BACKGROUND Electronic linkage to routine administrative datasets, such as the Hospital Episode Statistics (HES) in England, is increasingly used in medical research. Relatively little is known about the reliability of HES diagnostic information for epidemiological studies. In the United Kingdom (UK), general practitioners hold comprehensive records for individuals relating to their primary, sec...

BACKGROUND Circulatory system diseases are the first cause of death in Brazil. OBJECTIVE To analyze the evolution of mortality caused by heart failure, by ischemic heart diseases and by ill-defined causes, as well as their possible relations, in Brazil and in the geoeconomic regions of the country (North, Northeast, Center-West, South and Southeast), from 1996 to 2011. METHODS Data were obt...

OBJECTIVES To analyse the trends and trend changes in myocardial infraction (MI) and coronary heart disease (CHD) admissions, to investigate the effects of the 2007 smoke-free legislation on these trends, and to consider the policy implications of any findings. DESIGN SETTING Liverpool (city), UK. PARTICIPANTS Hospital episode statistics data on all 56 995 admissions for CHD in Liverpool be...

Eighty-one strains ofStaphylococcus aureus that appeared to be tetracycline resistant on the basis of a preliminary disc-diffusion test were examined fro resistance to tetracycline and to the semi-synthetic tetracycline, minocycline. Minimum inhibitory concentration (m.i.c.) values for both drugs were determined after induction of the strains by growth for 2 h in sub-inhibitory concentrations f...

background: in recent years, dust has been the major problem in kermanshah climate. the dust causes undesirable environmental consequences such as human health, economic, and climate change effects. this study investigated the relationship between the dust concentrations and the increased number of patients with respiratory and heart problems admitted to hospitals in kermanshah city in 2011. me...

Abstract Background Elevated lipoprotein(a) [Lp(a)] has been established as marker of cardiovascular [CV] risk, however, it is not commonly assessed. Purpose The aim the study was to characterize patients who underwent their first Lp(a) testing regarding sociodemographic characteristics and clinical outcomes. Methods A retrospective analysis performed on data from 4 million individual in a loca...

Since publication of the American Association of Physicists in Medicine (AAPM) Task Group No. 43 Report in 1995 (TG-43), both the utilization of permanent source implantation and the number of low-energy interstitial brachytherapy source models commercially available have dramatically increased. In addition, the National Institute of Standards and Technology has introduced a new primary standar...

Recently presented new-one subtracted dispersion relations with imposed crossing symmetry condition for the ππ Sand P-wave scattering amplitudes and the well known Roy’s equations with two subtractions have led to a set of many partial wave amplitudes in very wide energy range [1]. They allow e.g. for a very precise and unambiguous determination of scattering lengths and parameters of the f0(60...

BACKGROUND Data regarding deaths in many countries is a reliable source of information on population health status, due to the legal obligation to register the fact of a death and its cause. Such data is widely used to analyse regional health differences, changes in health over time, and to pursue and monitor the effects of health policies. Therefore, it is extremely important that the data is ...