The prevalence of multiple sclerosis (MS) has increased substantially in many regions around the world since 1990, according to The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD). These recent findings will be useful for resource allocation and planning in health services. Researchers assessed the epidemiology of MS from 1990 to 2016. Data on prevalence and deaths are summarized in the indicator, disability-adjusted life-years (DALYs), which was calculated as the sum of years of life lost (YLLs) and years of life lived with a disability. They found:
- In 2016, there were 2,221,188 prevalent cases of MS globally, which corresponded to a 10.4% increase in the age-standardized prevalence since 1990.
- The highest age-standardized MS prevalence estimates per 100,000 persons were in high-income North America (164.6), western Europe (127.0), and Australasia (91.1), and the lowest were in eastern sub-Saharan Africa (3.3), central sub-Saharan African (2.8), and Oceania (2.0).
- There were 18,932 deaths due to MS and 1,151,478 DALYs due to MS in 2016.
- Globally, age-standardized death rates decreased significantly (change −11.5%), whereas the change in age-standardized DALYs was not significant (−4.2%,).
GBD 2016 Multiple Sclerosis Collaborators. Global, regional, and national burden of multiple sclerosis 1990–2016: A systematic analysis for the Global Burden of Disease Study 2016. Lancet Neurol. 2019;18(3):269-285. doi:10.1016/S1474-4422(18)30443-5.