Browsing by Author "Tunstall, Helena"
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Item Changing patterns of migration in Latin America: how can research develop intelligence for public health?(Organización Panamericana de la Salud, 2013) Cabieses, Báltica; Tunstall, Helena; Pickett, Kate; Gideon, JasmineEn los últimos decenios, los modelos de migración en América Latina han cambiado significativamente, en particular desde el inicio de la recesión mundial en el 2007. Estos recientes cambios económicos han acentuado y exacerbado la insuficiencia de datos probatorios existentes en América Latina con respecto a la migración, un determinante crucial de la salud. Los modelos de migración están evolucionando constantemente en América Latina, pero la investigación en materia de migración no ha evolucionado a la misma velocidad. Este artículo se centra en la necesidad de un mayor conocimiento de las condiciones de vida y salud de las poblaciones migrantes en América Latina en el contexto de la reciente recesión mundial. Los autores explican cómo se podrían obtener nuevos datos sobre el bienestar de los inmigrantes mediante un mayor aporte de datos probatorios de los censos y las encuestas de investigación en curso para 1) informar mejor a las instancias normativas acerca de las necesidades de las poblaciones migrantes en América Latina; y 2) ayudar a determinar las mejores estrategias para llegar a los inmigrantes indocumentados. Es esencial llevar a cabo estudios longitudinales sobre los inmigrantes en América Latina con objeto de formular una mejor descripción de sus condiciones de vida y sus necesidades de salud durante las etapas iniciales de la inmigración y con el transcurso del tiempo. Para satisfacer esta necesidad, los autores alientan la promoción de fuentes sostenibles de información y datos probatorios sobre la compleja relación entre migración y salud.Item Comparing sociodemographic factors associated with disability between immigrants and the chilean-born: are there different stories to tell?(MDPI, 2012) Cabieses, Báltica; Pickett, Kate; Tunstall, HelenaThis study explored a range of sociodemographic factors associated with disability among international immigrants in Chile, and compared them to the Chilean-born. Secondary data analysis of the Chilean population-based survey CASEN-2006 was conducted (268,873 participants). Main health outcomes: any disability and six different types of disability: visual, hearing, learning, physical, psychiatric and speaking (binary outcomes). Sociodemographic variables: Demographic factors (age, sex, marital status, urban/rural, ethnicity), socioeconomic status (SES: income, education, employment status, and an integrated indicator combining the SES measures through cluster analysis for the immigrant population), material factors (overcrowding, sanitation, housing quality) and migration related (country of origin and length of stay). Immigrants reported a significantly lower prevalence of any disability (3.55%), visual (1.00%) and physical disability (0.38%). Factors associated with any disability among immigrants were age, low SES or over 20 years duration of residence in Chile; while a range of sociodemographic factors were associated with disability in the Chilean-born. Conditional regression models by age group varied between populations, but SES remained significantly associated with disability across immigrants and the Chilean-born. However, there are no similar patterns of factors associated to different types of disability between the populations under study. Factors associated with disability varied between populations under study, but SES showed a consistent association with any disability in immigrants and the Chilean-born. Types of disability showed different patterns of factors associated to them between populations, which suggest the great complexity of underlying mechanisms related to disability in Chile.Item Evaluación de la “paradoja latina” en Chile utilizando datos de la encuesta de salud de 2006(Sociedad Médica de Santiago, 2013) Cabieses, Báltica; Tunstall, Helena; Pickett, KateBackground: Several studies in high-income countries report better health status of immigrants compared to the local population (“healthy migrant” effect), regardless of their socioeconomic deprivation. This is known as the Latino paradox. Aim: To test the Latino paradox within Latin America by assessing the health of international immigrants to Chile, most of them from Latin American countries, and comparing them to the Chilean-born. Material and Methods: Secondary data analysis of the population-based CASEN survey-2006. Three health outcomes were included: disability, illness/accident, and cancer/chronic condition (dichotomous). Demographics (age, sex, marital status, urban/rural, ethnicity), socioeconomic-status (SES: educational level, employment status and household income per-capita), and material standards (overcrowding, sanitation, housing quality). Crude and adjusted weighted regression models were performed. Results: One percent of Chile’s population were immigrants, mainly from other Latin American countries. A “healthy migrant” effect appeared within the total immigrant population: this group had a significantly lower crude prevalence of almost all health indicators than the Chilean-born, which remained after adjusting for various demographic characteristics. However, this effect lost significance when adjusting by SES for most outcomes. The Latino paradox was not observed for international immigrants compared to the local population in Chile. Also, health of immigrants with the longest time of residency showed similar health rates to the Chilean-born. Conclusions: The Latino paradox was not observed in Chile. Protecting low SES immigrants in Chile could have large positive effects in their health at arrival and over time.Item Immigrant health workers in Chile: is there a Latin American "brain drain"?