title: Probability revision.
abstract: This article examines the principles of probability revision and four different ways of obtaining post-test probabilities: the hypothetical cohort method, likelihood ratios and odds, the Nomogram, and precalculation. The authors then show where pre-test probabilities can be obtained, and then how to interpret multiple tests.
authors.affiliation: Department of Social Preventive Medicine, University of Queensland Medical School, Herston, Australia.
authors.forename: P P
authors.initials: PP
authors.lastname: Glasziou
mesh_terms: D003327:Coronary Disease / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D011237:Predictive Value of Tests; D011320:Primary Health Care / Q000379:methods*; D011336:Probability; D012680:Sensitivity and Specificity