Hand-held cardiac ultrasound screening performed by family doctors with remote expert support interpretation.

OBJECTIVE: To assess the usefulness of hand-held cardiac ultrasound (HCU) performed by family doctors (FDs) in primary care, with web-based remote expert support interpretation, in a cohort of patient with symptoms or physical examination signs suggestive of cardiovascular disease. METHODS: This prospective observational study included 1312 consecutive patients, in three remote primary care areas, with symptoms or physical examination signs suggestive of cardiovascular disease. In 859 patients (group A), FDs had indicated conventional echocardiography (CE), and in 453 (Group B) the study was performed to complement the physical examination. HCU was carried out by 14 FDs after a short training period. The scans and preliminary FD reports were uploaded on a web-based program for remote expert support interpretation in <24 h. RESULTS: Experts considered HCU to be inconclusive in 116 (8.8%) patients. FD and expert agreement on diagnosis was moderate (K=0.40-0.70) except in mitral stenosis (K=0.29) and in left atrial dilation (K=0.38). Diagnostic agreement between expert interpretation and CE was good (K=0.66-0.85) except in mitral stenosis (K=0.43). After remote expert interpretation, conventional echocardiograms were finally requested by FDs in only 276 (32.1%) patients, and discharges increased by 10.2%. Furthermore, significant heart diseases were diagnosed in 32 (7%) patients of group B. CONCLUSIONS: HCU performed at the point of care by FDs with remote expert support interpretation using a web-based system is feasible, rapid and useful for detecting significant echocardiographic abnormalities and reducing the number of unnecessary echocardiographic studies.

Monitoring the cluster of high-risk mortality areas in the southwest of Spain.

Inspired by a previous study showing a striking geographical mortality clustering, not attributable to chance, in the south-western region of Spain in 1987-1995, the authors have conducted an ecological study of time trends in all-cause mortality risk between 1987-1995 and 1996-2004 in 2,218 small areas of Spain. To identify high-risk areas, age-adjusted relative risks for each area, stratified by sex and time period, were computed using a Bayesian approach. Areas of high-risk in both periods, or in the second period only, were identified. Annual excess mortality and percentage of people living in these high-risk areas, again stratified by sex and time period, were estimated. The cluster of high mortality risk areas identified in the southwest of Spain during 1987-1995 persisted in the period 1996-2004 with an increase in the number of high-risk areas and in annual excess of mortality. These increases showed a gender difference, being more pronounced in women.

Methods for the study of employment relations and health inequalities in a global context.

The authors describe the major methods and sources of information used in the EMCONET study for researching global, employment-related health inequalities. A systematic review of the literature provides valuable knowledge for research in this area. However, the limited number of studies, the poor quality of methods used, and a lack of theories or concepts have produced inconsistent results. To minimize bias from these limitations and to reach a comprehensive understanding of the complexity and health effects of global employment conditions, this article outlines key strategies for a synthetic, comprehensive, participatory approach: adapting transdisciplinary knowledge acquisition, building a theoretical model, employing multiple sources for data collection, and using a variety of methods (qualitative/ quantitative studies and narrative knowledge). This approach provides solutions to important research and policy needs regarding the global context of key employment relations, social mechanisms, and health inequalities. The strategies are adapted to synthesize input from several disciplines (epidemiology, sociology, and political science), social actors, and institutions. The study's main sources of information are a variety of digital, bibliographic databases; the authors reviewed the scientific literature from 1985 to 2008 and books, reports, and other documents from 2000 to 2008.

Six employment conditions and health inequalities: a descriptive overview.

Standard full-time permanent employment-providing a minimal degree of stability, income sustainability, workers' empowerment, and social protection-has declined in the high-income countries, while it was never the norm in the rest of the world. Consequently, work is increasingly affecting population health and health inequalities, not only as a consequence of harmful working conditions, but also because of employment conditions. Nevertheless, the health consequences of employment conditions are largely neglected in research. The authors describe five types of employment conditions that deviate from standard full-time permanent employment--precarious employment, unemployment, informal employment, forced employment or slavery, and child labor--and their health consequences, from a worldwide perspective. Despite obvious problems of measurement and international comparability, the findings show that, certainly in the low-income countries, these conditions are largely situated in informality, denying any possible standard of safety, protection, sustainability, and workers' rights. Considerable numbers of the world's working people are affected in geographically and socioeconomically unequal ways. This clearly relates nonstandard employment conditions to health equity consequences. In the future, governments and health agencies should establish more adequate surveillance systems, research programs, and policy awareness regarding the health effects of these nonstandard employment conditions.

Unemployment, informal work, precarious employment, child labor, slavery, and health inequalities: pathways and mechanisms.

The study explores the pathways and mechanisms of the relation between employment conditions and health inequalities. A significant amount of published research has proved that workers in several risky types of labor--precarious employment, unemployment, informal labor, child and bonded labor--are exposed to behavioral, psychosocial, and physio-pathological pathways leading to physical and mental health problems. Other pathways, linking employment to health inequalities, are closely connected to hazardous working conditions (material and social deprivation, lack of social protection, and job insecurity), excessive demands, and unattainable work effort, with little power and few rewards (in salaries, fringe benefits, or job stability). Differences across countries in the social contexts and types of jobs result in varying pathways, but the general conceptual model suggests that formal and informal power relations between employees and employers can determine health conditions. In addition, welfare state regimes (unionization and employment protection) can increase or decrease the risk of mortality, morbidity, and occupational injury. In a multilevel context, however, these micro- and macro-level pathways have yet to be fully studied, especially in middle- and low-income countries. The authors recommend some future areas of study on the pathways leading to employment-related health inequalities, using worldwide standard definitions of the different forms of labor, authentic data, and a theoretical framework.

Policies and interventions on employment relations and health inequalities.

The association between certain increasingly pervasive employment conditions and serious health inequalities presents a significant policy challenge. A critical starting point is the recognition that these problems have not arisen in a policy vacuum. Rather, policy frameworks implemented by governments over the past 35 years, in conjunction with corporate globalization (itself facilitated by neoliberal policies), have undermined preexisting social protection policies and encouraged the growth of health-damaging forms of work organization. After a brief description of the context in which recent developments should be viewed, this article describes how policies can be reconfigured to address health-damaging employment conditions. A number of key policy objectives and entry points are identified, with a summary of policies for each entry point, relating to particular employment conditions relevant to rich and poor countries. Rather than trying to elaborate these policy interventions in detail, the authors point to several critical issues in relation to these interventions, linking these to illustrative examples.

The solution space: developing research and policy agendas to eliminate employment-related health inequalities.

As in many other areas of social determinants of health, policy recommendations on employment conditions and health inequalities need to be implemented and evaluated. Case studies at the country level can provide a flavor of "what works," but they remain essentially subjective. Employment conditions research should provide policies that actually reduce health inequalities among workers. Workplace trials showing some desired effect on the intervention group are insufficient for such a broad policy research area. To provide a positive heuristic, the authors propose a set of new policy research priorities, including placing more focus on "solving" and less on"problematizing" the health effects of employment conditions; developing policy-oriented theoretical frameworks to reduce employment-related inequalities in health; developing research on methods to test the effects of labor market policies; generalizing labor market interventions; engaging, reaching out to, and holding onto workers exposed to multiple forms of unhealthy employment conditions; measuring labor market inequalities in health; planning, early on, for sustainability in labor market interventions; studying intersectoral effects across multiple interventions to reduce health inequalities; and looking for evidence in a global context.