[Errors of measurement and epidemiology].
The quantification of measurement errors is rarely considered during the preparation of a study protocol in epidemiology. This is in contradiction with the impact of these errors on the assessment of degree of association between various measures, which is often the objective of these protocols. A few important definitions of measurement errors are first proposed. The impact of these errors on the assessment of measures of central tendency and association is studied through examples and simple simulations. These measures must be exact since they play such an important role in estimating risk factors or in evaluating diagnostic tests.
Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada.
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Bigras-Poulin
D000704:Analysis of Variance; D000818:Animals; D002985:Clinical Protocols / Q000592:standards*; D003951:Diagnostic Errors; D004812:Epidemiologic Methods / Q000662:veterinary*; D015203:Reproducibility of Results; D012307:Risk Factors; D012680:Sensitivity and Specificity
Erreurs de mesure et épidémiologie.