The Japan ALS severity scale is according to the severity classification of the Specified Disease Treatment Research Program for ALS of the Ministry of Health, Labor and Welfare of Japan.
Patient selection: amyotrophic lateral sclerosis (ALS)
Clinical Status
Grade
able to work or do housework
1
unable to work but lives independently
2
requires assistance in ADL
3
respiratory insufficiency; difficulty coughing out sputum; dysphagia
4
tracheostomy tube; tracheostomy with positive pressure ventilation; feeding tube
5
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