(Pan American Health Organization, 2012) Cabieses, Báltica; Tunstall, HelenaMost research on the phenomenon of "brain drain" (one-way flow of highly skilled/educated individuals) has focused on movement between the least developed and most highly developed countries. Therefore, the significance of patterns of migration to middle-income countries such as those in Latin America is less clear. The aim of this study was to outline key features of international health worker "brain drain" to Chile to promote discussion and further research on this phenomenon as it pertains to the Latin American region. The study compared immigrant health workers living in Chile to both Chilean-born health workers and other immigrants living in Chile using a qualitative nationwide dataset (the results of Chile's 2009 National Socioeconomic Characterization Survey). Demographic, socioeconomic, and health-related variables were included in the analyses, which were weighted by population to obtain nationally representative estimates. In 2009, immigrant health workers represented 2.2% of all health personnel and 2.6% of all resident immigrants in the country. While most immigrant health workers had a universitylevel education, about 25% had only a high school-level education or less. There was no statistically significant difference between the distribution of immigrant health workers' household income and that of Chilean-born health workers. A significantly higher proportion of the immigrant group reported no entitlement to health care provision. While the results of this study do not indicate a significant international health worker "brain drain" to Chile, they do suggest distinctive patterns of migration within the Latin American region. Future studies in Chile could confirm the validity of these results, using a larger sample of immigrant health workers.Item Testing the Latino paradox in Latin America: A population-based study of Intra-regional immigrants in Chile(Sociedad Médica de Santiago, 2013) Cabieses, Báltica; Tunstall, Helena; Pickett, KateAntecedentes: Hay estudios que informan un mejor estado de salud de los inmigrantes en comparación con la población local (efecto del "migrante sano"), independientemente de su posición socioeconómica (PSE). Esto se conoce como la paradoja latina. Objetivo: Probar la paradoja latina dentro de América Latina en Chile. Material y Métodos: Análisis secundario de datos de la encuesta CASEN 2006. Tres resultados de salud se incluyeron: discapacidad, enfermedad/accidente, cáncer/enfermedad crónica (variables dicotómicas). Se consideraron datos demográficos (edad, sexo, estado civil, zona urbana/rural, grupo étnico), PSE (nivel educativo, situación laboral y el ingreso familiar per cápita), y condiciones materiales (hacinamiento, saneamiento, calidad de la vivienda). Modelos de regresión ponderados crudos y ajustados fueron analizados en STATA 11.0. Resultados: El uno por ciento de la población de Chile eran inmigrantes, principalmente de otros países de América Latina. Un efecto de "inmigrante sano" apareció dentro de la población inmigrante total: este grupo tenía una prevalencia cruda significativamente menor que la población chilena en todos los indicadores de salud. Sin embargo, este efecto de migrante sano pierde su significación al ajustar por PSE. Además, la salud de los inmigrantes con más tiempo de residencia mostró tasas similares de salud a la de origen chileno. Conclusiones: La paradoja latina no se observó en Chile. La protección de los inmigrantes de baja PSE podría tener grandes efectos positivos en su salud.Item The characteristics of mobile families with young children in England and the impact of their moves on neighbourhood inequalities in maternal and child health(Elsevier, 2015) Tunstall, Helena; Cabieses, Báltica; Shaw, RichardThis study compares the health and socio-demographic characteristics of residentially mobile families with young children in England to families that do not move and assesses the impact of their moves upon inequalities in health between neighbourhoods. The analysis uses data from the first two waves of the Millennium Cohort Study describing 9022 cohort members, born in 2000–2002, and their families. A third of the families moved between the waves of the survey when the children were aged nine months and three years. Mobile families moved disproportionately toward less deprived areas but had disadvantaged socio-economic characteristics and poor outcomes for infant's birth weight and accidents and mother's self-rated health, limiting longstanding illness and mental health. Health outcomes were worst among the minority moving to more deprived neighbourhoods. Families' moves moderately increased health inequalities between neighbourhoods with high and low deprivation.Item The relationship between knowledge of HIV, self-perceived vulnerability and sexual risk behavior among community clinic workers in Chile(2010) Cabieses, Báltica; Ferrer, Lilian; Villarroel, Luis; Tunstall, Helena; Norr, KathleenObjective Testing the hypothesis of an association between knowledge and sexual risk behaviour (SRB) amongst community-clinic workers in Chile, explained by the confounding effect of self-perceived vulnerability to HIV. Methods A cross-sectional survey was analyzed; it was nested within a quasiexperimental study of 720 