| A clinical staging system for amyotrophic lateral sclerosis in which stage is determined by loss of independence in walking, self-care, swallowing, communicating and breathing, using selected items from the Amyotrophic Lateral Sclerosis Functional Rating Scale or Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised, with stages 0 to 4 reflecting the number of domains affected and stage 5 representing death. |
