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Estimating mortality rates: the role of proportional life expectancy.

Authors
Type
Published Article
Journal
Journal of insurance medicine (New York, N.Y.)
Publication Date
Volume
37
Issue
1
Pages
35–41
Identifiers
PMID: 15895696
Source
Medline
License
Unknown

Abstract

The computation of long-term survival is usually based on adjustments to the conventional life table. Assessing the validity of different types of adjustments can be difficult, partly because of the need to allow for two age-related trends-the decline in the average (normal) life expectancy, as well as in the new (abnormal) estimate. In this paper, we illustrate the value of routinely expressing each new estimate as a percentage of normal at each age. An additional finding has been that in some common disorders this proportional life expectancy (PLE) remains remarkably constant over many years.

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