Natural History and Clinical Features of Amyotrophic Lateral Sclerosis (ALS)

Trial Parameters

Brief Summary

1. Describe the distribution of ALS in mainland China, to explore the differences in the number of ALS in different times, regions and populations in order to further explore the causes affecting the distribution of ALS; 2. To investigate the cause of ALS in mainland China in the crowd disease development process and the corresponding characteristics change ; 3. To explore the effect of prognosis of ALS;

Eligibility Criteria

Inclusion Criteria: \- Patients were diagnosed with ALS recruited from all participant clinical centers.The diagnosis of ALS was made using the revised El Escorial criteria for definite, probable, lab-supported, and possible. Exclusion Criteria: * Decline to follow-up.

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