Simulating the Effects of Acculturation and Return Migration on the Maternal and Infant Health of Mexican Immigrants in the United States: A Research Note

A significant body of research on minority health shows that although Latino immigrants experience unexpectedly favorable outcomes in maternal and infant health, this advantage deteriorates with increased time of residence in the United States. This study evaluates the underlying assumptions of two competing hypotheses that explain this paradox. The first hypothesis attributes this deterioration to possible negative effects of acculturation and behavioral adjustments made by immigrants while living in the United States, and the second hypothesis attributes this deterioration to the mechanism of selective return migration. Hypothetical probabilistic models are simulated for assessing the relationship between duration and birth outcomes based on the assumptions of these two hypotheses. The results are compared with the empirical research on the maternal and infant health of first-generation, Mexican-origin immigrant women in the United States. The analysis provides evidence that a curvilinear pattern of duration and birth outcomes can be explained by the joint effects of both acculturation and selective return migration in which the former affects health status over the longer durations, and the latter affects health status at shorter durations.     

Health Selection,Migration, and HIV Infection in Malawi

Despite its importance in studies of migrant health, selectivity of migrants—also known as migration health selection—has seldom been examined in sub-Saharan Africa (SSA). This neglect is problematic because several features of the context in which migration occurs in SSA—very high levels of HIV, in particular—differ from contextual features in regions that have been studied more thoroughly. To address this important gap, we use longitudinal panel data from Malawi to examine whether migrants differ from nonmigrants in pre-migration health, assessed via SF-12 measures of mental and physical health. In addition to overall health selection, we focus on three more-specific factors that may affect the relationship between migration and health: (1) whether migration health selection differs by destination (rural-rural, rural-town, and rural-urban), (2) whether HIV infection moderates the relationship between migration and health, and (3) whether circular migrants differ in pre-migration health status. We find evidence of the healthy migrant phenomenon in Malawi, where physically healthier individuals are more likely to move. This relationship varies by migration destination, with healthier rural migrants moving to urban and other rural areas. We also find interactions between HIV-infected status and health: HIV-infected women moving to cities are physically healthier than their nonmigrant counterparts.     

Neighborhood Coethnic Immigrant Concentrations and Mexican American Children’s Early Academic Trajectories

We use data from the Early Childhood Longitudinal Study, Kindergarten Class of 1998–1999 as well as neighborhood data from the 2000 U.S. Census to examine relationships between neighborhood Mexican immigrant concentration and reading (n = 820) and mathematics (n = 1,540) achievement among children of Mexican descent. Mixed-effects growth curves show that children living in immigrant-rich communities enter school at an achievement disadvantage relative to children in neighborhoods with fewer coethnic immigrant families. However, these disparities are driven by lower-SES families’ concentration in immigrant-heavy neighborhoods as well as these neighborhoods’ structural disadvantages. Controlling for children’s generation status and socioeconomic status, as well as neighborhood-level measures of structural disadvantage, safety, and social support, neighborhood immigrant concentration demonstrates a modest positive association with mathematics achievement among children of Mexican immigrant parents at the time of school entry. However, we do not find strong positive associations between Mexican American children’s rate of achievement growth over the elementary and middle school years and their neighborhoods’ concentration of Mexican immigrants.     

The Effects of Children’s Migration on Elderly Kin’s Health: A Counterfactual Approach

Recent studies of migration and the left-behind have found that elders with migrant children actually experience better health outcomes than those with no migrant children, yet these studies raise many concerns about self-selection. Using three rounds of panel survey data from the Indonesian Family Life Survey, we employ the counterfactual framework developed by Rosenbaum and Rubin to examine the relationship between having a migrant child and the health of elders aged 50 and older, as measured by activities of daily living (ADL), self-rated health (SRH), and mortality. As in earlier studies, we find a positive association between old-age health and children’s migration, an effect that is partly explained by an individual’s propensity to have migrant children. Positive impacts of migration are much greater among elders with a high propensity to have migrant children than among those with low propensity. We note that migration is one of the single greatest sources of health disparity among the elders in our study population, and point to the need for research and policy aimed at broadening the benefits of migration to better improve health systems rather than individual health.     

