Amyotrophic lateral sclerosis (ALS)

What’s Your Rare IQ?

When are the symptoms of Stargardt disease most commonly seen?

Neuromyelitis optica spectrum disorders (NMOSD)

Rare View

60% of tuberous sclerosis cases are diagnosed in the first year. Diagnosis slows down considerably after the first year.

Measured by: prevalence

Disease	Est US prevalence	Inheritance	Age of onset
Narcolepsy	150,000 - 200,000
Lennox-Gastaut syndrome	45,000 – 50,000
Young onset parkinson’s disease	40,000 – 45,000
Tuberous sclerosis	27,000 – 37,500
Huntington disease	22,750 – 35,000
Tibial muscular dystrophy	19,500 – 30,000
Amyotrophic lateral sclerosis	17,000 – 30,000
Duchenne’s muscular dystrophy	15,000 – 20,000
Congenital muscular dystrophy	15,000 – 20,000