Global burden of Alzheimer’s disease and other dementias in adults aged 65 years and over, and health inequality related to SDI, 1990–2021: analysis of data from GBD 2021

The global population aged 65 and older experiences a significant reduction in healthy life expectancy due to dementia. The burden of disease in most countries is higher than the minimum disease burden associated with SDI in those countries. The burden of disease in low and middle SDI countries has been showing an increasing trend. The gap in disease burden among regions with different SDI levels is also continuously narrowing.