Limited Income Mobility: Empirical Evidence from Korea

Longitudinal child cohort studies collect large amounts of information about children’s families and the types of activities they participate in. With such a broad array of information to select from, researchers investigating aspects of the family environment may be overwhelmed by the choices available if they only need summary measures reflecting domains of the family environment. Using data from the Longitudinal Study of Australian Children, this study aimed to derive and assess summary indices of three domains of the family environment, including a Family Stress Index, Home Education Index and Parenting Index. Indices were derived by identifying a set of candidate indicators, dichotomising the indicators to determine elements of risk, then averaging across the dichotomised items to create measures that captured cumulative risk. Assessments of the three indices suggest that the measures are consistent across time, and have good predictive validity with socioeconomic measures and assessments of children’s social-emotional wellbeing and learning outcomes. Structural equation models estimating children’s outcomes suggested that models using the indices had comparable model fit to models using the broader array of variables used to construct the indices, but the Parenting Index in particular explained less variation in children’s problem behaviour outcomes. Overall, the family environment indices derived in this study may be useful for researchers wishing to simplify complex models or explore the circumstances of children exposed to multiple risks, but less useful in analyses where the primary goal is to explain variance in children’s developmental outcomes.     

Acculturation inclinations and subjective health status of internal migrants in James Town,an urban slum settlement in Accra

The impact of acculturation on health status has been a subject of debate for over three decades. In this exploratory study, we use cross-sectional data to examine the relative effects of acculturation inclinations on self-rated health statuses among migrants in a poor, urban neighborhood in Accra. Much emphasis is placed on the role of the urban environment in disease outbreaks within the city, the patterns of communicable and non-communicable diseases, spatial health inequalities, and the distribution of sexual and reproductive illness risks in Accra. However, the ways by which acculturation inclinations and dimensions may exert positive or negative influence on health outcomes in such contexts have not been examined. We developed proxies for four main acculturation elements: assimilation, separation, integration, and marginalization. We used results from a semi-structured survey questionnaire with 296 migrants. After controlling for socio-demographic characteristics and social capital, findings from Ordinal Logistic Regression models indicate that the acculturation predictors of subjective health status are assimilation and marginalization. This study is the first step in understanding the possible trajectories by which acculturation affects health in the internal migration context in Ghana.     

Direct observation of neighborhood stressors and environmental justice in the South Bronx,New York City

Neighborhood environments are believed to contribute to negative health outcomes; however, accurately measuring area attributes remains challenging. The objective of this research is to quantify the presence of (or lack of) environmental injustices characterized by the geographic distribution of neighborhood stressors related to the built and social environment in the South Bronx that may contribute to poor health outcomes. Objective environmental audits were collected and coded for over 2,000 block faces. Physical and social indices were calculated. Bivariate correlations and spatial regressions revealed potential environmental injustices related to the distribution of social and physical environmental stressors at the local level. This novel dataset has many future applications in the effort to understand the connection between health, environmental justice, and location.     

What is Most Important: Social Factors, Health Selection, and Adolescent Educational Achievement

This paper explores the relative importance of social factors and health measures in predicting educational achievement in early and late adolescence using population-based administrative data. The sample was made up of 41,943 children born in Manitoba, Canada between 1982 and 1989 and remaining in the province until age 18. Multilevel modeling nests each individual (level 1) within a family (level 2) residing within a neighborhood (level 3). Most important in predicting adolescent achievement were a broad socioeconomic status index (and a narrower measure of household income), being on social assistance, mother’s age at first birth, gender, residential mobility, the presence of ADHD/Conduct disorders, and measures of family functioning (child taken into care or offered protection services and family structure history). Family size, birth order, and newborn characteristics (birthweight, APGAR, gestational age) were statistically significant but of little importance in explaining the outcomes. Both examining regression coefficients and systematically omitting variables showed social factors (often emphasized by epidemiologists) to have markedly greater effects than the combination of health measures (often stressed by economists) in predicting achievement. However, mental health in childhood is identified as among the important predictors. Record linkage across population datasets from health, education, and family services ministries allowed: tracking health and educational attainment at different times in a child’s life, following a large number of cases across childhood, considerable sensitivity testing, controlling for unmeasured family and neighborhood effects, generating an extensive list of predictors, estimating effect sizes, and comparing Manitoba results with those of well-known American studies.     

