How does social capital matter to the health status of older adults? Evidence from the China Health and Retirement Longitudinal Survey

This paper uses longitudinal data from China to examine the causal relationship between structural social capital and health among Chinese older adults. We employ various econometric strategies to control for the potential endogeneity of social capital and account for the possible contextual confounding effects by including community-level social capital. We use three indicators to measure individuals’ general, physical, and mental health. Results indicate that social capital has a significant and positive effect on general and physical health. Based on our primary IV findings, a one standard-deviation increase in social capital leads to a 4.9 standard-deviation decrease in the probability of having bad health and a 2.2 standard-deviation decrease in physical activity limitations. Our results are robust to a series of sensitivity checks. Further analysis suggests heterogeneous effects by age but not by gender or area of residence.     

Social media use and emotional and behavioural outcomes in adolescence: Evidence from British longitudinal data

We investigate the relationship between social media use and emotional and behavioural outcomes in adolescence using data from a large and detailed longitudinal study of teenagers from the UK. We use individual fixed effects, propensity score matching and treatment effects with Inverse Probability Weighted Regression Adjustment, controlling for a rich set of children’s and family’s characteristics and using comprehensive sensitivity analyses and tests to assess the potential role of unobserved variables. Our results show that prolonged use of social media (more than 4 hours per day) is significantly associated with poor emotional health and increased behavioural difficulties, and in particular decreased perception of self-value and increased incidence of hyperactivity, inattention and conduct problems. However, limited use of social media (less than 3 h per day) compared to no use has some moderate association with positive peer relationships.     

The socioeconomic gradient in child health and noncognitive skills: Evidence from the Czech Republic

We investigate the presence of a socioeconomic status (SES) gradient in children’s health and noncognitive skill development, and its evolution with child age using cohort data from the Czech Republic. We show that family SES are positively associated with better child health. These effects start to emerge at age 3 and are persistent for all subsequent ages. We find a modest strengthening of the gradient as the children grow older. Similarly, at the lowest distribution of average family income, children lag in their noncognitive skills. We find evidence that children enter school with substantial differences in noncognitive skill endowments based on family SES. This correlation persists when controlling for poor health at birth, the roles of specific and chronic health problems, housing conditions, and partner characteristics. Maternal health status explains some of the association between family income and child noncognitive skills. We account for the endogeniety of SES and non-linearities in measures.     

Access to health services for immigrants in the USA: from the Great Society to the 2010 Health Reform Act and after

Abstract

Over the last fifty years the nature of the provision and financing of health services, and the composition of the foreign-born population in the USA have both evolved significantly. The rapid growth of Mexican immigration in the last fifteen years has created new challenges. Ironically, the Patient Protection and Affordable Care Act of 2010, the sweeping legislation designed to ensure that almost all Americans can obtain health insurance, may reduce access to care for many immigrants by isolating them from the general, formerly uninsured, population. Bi-national and cross-border initiatives between the USA and Mexico along the lines of some developments in Europe are worth encouraging to help ease the current and future barriers to health care for immigrants.     

The Ethics of Engaged Presence: A Framework for Health Professionals in Humanitarian Assistance and Development Work

In this article, we present an ethics framework for health practice in humanitarian and development work: the ethics of engaged presence. The ethics of engaged presence framework aims to articulate in a systematic fashion approaches and orientations that support the engagement of expatriate health care professionals in ways that align with diverse obligations and responsibilities, and promote respectful and effective action and relationships. Drawn from a range of sources, the framework provides a vocabulary and narrative structure for examining the moral dimensions of providing development or humanitarian health assistance to individuals and communities, and working with and alongside local and international actors. The elements also help minimize or avoid certain miscalculations and harms. Emphasis is placed on the shared humanity of those who provide and those who receive assistance, acknowledgement of limits and risks related to the contributions of expatriate health care professionals, and the importance of providing skillful and relevant assistance. These elements articulate a moral posture for expatriate health care professionals that contributes to orienting the practice of clinicians in ways that reflect respect, humility, and solidarity. Health care professionals whose understanding and actions are consistent with the ethics of engaged presence will be oriented toward introspection and reflective practice and toward developing, sustaining and promoting collaborative partnerships.     

The relative exclusion of zinc and iron from rice grain in relation to rice grain cadmium as compared to soybean: Implications for human health

During 2000–2002, diagnostic rice and soybean plant samples and concurrent soil samples were collected from cultivated fields within a geo-physically unique Zn/Cd co-contaminated location in Thailand. For the fields sampled, aqua regia-digested Zn and Cd concentrations ranged from 2.91–284 and 254–8036 mg kg^–1, respectively. In comparison, rice and soybean Cd concentrations ranged from 0.02–5.00 and 1.08–1.71 mg kg^–1, respectively. Further, the results indicate that grain Cd, Zn and Fe concentrations are in the order rice^Gr=soybean^Gr, soybean^Gr>rice^Gr, soybean^Gr>rice^Gr, respectively. However, and critically from a human health perspective, Cd:Zn and Cd:Fe ratios are in the order rice^Gr>soybean^Gr. In addition, the rice^Gr Cd:Fe ratio is an order of magnitude higher than that determined for soybean^Gr. The results of this study, clearly demonstrate that compared to rice stalk (rice^St) and rice leaf (rice^L), rice^Gr accumulates comparatively higher Cd than Zn and Fe thus resulting in the high rice^Gr Cd:Zn and Cd:Fe ratios. This is in direct contrast to the results observed for soybean.