Calculates the Expanded Disability Status Scale (EDSS) for MS severity (0–10): 0 = normal neurological exam; 1.0–1.5 = no disability, minimal signs; 2.0–2.5 = minimal disability; 3.0–4.5 = moderate disability, fully ambulatory; 5.0–5.5 = ambulatory ~200m without aid; 6.0 = unilateral aid to walk 100m; 6.5 = bilateral aid; 7.0–7.5 = wheelchair; 8.0–8.5 = restricted to bed; 9.0–9.5 = bedridden helpless; 10 = death due to MS.
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