<Emphasis Type="Bold">Neighborhoods,Schools, and Academic Achievement: A Formal Mediation Analysis of Contextual Effects on Reading and Mathematics Abilities</Emphasis>

Although evidence indicates that neighborhoods affect educational outcomes, relatively little research has explored the mechanisms thought to mediate these effects. This study investigates whether school poverty mediates the effect of neighborhood context on academic achievement. Specifically, it uses longitudinal data from the Panel Study of Income Dynamics, counterfactual methods, and a value-added modeling strategy to estimate the total, natural direct, and natural indirect effects of exposure to an advantaged rather than disadvantaged neighborhood on reading and mathematics abilities during childhood and adolescence. Contrary to expectations, results indicate that school poverty is not a significant mediator of neighborhood effects during either developmental period. Although moving from a disadvantaged neighborhood to an advantaged neighborhood is estimated to substantially reduce subsequent exposure to school poverty and improve academic achievement, school poverty does not play an important mediating role because even the large differences in school composition linked to differences in neighborhood context appear to have no appreciable effect on achievement. An extensive battery of sensitivity analyses indicates that these results are highly robust to unobserved confounding, alternative model specifications, alternative measures of school context, and measurement error, which suggests that neighborhood effects on academic achievement are largely due to mediating factors unrelated to school poverty.     

Migration Processes,Familial Characteristics,and Schooling Dropout Among Black Youths

This study uses data from the 2000 U.S. census to examine whether the schooling advantage of black immigrants’ children found in previous studies is robust. According to the results, the advantage associated with having migrant parents is not restricted to the children of immigrants. Black migrant parents, regardless of foreign-born status, have children with favorable schooling outcomes. Such parental-level influences, however, seem stronger among some immigrant groups than among native internal migrants. The study also suggests that the collective advantage of the children of immigrants is driven by positive migrant selectivity. Accordingly, comparisons between the children of native migrants and children in various immigrant groups reveal that the immigrant advantage is not robust. In fact, the results suggest that when immigrant ethnicity is considered, some children of immigrants may be disadvantaged relative to the children of native migrants. Among recent migrants, the children of native internal migrants also have more favorable outcomes than the children of immigrants, although these differences disappear after background factors are controlled. Further, internal-migrant and immigrant households are less likely to have characteristics that adversely affect schooling than nonmigrant households. Unsurprisingly, the children of nonmigrants have the worst outcomes among black youths.     

Mental Health Consequences of International Migration for Vietnamese Americans and the Mediating Effects of Physical Health and Social Networks: Results From a Natural Experiment Approach

Although the existing literature on immigrant mental health is extensive, major substantive and methodological gaps remain. Substantively, there is little population-based research that focuses on the mental health consequences of migration for Vietnamese Americans. More generally, although a wide range of mental health problems among immigrants has been identified, the potential causal or mediating mechanisms underlying these problems remain elusive. This latter substantive shortcoming is related to a key methodological challenge involving the potentially confounding effects of selection on migration-related outcomes. This article addresses these challenges by employing a “natural experiment” design, involving comparisons among three population-based samples of Vietnamese immigrants, never-leavers, and returnees (N  =  709). Data were collected in Ho Chi Minh City and in New Orleans between 2003 and 2005. The study investigates the long-term impact of international migration on Vietnamese mental health, and the potential mediating effects of social networks and physical health on these migration-related outcomes. The results reveal both mental health advantages and disadvantages among Vietnamese immigrants relative to the two groups of Vietnamese nationals. Selection can be ruled out for some of these differences, and both social networks and physical health are found to play important explanatory roles.     

Differences in the locational attainment of immigrant and native-born households with children in New York City

In this paper we use a data set created especially for New York City to evaluate whether the locational attainment of households with children, as indicated by the context of the neighborhoods in which they live, varies by their immigrant status. In addition, we evaluate whether the relationship between immigrant status and neighborhood conditions varies by the householder's race/ethnicity. Overall, when compared with native-born households with children, immigrant households with children live in neighborhoods of lower quality, characterized by higher teenage fertility rates and higher percentages of students in local schools scoring below grade level in math and of persons receiving AFDC, but lower rates of juvenile detention. Further analyses, however, revealed that race/ethnicity is far more potent than immigrant status per se in predicting where households with children live.     

