious condition affects the quality of life and increases long-term morbidity and the patients develop a life-long dependency of medical treatments. We encountered a high risk of hypoparathyroidism after the operation for Graves’ disease and restricted the number of surgeons to two for these operations. Further, these surgeons were experienced in both thyroid and parathyroid surgeries. We show a dramatic reduction in postoperative hypoparathyroidism after this change. Accordingly, we recommend centralisation of total thyroidectomy to surgeons with experience in both thyroid and parathyroid procedures

Up in the Air: A Global Estimate of Non-Violent Drone Use 2009-2015

The use of unmanned aerial vehicles (UAVs), or drones, has increased dramatically in recent years. While most attention has gone to military drone use, commercial drones have gained widespread popularity, with uses ranging from leisure activities by hobbyists to humanitarian aid and disaster relief support by non-governmental organizations (NGOs) and activist groups. This use has been hard to quantify and regulate. In an effort to better understand the rapid growth of non-weaponized drone, this report analyzes cases of worldwide drone use reported during a six-year period (2009-2015). Utilizing a combination of qualitative and quantitative methods, we engage two distinct research questions: (1) what is the nature of civilian drone use over time, and (2) what regulatory responses exist to use at the international, state, and sub-state levels. This six-year window generated more than 15,000 news items for analysis, and resulted in a dataset of 1,145 unique uses. The findings are in line with popular reports: drone usage has grown significantly. New platforms in civilian hands are challenging the status quo response of both regulators and human rights groups. While ethical considerations make direct comparisons nearly useless, non-military use has eclipsed military use. This reality poses fresh challenges to national governments, local municipalities, businesses, and individual actors.https://digital.sandiego.edu/gdl2016report/1000/thumbnail.jp

Evaluating the Performance of Scandinavian Mergers and Acquisitions - Evidence from Divestitures

In this thesis, we compile a data set of divestments based on almost 200 mergers and acquisitions in the Scandinavian countries between 2000 and 2011 and then use the data set to assess and classify the long-term success of the original mergers and acquisitions. By the end of 2019, we document that more than 25% of the acquirers had divested the original merger or acquisition. Of these, 31% is considered to be successful divestitures. In the second part of this thesis, we use the findings on long-term success to evaluate market expectations about firm performance at the time of merger and acquisitions announcement. By applying traditional performance measures such as abnormal returns, cumulative abnormal returns, and Tobin's Q, we find that the acquirer’s returns are significantly lower for those firms which subsequently divest and are classified as unsuccessful than for the divestments which we classify as successful and for M&As which are not divested. The overall findings suggest that many of the original mergers and acquisitions should have been avoided in the first place

Childhood Peer Status and the Clustering of Adverse Living Conditions in Adulthood

Within the context of the school class, children attain a social position in the peer hierarchy to which varying amounts of status are attached. Several studies have shown that children’s peer status is associated with a wide range of social and health-related outcomes. These studies commonly target separate outcomes, paying little attention to the fact that such circumstances are likely to go hand in hand. The overarching aim of the present study was therefore to examine the impact of childhood peer status on the clustering of living conditions in adulthood. Based on a 1953 cohort born in Stockholm, Sweden, multinomial regression analysis demonstrated that children who had lower peer status also had exceedingly high risks of ending up in more problem-burdened clusters as adults. Moreover, these associations remained after adjusting for a variety of family-related circumstances. We conclude that peer status constitutes a central aspect of children’s upbringing with important consequences for subsequent life chances, over and above the influences originating from the family

Childhood friendships and the clustering of adverse circumstances in adulthood - a longitudinal study of a Stockholm cohort

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

Do trajectories of economic, work- and health-related disadvantages explain child welfare clients' increased mortality risk? A prospective cohort study.

BACKGROUND: Past research has shown that individuals who have had experiences of out-of-home care (OHC) in childhood have increased risks of premature mortality. Prior studies also suggest that these individuals are more likely to follow long-term trajectories that are characterised by economic, work-, and health-related disadvantages, compared to majority population peers. Yet, we do not know the extent to which such trajectories may explain their elevated mortality risks. The aim of this study is therefore to examine whether trajectories of economic, work-, and health-related disadvantages in midlife mediate the association between OHC experience in childhood and subsequent all-cause mortality. METHODS: Utilising longitudinal Swedish data from a 1953 cohort (n = 14,294), followed from birth up until 2008 (age 55), this study applies gender-specific logistic regression analysis to analyse the association between OHC experience in childhood (ages 0-19; 1953-1972) and all-cause mortality (ages 47-55; 2000-2008). A decomposition method developed for non-linear regression models is used to estimate mediation by trajectories of economic, work-, and health-related disadvantages (ages 39-46; 1992-1999), as indicated by social welfare receipt, unemployment, and mental health problems. To account for selection processes underlying placement in OHC, an alternative comparison group of children who were investigated by the child welfare committee but not placed, is included. RESULTS: The results confirm that individuals with experience of OHC have more than a two-fold increased risk of all-cause mortality, for men (OR: 2.10, 95% CI: 1.42-3.11) and women (OR: 2.23, 95% CI: 1.39-3.59) alike. Approximately one-third (31.1%) of the association among men, and one-fourth (27.4%) of the association among women, is mediated by the long-term trajectories of economic, work-, and health-related disadvantages. The group who were investigated but not placed shows similar, yet overall weaker, associations. CONCLUSIONS: Individuals who come to the attention of the child welfare services, regardless of whether they are placed in out-of-home care or not, continue to be at risk of adverse outcomes across the life course. Preventing them from following trajectories of economic, work-, and health-related disadvantages could potentially reduce their risk of premature death

Troubled childhoods cast long shadows : Childhood adversity and premature all-cause mortality in a Swedish cohort

Experiences of childhood adversity are common and have profound health impacts over the life course. Yet, studying health outcomes associated with childhood adversity is challenging due to a lack of conceptual clarity of childhood adversity, scarce prospective data, and selection bias. Using a 65-year follow-up of a Swedish cohort born in 1953 (n = 14,004), this study examined the relationship between childhood adversity (ages 0-18) and premature all-cause mortality (ages 19-65). Childhood adversity was operationalized as involvement with child welfare services, household dysfunction, and disadvantageous family socioeconomic conditions. Survival models were used to estimate how much of the association between child welfare service involvement and mortality could be explained by household dysfunction and socioeconomic conditions. Results show that individuals who were involved with child welfare services had higher hazards of dying prematurely than their majority population peers. These risks followed a gradient, ranging from a hazard ratio of 3.08 (95% CI: 2.68-3.53) among those placed in out-of-home care, followed by individuals subjected to in-home services who demonstrated a hazard ratio of 2.53 (95% CI: 1.93-3.32), to a hazard ratio of 1.81 among those investigated and not substantiated (95% CI: 1.55-2.12). Associations between involvement with child welfare services and premature all-cause mortality were robust to adjustment for household dysfunction and disadvantageous family socioeconomic conditions. Neither household dysfunction nor socioeconomic conditions were related with mortality independent of child welfare services involvement. This study suggests that involvement with child welfare services is a viable proxy for exposure to childhood adversity and avoids pitfalls of self-reported or retrospective measures