6% had relapsing remitting
multiple sclerosis, 9.4% primary progressive
multiple sclerosis and 6% clinically isolated syndrome.
Nearly 40% of our multiple sclerosis patients with disease duration >10 years (mean = 16.2 ± 5.3 years) remained with no or mild disability (Expanded Disability Status Scale [EDSS] 3). Also, about 30% of patients with relapsing remitting multiple sclerosis showed benign disease evolution (EDSS 3) more than 20 years (mean = 24.0 ± 3.3) after onset.