The Impact of Salmon Bias on the Hispanic Mortality Advantage: New Evidence from Social Security Data

A great deal of research has focused on factors that may contribute to the Hispanic mortality paradox in the United States. In this paper, we examine the role of the salmon bias hypothesis—the selective return of less-healthy Hispanics to their country of birth—on mortality at ages 65 and above. These analyses are based on data drawn from the Master Beneficiary Record and NUMIDENT data files of the Social Security Administration. These data provide the first direct evidence regarding the effect of salmon bias on the Hispanic mortality advantage. Although we confirm the existence of salmon bias, it is of too small a magnitude to be a primary explanation for the lower mortality of Hispanic than non-hispanic (NH)-White primary social security beneficiaries. Longitudinal surveys that follow individuals in and out of the United States are needed to further explore the role of migration in the health and mortality of foreign-born US residents and factors that contribute to the Hispanic mortality paradox.     

Exploring factors influencing adverse birth outcomes in a regional hospital setting in Ghana: A configuration theoretical perspective

BackgroundUnderstanding the complexity of factors that influence adverse childbirth outcomes at health facilities can be enhanced by the theoretical articulation of the interplay between external socio-structural and internal technical dynamics of the birthplace in context. Guided by configuration theory, this study explored the factors that influence adverse birth outcomes at a regional hospital setting in Ghana.MethodsQualitative data were collected from the Upper West regional hospital in Ghana. In-depth interviews were administered to 30 purposively selected respondents comprising 20 postpartum mothers and 10 midwives. The data was electronically audio-recorded, transcribed and analysed using thematic analysis.FindingsThe study revealed three key dimensions of socio-technical configurations shaping adverse birth outcomes within the hospital setting. These are mother-midwife personality and behavioral dynamics including personality clashes and poor communication; birth process dynamics consisting of diverse paradigms of safe birthing process and socio-technical conflicts on caesarean section; and birthplace context, comprising nature of the birthing environment, confidence in the safety of the birthplace and national health policy implementation challenges. These socio-technical interactions result in late reporting at facilities by mothers and delay in care delivery by midwives, contributing to adverse birth outcomes.ConclusionIn line with configuration theory, our study positions the influences of adverse birth outcomes in hospital settings in alignment with a subtle and iterative interplay of socio-technical factors. To comprehensively address adverse birth outcomes in hospital settings, health policymakers and practitioners need to understand and contextualise the socio-technical interactions that shape notable outcomes at specific hospital settings.     

Identity,Belonging and Intentions to Leave of First and 1.5 Generation FSU Immigrants in Israel

Recent studies examining immigrant intentions to leave the host country have focused on return migration to the origin country (De Haas and Fokkema in Demogr Res 25:755–782, 2011; De Haas et al. in J Int Migr Integr 16(2):415–429, 2015). The current study examines immigrant intentions to leave the host country, but not necessarily to return to the homeland. The predictive model, which focuses on immigrant subjective identity, was tested through a survey of 338 first and 1.5 generation Former Soviet Union (FSU) immigrants in Israel, who applied to a prominent NGO to obtain proof of their Jewishness. These individuals are from the largest recent immigrant group in Israel, and are highly represented among the young adult (aged 25–40) immigrants leaving Israel. The findings indicate that contrary to our expectations, Israeli local identity did not have a significant effect on the immigrants’ intentions to leave Israel. By contrast, Jewish identity and level of religiosity did play a significant role in attenuating the immigrant’s tendency to leave. This paper highlights the complex relationship between ethnic identities and religiosity among immigrants in general, and in Israel in particular.     

