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What difference does the choice of SES make in health inequality measurement?
Author(s) -
Wagstaff Adam,
Watanabe Naoko
Publication year - 2003
Publication title -
health economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.55
H-Index - 109
eISSN - 1099-1050
pISSN - 1057-9230
DOI - 10.1002/hec.805
Subject(s) - inequality , socioeconomic status , index (typography) , econometrics , rank (graph theory) , asset (computer security) , measure (data warehouse) , consumption (sociology) , economics , degree (music) , regression , mathematics , statistics , demographic economics , demography , sociology , population , computer science , social science , mathematical analysis , physics , computer security , combinatorics , database , world wide web , acoustics
This note explores the implications for measuring socioeconomic inequality in health of choosing one measure of SES rather than another. Three points emerge. First, whilst similar rankings in the two the SES measures will result in similar inequalities, this is a sufficient condition not a necessary one. What matters is whether rank differences are correlated with health – if they are not, the measured degree of inequality will be the same. Second, the statistical importance of choosing one SES measure rather than another can be assessed simply by estimating an artificial regression. Third, in the 19 countries examined here, it seems for the most part to make little difference to the measured degree of socioeconomic inequalities in malnutrition among under‐five children whether one measures SES by consumption or by an asset‐based wealth index. Copyright © 2003 John Wiley & Sons, Ltd.