Importance of Case Definition in Epidemiological Studies
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چکیده
منابع مشابه
Definition of hip osteoarthritis for epidemiological studies.
hormonal and reproductive factors, and finally environental influences, the main one being occupational and leisure time activities. The outcome of osteoarthritis and its predictors was also considered in a separate session. These themes were introduced by plenary lectures and an invited discussant then evaluated the material presented, together with newer data from the proffered abstracts. The...
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OBJECTIVES There are no agreed criteria for osteoarthritis (OA) of the knee in population studies. The radiographic scoring system of Kellgren and Lawrence has been the system most used in the past and although other methods have been developed, comparisons have not been performed. Therefore these grading systems were compared in radiographs from a general population sample. METHODS Anteropos...
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BACKGROUND Pontiac fever is usually described in epidemic settings. Detection of Pontiac fever is a marker of an environmental contamination by Legionella and should thereby call for prevention measures in order to prevent outbreak of Legionnaire's disease. The objective of this study is to propose an operational definition of Pontiac fever that is amenable to epidemiological surveillance and i...
متن کاملThe importance of epidemiological studies should not be downplayed.
Epidemiology as the study of distribution and determinants of disease frequency in human populations can and should be considered a basic science in medicine. Indeed, epidemiological principles and methods (including methods of statistical analysis) form the basis of any medical research, from case reports and other descriptive studies to cohort studies and experimental clinical trials. A rando...
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ژورنال
عنوان ژورنال: Neuroepidemiology
سال: 2011
ISSN: 1423-0208,0251-5350
DOI: 10.1159/000332609