Decompression of Period Old-Age Mortality: When Adjusted for Bias, the Variance in the Ages at Death Shows Compression

作者：Ediev Dalkhat M^*

来源：Mathematical Population Studies, 2013, 20(3): 137-154.

DOI：10.1080/08898480.2013.816218

• aging
• life expectancy
• longevity
• mortality
• mortality compression
• period mortality
• rectangularization
• senescence

Formal derivations and empirical evidence, in the framework of Fries-Kannisto's hypothesis, show that the indicators of mortality compression based on age-at-death distribution, left-censored at a fixed old age, may be subject to a bias toward showing mortality decompression in the case of a mortality decline. The previously reported increasing variance in ages at death above fixed old ages in developed countries was mainly the effect of a mortality shift, not decompression. When adjusted for this bias, the indicators of variance in ages at death show a compression of period mortality.

• 出版日期2013-7-1
• 单位国际应用系统分析学会(IIASA)