Full Citation
Title: Method for Calculating Healthy Life Expectancy by Including Dynamic Changes of Both Mortality and Health
Citation Type: Dissertation/Thesis
Publication Year: 2010
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Abstract: This thesis incorporates the self-reported health status information from the National Health Interview Survey in the United States into a cohort life table to estimate and forecasthealthy life expectancy, which is the average of years lived in good health. First, the thesis defines the Health Status Index (HSI) representing the proportion of the population of people who are in bad health. Applying the HSI, the main contribution of this thesis is modeling the dynamic changes of both the mortality and health processes by using the Lee-Carter model and constructing their stochastic projections. Based on goodness-of-fit tests we find that the Lee-Carter model fits the data quite well. Healthy life expectancy (HLE) is estimated and projected using Sullivans method by including the stochastic projection of the HSI into cohort life tables. The results show increasing trends of both life expectancy (LE) and healthy life expectancy (HLE), whereas the latter increases faster than the former. Another novelty of this thesis is the inclusion of uncertainty intervals by means of simulation method for expected simulated LE and HLE.We found that HLE have larger uncertainty than LE. Moreover, maless LE and HLE are lower than females but increase faster with larger confidence intervals. The thesis also provides a comparison between models using level and logit HSI formats, and shows that healthy life expectancies derived from the models with logit HSI are slightly lower, and increase slower with narrower confidence intervals than from the level format models, and a logit transformation is superior to the level format by construction.
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Authors: Yang, Ying
Institution: Tilburg University
Department: Network for Studies on Pensions
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Degree: Research Master's
Publisher Location: Tilburg, The Netherlands
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Data Collections: IPUMS Health Surveys - NHIS
Topics: Health
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