How High is Hispanic/Mexican Fertility in the United States? Immigration and Tempo Considerations

In this article, I demonstrate that the apparently much higher fertility of Hispanic/Mexican women in the United States is almost exclusively the product of period estimates obtained for immigrant women and that period measures of immigrant fertility suffer from three serious sources of bias that together significantly overstate fertility levels: difficulties in estimating the size of immigrant groups; the tendency for migration to occur at a particular stage in life; and, most importantly, the tendency for women to have a birth soon after migration. When these sources of bias are taken into consideration, the fertility of native Hispanic/Mexican women is very close to replacement level. In addition, the completed fertility of immigrant women in the United States is dramatically lower than the level obtained from period calculations. Findings are consistent with classical theories of immigrant assimilation but are a striking departure from the patterns found in previous studies and published statistics. The main implication is that without a significant change in immigration levels, current projections based on the premise of high Hispanic fertility are likely to considerably exaggerate Hispanic population growth, its impact on the ethno-racial profile of the country, and its potential to counteract population aging.     

Climate,migration, and the local food security context: introducing Terra Populus

Studies investigating the connection between environmental factors and migration are difficult to execute because they require the integration of microdata and spatial information. In this article, we introduce the novel, publically available data extraction system Terra Populus (TerraPop), which was designed to facilitate population–environment studies. We showcase the use of TerraPop by exploring variations in the climate–migration association in Burkina Faso and Senegal based on differences in the local food security context. Food security was approximated using anthropometric indicators of child stunting and wasting derived from Demographic and Health Surveys and linked to the TerraPop extract of climate and migration information. We find that an increase in heat waves was associated with a decrease in international migration from Burkina Faso, while excessive precipitation increased international moves from Senegal. Significant interactions reveal that the adverse effects of heat waves and droughts are strongly amplified in highly food insecure Senegalese departments.     

New evidence on the healthy immigrant effect

This paper presents new evidence that immigrants have better health than natives upon arrival to their destination. It analyzes a very interesting episode in international migration, namely the exodus of Ecuadorians in the aftermath of the economic collapse in the late 1990s. More than 600,000 Ecuadorians from 1999 to 2005 left their homeland, most relocating in Spain. Using information from the birth certificate data, the paper compares the birth outcomes of immigrant women in Spain not only to that of natives at destination, but to that of natives in Ecuador and immigrants from other nationalities in Spain. These comparisons suggest that the better health at birth of children born to immigrants from Ecuador partly responds to the selection of healthier women into migration.     

Health Implications of Socioeconomic Characteristics,Subjective Social Status,and Perceptions of Inequality: An Empirical Study of China

This study explores how health is associated with socioeconomic status, subjective social status, and perceptions of inequality simultaneously. Two health outcomes (self-reported health and psychological distress) are examined, and the subtlety of their relationships with each of the three dimensions of inequality is probed. Data used come from a nationally representative sample survey conducted in China. Several findings emerge from empirical analyses: (1) Overall, the three dimensions of social inequality are associated with self-reported health and psychological distress net of each other and other control variables; (2) among focal socioeconomic characteristics, income and Chinese Communist Party membership are significantly associated with both health outcomes, education exhibits a robust effect on self-reported health, and rural and migrant statuses are linked to less distress; (3) subjective social status in comparisons with both socially proximal and broad referents is associated with both health outcomes, and the association with downward comparisons is more salient than with upward comparisons; and (4) perceived degree and perceived sources of inequality in society show varying relationships with the two health outcomes. These findings add to our understanding of the multidimensionality and complexity of social inequality in relation to health.     

Family Sponsorship and Late-Age Immigration in Aging America: Revised and Expanded Estimates of Chained Migration

We use the Immigrants Admitted to the United States (microdata) supplemented with special tabulations from the Department of Homeland Security to examine how family reunification impacts the age composition of new immigrant cohorts since 1980. We develop a family migration multiplier measure for the period 1981–2009 that improves on prior studies by including immigrants granted legal status under the 1986 Immigration Reform and Control Act and relaxing unrealistic assumptions required by synthetic cohort measures. Results show that every 100 initiating immigrants admitted between 1981 and 1985 sponsored an average of 260 family members; the comparable figure for initiating immigrants for the 1996–2000 cohort is 345 family members. Furthermore, the number of family migrants ages 50 and over rose from 44 to 74 per 100 initiating migrants. The discussion considers the health and welfare implications of late-age immigration in a climate of growing fiscal restraint and an aging native population.