Anderson Terence W, Marion Stephen A
Department of Health Care and Epidemiology, Mather Building, 5804 Fairview Ave, V6T 1Z3, University of British Columbia.
J Insur Med. 2005;37(1):35-41.
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.
长期生存的计算通常基于对传统生命表的调整。评估不同类型调整的有效性可能很困难，部分原因是需要考虑两种与年龄相关的趋势——平均（正常）预期寿命的下降，以及新的（异常）估计值的下降。在本文中，我们阐述了在每个年龄将每个新估计值常规表示为正常水平的百分比的价值。另一个发现是，在一些常见疾病中，这种比例预期寿命（PLE）在许多年里保持相当稳定。
