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Pediatric-Onset Multiple Sclerosis in Finland
In a study of 73 children with clinically isolated syndrome (CIS), 47% were diagnosed with multiple sclerosis (MS) before age 18. The median time from CIS to MS diagnosis for this group was 6 months. The study identified various CIS phenotypes, including optic neuritis (32%) and acute disseminated encephalomyelitis (14%). The prevalence of pediatric-onset MS in the population studied was 5.5 per 100,000.
What this does not proveThe findings do not address long-term outcomes of the cases studied and are limited to children diagnosed at specific hospitals, which may not reflect the overall pediatric population.