An international study led by researchers from the University of New South Wales in Australia has warned that dementia cases could more than double by 2050.
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Researchers analyzed data from more than 38,000 people from 18 countries, with 3,001 participants developing dementia during the follow-up period. Based on this data, experts estimated the rate of new cases of the disease and made global projections, indicating that dementia cases could rise from 11.4 million annually to 24.7 million.
It turns out that dementia affects women more than men. After taking into account age differences, 10.6 new cases per thousand people per year were recorded among women, compared to 8.6 cases among men.
Significant differences also emerged between countries, with the rate of new cases in low- and middle-income countries reaching 13.6 cases per thousand people annually, while the number reached 8.3 in rich countries.
The researchers noted that more than 57 million people worldwide are currently suffering from dementia, and that their number is expected to approach 150 million by 2050. Their study estimates the number of new cases annually, not the total number of patients.
Scientists attribute the projected growth in the disease primarily to the aging population, and stress the need for early diagnosis, prevention of risk factors, and development of medical care to reduce the future burden on health systems.
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