Long-Tailed Duration Distributions for Disability in Aged People
Long-Tailed Duration Distributions for Disability in Aged People
复制标题
老年人残疾的长尾持续时间分布
DOI：
10.1143/jpsj.72.2409
复制
发表时间：
2003
影响因子：
1.7
通讯作者：
M. Matsushita
中科院分区：
文献类型：
--
作者：
O. Moriyama;Hiroto Itoh;S. Matsushita;M. Matsushita
分析了对日志的长时间的残疾分布。在患者中，持续时间分布也被一维布朗运动的第一个通过时间分布（FPTD）模仿。分布非常好，FPTD很好地揭示了老年人是从各种内源性疾病（即多种病理学）成功痛苦的随机过程。
Long tails of the duration distributions for disabilities in the aged are analyzed. Log–normal distribution shows excellent fit with various data on the durations of disabilities, irrespective of their severity. Persisting long tails suggest the fractal nature of disability distributions. For approximately 60% of the patients, the duration distributions are also mimicked by the first passage time distribution (FPTD) of one-dimensional Brownian motion. The finding that the data fit the log–normal distribution very well and FPTD fairly well reveals disability for the aged to be a stochastic process of suffering successively from various endogenous diseases, i.e., multiple pathology.