By Alfredo Morabia (auth.), Alfredo Morabia (eds.)
Methods, simply as ailments or scientists, have their very own background. it can be crucial for scientists to concentrate on the genesis of the equipment they use and of the context within which they have been developed.
A historical past of Epidemiologic tools and Concepts is predicated on a set of contributions which seemed in "SPM overseas magazine of Public Health", beginning in January 2001. The contributions specialize in the historic emergence of present epidemiological equipment and their relative value at diverse deadlines, instead of on particular achievements of epidemiology in controlling plagues equivalent to cholera, tuberculosis, malaria, typhoid fever, or lung melanoma. The papers current the layout of potential and retrospective reports, and the thoughts of bias, confounding, and interplay. The compilation of articles is complemented by means of an advent and reviews through Prof. Alfredo Morabia which places them within the context of present epidemiological research.
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Additional resources for A History of Epidemiologic Methods and Concepts
This formulation of the notion of risk is tautological. If you accept the definition of the sufficient cause, then of course the risk is the probability that sufficient causes are formed. (... " (Rothman, 1976 p. 590). Thus, the strength of a risk factor depends on the prevalence of the complementary risk factors needed to create a sufficient cause. This result has truly insightful implications with respect to population thinking: "The characterization of risk factors as "strong" or "weak" has no universal basis (...
Why is it so? Farr notes that mortality is 16 Epidemiology: An epistemological perspective insufficient to characterize the "form and nature of diseases". " (Farr, Part II). Let us consider each of these two ways of examining a disease. For the first parameter, "the tendency to destroy life", Farr gives as synonyms the "probability of death", "mortality" and "death percent". 2 %. Farr does not use the word "risk", but risk is the term that we would commonly use today. More specifically, this is a "case fatality risk".
The Framingham Heart Study. Exam 1. Men aged 55-64 years. Source: Tables 13-3-A and B, in (Kannel and Gordon, 1970). 18 100 * Rose wrote "extra deaths per thousand of this population over a 10-year period" but calculations based on the data he used indicate extra deaths per ten thousand over 10 years. are shown as the numbers on top of bars. They add up to 34 extra deaths per 1,000 in this population over a 10-year period, of which only three arise at concentrations at or above 31 0 mg/1 00 ml (8 mmol/1) - which would be called high ("outside the normal range") by conventional clinical standards.
A History of Epidemiologic Methods and Concepts by Alfredo Morabia (auth.), Alfredo Morabia (eds.)