Publication Abstract

Authors: Miglioretti DL, Heagerty PJ

Title: Marginal modeling of multilevel binary data with time-varying covariates.

Journal: Biostatistics 5(3):381-98

Date: 2004 Jul

Abstract: We propose and compare two approaches for regression analysis of multilevel binary data when clusters are not necessarily nested: a GEE method that relies on a working independence assumption coupled with a three-step method for obtaining empirical standard errors, and a likelihood-based method implemented using Bayesian computational techniques. Implications of time-varying endogenous covariates are addressed. The methods are illustrated using data from the Breast Cancer Surveillance Consortium to estimate mammography accuracy from a repeatedly screened population.