community-clinic workers in Santiago. The SRB score combined the number of sexual partners and condom use (coded as “high”/”low” SRB). Knowledge of HIV (a 25-item index) was coded as “inadequate”/”adequate” knowledge. Self-perceived vulnerability to HIV was categorised as being “high”/ ”moderate”/”low”. Control variables included socio-demographics, religiousness and educational level. Percentages/averages, Chi-square tests and logistic regression (OR-estimations) were used for descriptive, association and confounding analysis. Results Respondents were 78.2 % female, 46.8 % married and 67.6 % Catholic. Mean age was 38.9 (10.5 SD) and 69 % had university/diploma level. Self-perceived HIV vulnerability was “low” in 71.5 % cases. A negative association between knowledge and SRB was found (OR=0.55;CI=0.35–0.86), but self-perceived vulnerability did not have a confounding effect on this relationship. This relationship also persisted after being adjusted for multiple control variables (e.g. age, sex, type of primary centre, educational level, and religiousness). Conclusions Some community-clinic workers had inaccurate knowledge of HIV, which was associated with SRB. Self-perceived vulnerability did not have a confounding effect; however, future studies should further analyze occupational risk of HIV as a possible driving factor in health workers´ perception of their risk. Focused training programmes should be developed to enhance basic knowledge of HIV in this groupItem Understanding differences in access and use of healthcare between international immigrants to Chile and the Chilean-born: a repeated cross-sectional population-based study in Chile(BioMed Central, 2012) Cabieses, Báltica; Tunstall, Helena; Pickett, Kate; Gideon, JasmineIntroduction International evidence indicates consistently lower rates of access and use of healthcare by international immigrants. Factors associated with this phenomenon vary significantly depending on the context. Some research into the health of immigrants has been conducted in Latin America, mostly from a qualitative perspective. This population-based study is the first quantitative study to explore healthcare provision entitlement and use of healthcare services by immigrants in Chile and compare them to the Chilean-born. Methods Data come from the nationally representative CASEN (Socioeconomic characterization of the population in Chile) surveys, conducted in 2006 and 2009. Self-reported immigrants were compared to the Chilean-born, by demographic characteristics (age, sex, urban/rural, household composition, ethnicity), socioeconomic status (SES: education, household income, contractual status), healthcare provision entitlement (public, private, other, none), and use of primary services. Weighted descriptive, stratified and adjusted regression models were used to analyse factors associated with access to and use of healthcare. Results There was an increase in self-reported immigrant status and in household income inequality among immigrants between 2006 and 2009. Over time there was a decrease in the rate of immigrants reporting no healthcare provision and an increase in reporting of private healthcare provision entitlement. Compared to the Chilean-born, immigrants reported higher rates of use of antenatal and gynaecological care, lower use of well-baby care, and no difference in the use of Pap smears or the number of attentions received in the last three months. Immigrants in the bottom income quintile were four times more likely to report no healthcare provision than their equivalent Chilean-born group (with different health needs, i.e. vertical inequity). Disabled immigrants were more likely to have no healthcare provision compared to the disabled Chilean-born (with similar health needs, i.e. horizontal inequity). Factors associated with immigrants’ access to, and use of, healthcare were sex, urban/rural status, education and country of origin. Conclusion There were significant associations between SES, and access to and use of healthcare among immigrants in Chile and a higher prevalence of no health care provision entitlement among poor and disabled immigrants compared to the Chilean-born. Changing associations between access and use of healthcare and SES among immigrants in Chile over time may reflect changes in their socio-demographic composition or in the survey methodology between 2006 and 2009.Item Understanding the Socioeconomic Status of International Immigrants in Chile Through Hierarchical Cluster Analysis: a Population-Based Study(The Authors. International Migration © 2013 IOM, 2015) Cabieses, Báltica; Tunstall, Helena; Pickett, KateImmigration to Chile is not large (just under 2% of the total population) but has increased in recent years. This study aimed to analyse the socioeconomic status (SES) of immigrants in Chile and compare it with the Chilean-born, by secondary data analysis of an anonymous nationally representative survey (CASEN, 2006). Immigrants are categorized into Low, Medium and High SES through hierarchical cluster analysis. Around 1 per cent of the total sample are international immigrants; an additional 0.7 per cent did not report their migration status. Self-reported immigrants show great variability in their SES. Immigrants in the Low SES cluster appeared to be significantly younger than those in Medium and High SES, also more likely to be children, women and belong to an ethnic minority. Immigrants in the Low SES cluster appeared similar to the unemployed, poorest Chilean-born but are more than eight years younger on average and more likely to be female. Immigrants to Chile are a unique group, with