Descriptive Comparison of Populations by Rates: The Analysis of Departures from the Equirates Model

• Activity Number: 611
• Type: Topic Contributed
• Date/Time: Thursday, August 5, 2010 : 8:30 AM to 10:20 AM
• Sponsor: Social Statistics Section
• Author(s): Mauricio Sadinle*+
• Companies: Universidad Nacional de Colombia
• Keywords: Correspondence Analysis ; External-cause Mortality ; Log-linear Models ; Standardized Rates

Abstract

A variation of the correspondence analysis is proposed taking into account jointly the distribution and the magnitude of the occurrence-rates of some type of events in order to compare populations. The analysis is based in graphical representations of the data's departures from a model in which all the populations have the same occurrence-rates for each type of event, named as the equirates model. In the graphical display proposed of the departures from the equirates model one can identify straight lines along which the populations that have the same distribution of rates but differ in magnitude are located. In order to illustrate the method, we present an application to the study of external-cause mortality in the 35 largest Colombian municipalities.