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BMJ, 2010
Researchers conducted a case-control study to investigate whether sleeping environment was associated with sudden infant death syndrome.1 The researchers aimed to include all cases of sudden unexpected death for infants aged between 7 and 364 days from five regions of England with a combined population of more than 17 million people.
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Epidemiologie: Odds Ratio

physiopraxis, 2012
In epidemiologischen Studien sucht man haufig nach Faktoren, die schutzen oder schaden konnen. In Kohortenstudien oder kontrollierten Verlaufsstudien berechnet man dazu das relative Risiko eines Faktors, in Fall-Kontroll-Studien nutzt man die Odds Ratio, das Chancenverhaltnis.
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Kappa and Attenuation of the Odds Ratio

Epidemiology, 1990
This paper explores the relation between reliability and validity for binary variables. An equation is first derived for expressing the kappa coefficient of reliability as a function of true prevalence, sensitivity, specificity, and the degree of correlation of errors within true positives and within true negatives.
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Odds ratios simplified