socio-demographic characteristics that differ significantly from the Chilean-born population, but there is great heterogeneity and complexity within this group. Cluster analysis provided a meaningful interpretation of the multidimensional concept of SES and allowed the identification of a vulnerable group of Low SES immigrants to Chile.Item What are the living conditions and health status of those who don’t report their migration status? a population-based study in Chile(BioMed Central, 2012) Cabieses, Báltica; Pickett, Kate; Tunstall, HelenaBackground: Undocumented immigrants are likely to be missing from population databases, making it impossible to identify an accurate sampling frame in migration research. No population-based data has been collected in Chile regarding the living conditions and health status of undocumented immigrants. However, the CASEN survey (Caracterizacion Socio- Economica Nacional) asked about migration status in Chile for the first time in 2006 and provides an opportunity to set the base for future analysis of available migration data. We explored the living conditions and health of self-reported immigrants and respondents who preferred not to report their migration status in this survey. Methods: Cross-sectional secondary analysis of CASEN survey in Chile in 2006. Outcomes: any disability, illness/accident, hospitalization/surgery, cancer/chronic condition (all binary variables); and the number of medical/emergency attentions received (count variables). Covariates: Demographics (age, sex, marital status, urban/rural, ethnicity), socioeconomic status (education level, employment status and household income), and material standard of living (overcrowding, sanitation, housing quality). Weighted regression models were estimated for each health outcome, crude and adjusted by sets of covariates, in STATA 10.0. Results: About 1% of the total sample reported being immigrants and 0.7% preferred not to report their migration status (Migration Status - Missing Values; MS-MV). The MS-MV lived in more deprived conditions and reported a higher rate of health problems than immigrants. Some gender differences were observed by health status among immigrants and the MS-MV but they were not statistically significant. Regressions indicated that age, sex, SES and material factors consistently affected MS-MVs’ chance of presenting poor health and these patterns were different to those found among immigrants. Great heterogeneity in both the MS-MV and the immigrants, as indicated by wide confidence intervals, prevented the identification of other significantly associated covariates. Conclusion: This is the first study to look at the living conditions and health of those that preferred not to respond their migration status in Chile. Respondents that do not report their migration status are vulnerable to poor health and may represent undocumented immigrants. Surveys that fail to identify these people are likely to misrepresent the experiences of immigrants and further quantitative and qualitative research is urgently required.Item Where are socioeconomically deprived immigrants located in Chile? A spatial analysis of census data using an index of multiple deprivation from the last three decades (1992-2012)(PLoS, 2016) Vasquez, Andrea; Cabieses, Báltica; Tunstall, HelenaIntroduction and Purpose of the Study Immigrants in Chile have diverse characteristics and include socioeconomically deprived populations. The location of socioeconomically deprived immigrants is important for the development of public policy intelligence at the local and national levels but their areas of residence have not been mapped in Chile. This study explored the spatial distribution of socioeconomic deprivation among immigrants in Chile, 1992–2012, and compared it to the total population. Material and Methods Areas with socioeconomically deprived populations were identified with a deprivation index which we developed modelled upon the Index of Multiple Deprivation (IMD) for England. Our IMD was based upon the indicators of unemployment, low educational level (primary) and disability from Census data at county level for the three decades 1992, 2002 and 2012, for 332, 339 and 343 counties respectively. We developed two versions of the IMD one based on disadvantage among the total population and another focused upon the circumstances of immigrants only. We generated a spatial representation of the IMD using GIS, for the overall IMD score and for each dimension of the index, separately. We also compared the immigrants´ IMD to the total population´s IMD using Pearson´s correlation test. Results Results showed that socioeconomically deprived immigrants tended to be concentrated in counties in the northern and central area of Chile, in particular within the Metropolitan Region of Santiago. These were the same counties where there was the greatest concentration of socioeconomic deprivation for the total population during the same time periods. Since 1992 there have been significant change in the location of the socioeconomically deprived populations within the Metropolitan Region of Santiago with the highest IMD scores for both the total population and immigrants becoming increasingly concentrated in the central and eastern counties of the Region. Conclusion This is the first study analysing the spatial distribution of socioeconomic deprivation among international immigrants and the total population in a Latin American country. Findings could inform policy makers about location of areas of higher need of social protection in Chile, for both immigrants and the total resident population in the country.