There is evidence to suggest that immigrant populations from low or medium-income countries to high income countries show a significant change in obesogenic behaviors in the host society, and that these changes are associated with acculturation. However, the results of studies vary depending on how acculturation is measured. The objective of this study is to systematically review the evidence on the relationship between acculturation - as measured with a standardized acculturation scale - and overweight/obesity among adult migrants from low/middle countries to high income countries. A systematic review of relevant studies was undertaken using six EBSCOhost databases and following the Centre for Reviews and Dissemination’s Guidance for Undertaking Reviews in Health Care. The initial search identified 1135 potentially relevant publications, of which only nine studies met the selection criteria. All of the studies were from the US with migrant populations from eight different countries. Six studies employed bi-directional acculturation scales and three used uni-directional scales. Six studies indicated positive general associations between higher acculturation and body mass index (BMI), and three studies reported that higher acculturation was associated with lower BMI, as mainly among women. Despite the small number of studies, a number of potential explanatory hypotheses were developed for these emerging patterns. The ‘Healthy Migrant Effect’ may diminish with greater acculturation as the host culture potentially promotes more unhealthy weight gain than heritage cultures. This appears particularly so for men and a rapid form of nutrition transition represents a likely contributor. The inconsistent results observed for women may be due to the interplay of cultural influences on body image, food choices and physical activity. That is, the Western ideal of a slim female body and higher values placed on physical activity and fitness may counteract the obesogenic food environment for female migrants.

To examine the effectiveness of patient-centered care (PCC) models, which incorporate a cultural competence (CC) perspective, in improving health outcomes among culturally and linguistically diverse patients. The search included seven EBSCO-host databases: Academic Search Complete, Academic Search Premier, CINAHL with Full Text, Global Health, MEDLINE with Full Text, PsycINFO PsycARTICLES, PsycEXTRA, Psychology and Behavioural Sciences Collection and Pubmed, Web of Knowledge and Google Scholar. The review was undertaken following the preferred reporting items for systematic reviews and meta-analyses, and the critical appraisals skill program guidelines, covering the period from January 2000 to July 2011. Data were extracted from the studies using a piloted form, including fields for study research design, population under study, setting, sample size, study results and limitations. The initial search identified 1450 potentially relevant studies. Only 13 met the inclusion criteria. Of these, 11 were quantitative studies and 2 were qualitative. The conclusions drawn from the retained studies indicated that CC PCC programs increased practitioners' knowledge, awareness and cultural sensitivity. No significant findings were identified in terms of improved patient health outcomes. PCC models that incorporate a CC component are increased practitioners' knowledge about and awareness of dealing with culturally diverse patients. However, there is a considerable lack of research looking into whether this increase in practitioner knowledge translates into better practice, and in turn improved patient-related outcomes. More research examining this specific relationship is, thus, needed.

Extensive research shows that residential segregation has severe health consequences for racial and ethnic minorities. Most research to date has operationalized segregation in terms of either poverty or race/ethnicity rather than a synergy of these factors. A novel version of the Index of Concentration at the Extremes (ICE_Race-Income) specifically assesses racialized economic segregation in terms of spatial concentrations of racial and economic privilege (e.g., wealthy white people) versus disadvantage (e.g., poor Black people) within a given area. This multidimensional measure advances a more comprehensive understanding of residential segregation and its consequences for racial and ethnic minorities. The aim of this paper is to critically review the evidence on the association between ICE_Race-Income and health outcomes. We implemented the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to conduct a rigorous search of academic databases for papers linking ICE_Race-Income with health. Twenty articles were included in the review. Studies focused on the association of ICE_Race-Income with adverse birth outcomes, cancer, premature and all-cause mortality, and communicable diseases. Most of the evidence indicates a strong association between ICE_Race-Income and each health outcome, underscoring income as a key mechanism by which segregation produces health inequality along racial and ethnic lines. Two of the reviewed studies examined racial disparities in comorbidities and health care access as potential explanatory factors underlying this relationship. We discuss our findings in the context of the extant literature on segregation and health and propose new directions for future research and applications of the ICE_Race-Income measure.