نتایج جستجو برای: epidemiological comparison
تعداد نتایج: 669708 فیلتر نتایج به سال:
the links between disasters and violence either self-directed or interpersonal are now more recognized. nevertheless, the amount of research is limited. this article discusses the underlying association of disasters and violence and it also outlines a systematic review of the literature from 1976 to 2011. finally, it concludes and recommends particular approaches for further epidemiological res...
Comparison of epidemiological markers of Salmonella strains isolated from different sources in Spain
To critically evaluate the association between diesel exhaust (DE) exposure and the risk of lung cancer, we conducted a systematic review of published epidemiological evidences. To comprehensively identify original studies on the association between DE exposure and the risk of lung cancer, literature searches were performed in literature databases for the period between 1970 and 2013, including...
BACKGROUND Although radiological pneumonia is used as an outcome measure in epidemiological studies, there is considerable variability in the interpretation of chest radiographs. A standardized method for identifying radiological pneumonia would facilitate comparison of the results of vaccine trials and epidemiological studies of pneumonia. METHODS A WHO working group developed definitions fo...
Measurement of telomere length is widely used in epidemiologic studies. Insufficient standardization of the measurements processes has, however, complicated the comparison of results between studies. We aimed to investigate whether DNA extraction methods have an influence on measured values of relative telomere length (RTL) and whether this has consequences for epidemiological studies. We perfo...
Public health problems have been analyzed over time using different approaches involving a variety of methodological and theoretical models. The classical epidemiological model and the social epidemiological model are two examples of models used in public health research. Although each of these models covers a whole range of public research approaches, it is possible to identify the different t...
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