Clustering of child mortality in a contemporary polygamous population in Africa.

Child mortality, defined here as mortality under age five, is not evenly distributed but found in clusters. In a contemporary polygamous population in Ghana with extended families, we separate clustering at the parental and household levels, which are often overlapping and inseparable in other historical studies. For eight years, we followed 28,994 individuals, including 9,288 children under the age of five, in 1,703 households. We identified four determinants that had a significant effect on child mortality: sex of the child, age of the child, drinking source, and socioeconomic status. After correcting for these determinants, we still identified significant clustering of child mortality at the level of the village (covariance [cov] = 0.02, p = .04), household (cov = 0.14, p = .003), father (cov = 0.24, p = .001), and mother (cov = 0.18, p = .05). The present data provide clues regarding the levels at which to look for unidentified determinants of child mortality and suggest that the importance of the father could be larger than previously thought.

Use of Medicaid data to explore community characteristics associated with HIV prevalence among beneficiaries with schizophrenia.

OBJECTIVES: People with severe mental illness (SMI) may be at increased risk for several adverse health conditions, including HIV/AIDS. This disproportionate disease burden has been studied primarily at the individual rather than community level, in part due to the rarity of data sources linking individual information on medical and mental health characteristics with community-level data. We demonstrated the potential of Medicaid data to address this gap. METHODS: We analyzed data on Medicaid beneficiaries with schizophrenia from eight states that account for 66% of cumulative AIDS cases nationally. RESULTS: Across 44 metropolitan statistical areas (MSAs), the treated prevalence of HIV among adult Medicaid beneficiaries diagnosed with schizophrenia was 1.56% (standard deviation = 1.31%). To explore possible causes of variation, we linked claims files with a range of MSA social and contextual variables including local AIDS prevalence rates, area-based economic measures, crime rates, substance abuse treatment resources, and estimates of injection drug users (IDUs) and HIV infection among IDUs, which strongly predicted community infection rates among people with schizophrenia. CONCLUSIONS: Effective strategies for HIV prevention among people with SMI may include targeting prevention efforts to areas where risk is greatest; examining social network links between IDU and SMI groups; and implementing harm reduction, drug treatment, and other interventions to reduce HIV spread among IDUs. Our findings also suggest the need for research on HIV among people with SMI that examines geographical variation and demonstrates the potential use of health-care claims data to provide epidemiologic insights into small-area variations and trends in physical health among those with SMI.

Self-rated health and social capital in transitional countries: Multilevel analysis of comparative surveys in Armenia, Azerbaijan, and Georgia.

The objective of this study is to analyze the effect of social capital on self-rated health in transitional countries of the South Caucasus region. The study is based on recent, 2009, cross-sectional nationally-representative surveys of 2082 respondents in Armenia, 2014 in Azerbaijan, and 1837 in Georgia with response rate of 78-80%. Two-level random-coefficient ordered logistic regression, modeling individual and community variations in subjective health was estimated to account for the hierarchical structure of the data set which includes individuals nested within communities. The results allow several interesting conclusions to be drawn. First, a proportion of the total variation in self-rated health explained at the community level is 0.23 for Azerbaijan, 0.10 for Georgia, and 0.08 for Armenia. These findings highlight the importance of more decentralized community-based healthcare interventions in the region. Second, human capital covariates remained significant predictors of health status even after controlling for social capital both at individual and community levels. Likewise, social capital variables are significant predictors of health status when used alone and when they are controlled by human capital covariates. These findings suggest that human capital and social capital influence health status independently of each other. Finally, this study sheds light on whether social capital collectively benefits members of a community in transitional countries beyond the individual benefits. In Armenia and Azerbaijan, community level differences in health status are rooted in "compositional" differences between social capital of individuals in the communities rather than at the community "contextual" level. In Georgia, by contrast, the beneficial effect of social capital can be simultaneously observed at the individual "compositional", and community "contextual" levels. These findings suggest that neither "compositional" nor "contextual" models of the social capital effect of health status can apply to all transitional societies universally.

Income and health in Canada: Canadian researchers' conceptualizations make policy change unlikely.

The research reported here identified and evaluated gaps in Canadian knowledge and research activity concerning the role of income and its distribution in influencing health outcomes. The study consisted of an analysis of 241 recent Canadian research studies, the components of which were compared with 40 U.K. and 40 Finnish studies that applied advanced conceptualizations of the income-health relationship. Canadian health researchers rarely made explicit their conceptualizations of how income was approached in their studies, and most did not identify the structural mechanisms that mediate the income-health relationship. There were few Canadian longitudinal studies capable of illuminating the role of income in health across the lifespan. Many Canadian studies identified pathways by which income might influence health, but these conceptualizations were underdeveloped. Canadian researchers need to strengthen their conceptualizations of how income and its distribution affect health. While empirical research is only one contributor to positive policy change, the narrow nature of Canadian work will do little to influence this process. Interdisciplinary work on the political, economic, and social forces that contribute to income inequalities has the potential, when combined with political and social action, to facilitate public policy in support of health.

Epidemiological sociology and the social shaping of population health.

When biomedical knowledge and technology create the capacity for humans to avoid disease and circumvent early death, sociological factors become more, not less important for population health. The transformation of disease causation from cruel fate, accident, and bad luck to circumstances that are under some degree of human control facilitates a powerful social shaping of disease and death. When humans have control, it is their policies, their knowledge, and their behaviors that shape the consequences of biomedical accomplishments, and thereby extant patterns of disease and death. I propose a "social shaping approach" that can frame our understanding of these processes and allow us to take action to optimize population health. Support for this approach is garnered from evidence of dramatic improvements in population health and in the uneven distribution of those improvements across persons, places, and times. Health improvements suggest that humans have gained control of disease whereas the uneven and very slow spread of such improvements underscores the critical importance of social factors. But the evidence presented represents a stick figure at best, one that needs to be filled in by a well-supported "epidemiological sociology" that uses a wide range of sociological concepts and theories to elucidate the social shaping of disease and death. Absent a robust societal investment in epidemiological sociology, population health will reside below its optimal level and the maldistribution of health-enhancing innovations will continue to create health disparities.

Clinical pathways in 17 European Union countries: a purposive survey.

We undertook a survey of clinical pathways across the 25 European Union countries, Australia. Fifty-one questionnaires were completed by largely self-selected experts from 17 countries. Respondents reported that pathways were important and were becoming increasingly widely used (although the rate of progress was highly variable). One important constraint was reported to be a cultural aversion among doctors that arises at least in part from the implication that pathways require multidisciplinary teamwork which will prejudice medical autonomy. In other words, pathways challenge clinical professional sub-cultures. Other constraints included lack of encouragement by external parties, such as purchasers, with limited financial support for pathway development and implementation and service purchasing that did not reward care providers who use pathways. The obvious implication of the survey is that more needs to be done to achieve a common understanding of pathways. In spite of the large quantity of published papers, survey respondents reported that there are many health professionals who have only a superficial understanding at best.

Modernized education of traditional medicine in Korea: is it contributing to the same type of professionalization seen in Western medicine?

In Korea, the teaching of traditional medicine (TM) has been institutionalized for more than five decades, and accordingly the formulated educational system has a structure similar to that of Western medicine (WM). The authors therefore assumed that TM and WM students would share similar attitudes and values regarding professionalism. To test this hypothesis, we administered a questionnaire to TM students nationwide, and compared the results with those of WM students. We found that, despite the large differences in philosophy, concepts, and clinical content between the medical disciplines, the professional socializations of TM and WM students were progressing in a similar way.