Abstract
ObjectiveTo achieve the goal of “healthy China 2030”, reasonable health policies must be developed based on the changes of death spectrum. We aim to investigate the temporal patterns of life expectancy (LE) and age/cause-specific contributions from 1990 to 2016.MethodsJoinpoint regression model was used with Arriaga’s decomposition method.ResultsLE in China has reached to 76.3 years in 2016 with an increase of 9.44 years from 1990. From 1990 to 2002, a remarkable reduction in infant mortality accounted for an increase of 1.27 years (35.39%) to LE which mainly resulted from diarrhea, lower respiratory, and other common infectious diseases (1.00 years, 27.79%). After 2002, those aged 65+ years contributed most to increased LE and the most prominent causes included cardiovascular diseases (0.67 years, 23.36%), chronic respiratory diseases (0.54 years, 18.76%) and neoplasms (0.39 years, 13.44%). Moreover, the effects of transport injuries changed from negative to positive. After 2007, contributions of transport and unintentional injuries increased especially for males. And for females contributions of cardiovascular diseases sharply increased LE by 1.17 years (32.26%).ConclusionMore attention should be paid to cardiovascular diseases, chronic respiratory diseases and neoplasms which were mainly attributed to the increase of LE, especially for males and elderly population.
Highlights
Life expectancy (LE) is a useful measure of population health due to its capacity for summarizing mortality in a single measure [1]
From 1990 to 2002, a remarkable reduction in infant mortality accounted for an increase of 1.27 years (35.39%) to LE which mainly resulted from diarrhea, lower respiratory, and other common infectious diseases (1.00 years, 27.79%)
More attention should be paid to cardiovascular diseases, chronic respiratory diseases and neoplasms which were mainly attributed to the increase of LE, especially for males and elderly population
Summary
Life expectancy (LE) is a useful measure of population health due to its capacity for summarizing mortality in a single measure [1]. LE represents the average years a person is expected to live based on the overall mortality level of a population. It is an important index reflecting the social economy and healthcare development [2]. Cause-specific death spectrum in China has changed due to changes in lifestyles and living conditions, along with the aging of the population and urbanization [4]. Decomposition methods are ideal for determining the positive and negative contributions of age and cause-specific mortality rates [6]
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