During the past several years there has been a growing interest in epidemiologic investigation, particularly in the field of non-infectious diseases. Although a few books devoted to epidemiology are available, for the most part the subject has been presented in public health and preventive medicine textbooks, in which methodology has often taken second place to a descriptive epidemiology of spe...

Low maternal education is consistently associated with increased risk of preterm delivery (PTD). The interpregnancy interval (IPI), defined as the time between the date of a previous birth and the conception date of the index pregnancy, may mediate this relationship. We estimated controlled direct effects to assess whether hypothetical interventions designed to increase IPIs would reduce the ed...

The Physician Payment Review Commission has examined the potential of profiling physician practice patPR. Lee and A.B. Bindman, Institute for Healty Policy Studies, University of California, San Francisco. P.R. Lee, D.W. Shapiro and R.D. Lasker, Physician Payment Review Commission. A.B. Bindman, Division of General Internal Medicine, San Francisco General Hospital. terns within the context oi c...

Keywords sports medicine, evidence-based regression analysis, effect modifier, epidemiologic, mediation analysis

background: considering the unknown etiology of inflammatory bowel disease (ibd), the epidemiologic evaluation may help to identify the causative agents of the disease. genetic (ethnic) and environmental (e.g., geographic) factors in iran may influence the incidence of the disease. the objective of this study was toâ  determine the demographic and clinical characteristics of the ibd in the city...

To further characterize human infections caused by Rickettsia sibirica mongolitimonae, we tested skin biopsy and swab samples and analyzed clinical, epidemiologic, and diagnostic characteristics of patients with a rickettsiosis. The most common (38%) indigenous species was R. sibirica mongolitimonae. Significantly more cases of R. sibirica mongolitimonae infection occurred during spring and sum...

An outbreak of hantavirus pulmonary syndrome occurred in the Sobradinho Indian settlement of the Kayabí ethnic group in northern Mato Grosso during December 2009-January 2010. We conducted a retrospective study to clarify the outbreak's epidemiologic and clinical characteristics. Results suggest a relationship between the outbreak and deforestation and farming expansion in indigenous areas.

Epidemiology can be considered as a very old science. For example, John Graunt, a statistician, published Natural and Political Observations. In the Bills of Mortality in 1662, he analyzed the mortality rolls in London before the Great Plague, presented one of the first life tables, and reported time trends for many diseases. He provided statist...