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Updated: Sep 8, 2025

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Published on: September 30, 2020
Impact of population ageing on stroke-related disability-adjusted life years: a global decomposition analysis
Yannan Wang1, Hexi Wang1, Yue Fang2
1Cadre's Ward, General Hospital of Northern Theater Command, No.83,Wenhua Road,Shenhe District, Shenyang, 110016, China.
Background:
This study aims to analyze the global impact of population ageing on stroke-related disability-adjusted life years (DALYs) from 1990 to 2021.
Methods:
Decomposition analysis was conducted using Global Burden of Disease (GBD) data to isolate the contributions of population size, ageing, and age-specific stroke rates to stroke-related DALYs.
Results:
Population ageing was found to be the dominant driver of stroke-related DALYs globally. From 1990 to 2021, population ageing contributed to an increase of 55.24 million stroke-related DALYs. The greatest impact was observed in Middle-SDI regions, where stroke-related DALYs attributable to population ageing rose significantly. Among the GBD regions, East Asia had the highest contribution to stroke-related DALYs attributed to population ageing for males (100.41%), while High-income Asia Pacific recorded the highest for females (97.49%). In stroke subtypes, ischemic stroke was the most significantly affected by population ageing, while subarachnoid hemorrhage (SAH) was the least affected.
Conclusions:
Population ageing is a dominant driver of the growing global stroke burden, necessitating targeted public health interventions for ageing populations.
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