Trends in Prevalence and Disability-Adjusted Life-Years of Alzheimer’s Disease and Other Dementias in China from 1990 to 2019

Author:

Zhu Zeyu,Zheng Zhilin,Zhou Chen,Cao Lanxiao,Zhao Guohua

Abstract

<b><i>Introduction:</i></b> China has the largest population of people with dementia in the world and is estimated to have approximately a quarter of the entire population with dementia worldwide, bringing a heavy burden on the public and healthcare systems. We aimed to analyze the burden of Alzheimer’s disease and other dementias in China over the past three decades. <b><i>Methods:</i></b> The data on disease burden owing to Alzheimer’s disease and other dementias in China from 1990 to 2019 were extracted from the Global Burden of Disease (GBD) 2019 datasets. The estimated annual percentage changes (EAPCs) were calculated to assess the temporal trends, and the ratio of years lived with disability (YLDs) to disability-adjusted life-years (DALYs) was used as an indicator to evaluate the healthcare system. <b><i>Result:</i></b> In China, the overall age-standardized rates (ASRs) of the prevalence and DALYs of Alzheimer’s disease and other dementias increased from 1990 to 2019, and their EAPCs were 0.66 (95% confidence interval [CI], 0.57–0.75) and 0.26 (95% CI, 0.21–0.31), respectively. ASRs and the total number of dementia in females remained higher than in males, but the upward trend in ASRs among men was more pronounced than in women. The female-to-male ratio of the age-standardized DALY rate peaked in the 75–79 year age group in 2019 (female-to-male ratio of 1.32). The YLDs:DALYs ratio in China experienced a gradual increase and finally stayed above the global average since 2011. <b><i>Conclusion:</i></b> China has experienced a remarkably rising burden of dementia over the past three decades. The more significant burden of dementia was in females, but the potentially increasing burden of dementia in males cannot be underestimated.

Publisher

S. Karger AG

Subject

Neurology (clinical),Epidemiology

Reference25 articles.

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