all patients registered in 17 selected French OFSEP centres with core dataset with a sufficient level of data
Diagnosis a of definite or probably MS according to Poser or McDonald criteria. With an MS onset date between January 1st, 1960 and December 31st, 2015.
With a postal residence address well informed in the OFSEP database.
You may not be if
MS patients with less than one year's disease duration by the study end will be excluded.
Clareo Health | Influence of Socio-Economic Factor on Net Survival in Patients With Multiple Sclerosis in France ( ECOVIMUS).