Serum IgE and eosinophil count in allergic rhinitis-Analysis using a modified Bayes' theorem

Using a modified version of Bayes' theorem to determine posttest probability, IgE threshold levels greater than 140 IU/ml and eosinophil counts greater than 80 cells/ml in an individual with clinical signs and symptoms of rhinitis are likely to correlate with an atopic aetiology. This model of probability may be helpful in evaluating individuals for diagnostic skin testing and certain types of allergy-modifying treatment.