Misclassification of exposure variables is a common problem in epidemiologic studies. This paper compares the matrix method (Barron, 1977, Biometrics 33, 414-418; Greenland, 1988a, Statistics in ...

I fully understand that OR and RR >1.00 means a positive association and that <1.00 is a negative association. However, I'm struggling with wording the interpretation of values less than 1.00 Which is ...

This is a preview. Log in through your library . Abstract The incidence rate ratio is a basic measure of association in epidemiology. We present a simple and efficient method for computing exact ...