Life Table Entropy Keyfitz H Calculator

Compute Keyfitz' life-table entropy H = e-dagger / e0 from aligned survivor and remaining-life-expectancy columns, including deaths in the terminal age group.

Description

Compute Keyfitz' life-table entropy H = e-dagger / e0 from aligned survivor and remaining-life-expectancy columns, including deaths in the terminal age group.

Compute Keyfitz' life-table entropy H = e-dagger / e0 from aligned survivor and remaining-life-expectancy columns, including deaths in the terminal age group.1

When to use Life Table Entropy Keyfitz H Calculator

Use this mortality or life-table method when age intervals, deaths, exposures, survivorship, and open-ended interval assumptions refer to the same population and period.

l(x)
Survivors l(x) at each single age of the complete life table.
e(x)
Remaining life expectancy e(x) aligned with the survivors.

How the method works

H
Entropy H measuring the sensitivity of e0 to age-specific mortality changes.

Limitations and assumptions

Life-table results depend on age grouping, exposure quality, the treatment of the first and terminal intervals, and assumptions about deaths within each interval. Sparse deaths can make rates unstable.

Alternative or Complementary measures

Complement a summary mortality result with age-specific death rates, survivorship, and exposure counts. A complete life table is preferable when the question involves several ages or remaining life expectancy.

References

  1. Life table — Wikipedia contributors

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