title: Regression with bivariate grouped data.
abstract: The problem of accounting for the grouping of continuous, bivariate data in regression analyses is considered. Reasons why grouping must be taken seriously are advanced, and a strategy for accounting for grouping is demonstrated. The specific model asserts that, in the absence of grouping, the data would be bivariate normal. This model is used to adjust estimates of parameters in a regression relating disease severity to a grouped exposure variable, using data on pneumoconiosis in English coal miners (Ashford, 1959, Biometrics 15, 573-581). The choice of computing methods is discussed and likelihood formulas are presented.
authors.affiliation: Center for Biostatistics and Epidemiology, Pennsylvania State University College of Medicine, Hershey 17033.
authors.forename: D F
authors.initials: DF
authors.lastname: Heitjan
mesh_terms: D000465:Algorithms; D000704:Analysis of Variance; D001699:Biometry; D016013:Likelihood Functions; D015233:Models, Statistical; D012044:Regression Analysis