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Choice of indicator is important
| The first 150 words of the full text of this article appear below. |
EDITOR
The paper by Sacker et al,1 and the associated
editorial by Vågerö,2 discuss differences in health
inequality between men and women measured with two alternative schemes.
We have been investigating a similar problem
the indicators that are
most sensitive for measuring health inequalities in an older population.
Sacker et al included only those people in paid work in 1981. The
1981 census shows that 20% of men and 49% of women in the age groups
they consider were not working, so this restriction will have resulted
in many people in the sample being excluded. Such exclusions are known
to result in bias.3 In the older population the use of
classifications based on current occupation is problematic. Other
common indicators of socioeconomic status, such as income and
education, also present difficulties. This is because of the strong
association between income and employment status and because most of
today's older population (particularly