Biostatistics 2:163-171 (2001)
© 2001 Oxford University Press
Large tables
Leukaemia Research Fund Centre for Clinical Epidemiology, University of Leeds, Leeds, UK. g.r.law{at}leeds.ac.uk
Nuffield College, University of Oxford, Oxford, UK
London School of Hygiene and Tropical Medicine, London, UK
Leukaemia Research Fund Centre for Clinical Epidemiology, University of Leeds, Leeds, UK
Nuffield College, University of Oxford, Oxford, UK
The traditional exploration of large contingency tables leads to multiple comparisons with the inherent generation of chance associations. To allow for this, a simple empirical Bayesian approach is used here to derive estimates of association shrunk towards a global mean. Estimates are displayed on ordered normal plots, to allow visual detection of outliers, with the addition of guide rails, derived from simulation, to facilitate their detection. The methods, and the interpretation of results, are illustrated using a large table of occupations for cancer registrations in England and Wales for 197190.
Keywords: Empirical Bayesian; Proportional registration ratio; Ordered normal plot; Occupational cancer