Proportion and characteristics of secondary progressive multiple sclerosis in five European registries using objective classifiers

Secondary progressive multiple sclerosis (SPRS) represents an important stage in the development of multiple sclerosis, but is often difficult to diagnose accurately. A study conducted in five European countries used objective classifiers to determine the proportion and characteristics of SPRS in different registries of multiple sclerosis patients, including the national ReMuS registry. The findings suggest ...