Amyotrophic lateral sclerosis 1
How common is Amyotrophic Lateral Sclerosis?
For every 100,000 people, approximately 4-8 have amyotrophic lateral sclerosis (ALS). This seems to be the same around the world, with the exception of specific groups in Guam, a country in the South Pacific, and the Kii Peninsula of Japan. These regions have a higher rate of a type of ALS called ALS-parkinsonism-dementia complex (ALS-PDC), which is a rare, hereditary form.