Disease Statistics

Prevalence is the total number of cases of a disease in a given population at a specific time, not the number of individuals.

Condition National prevalence Data source
Alzheimer's Disease 5,300,000 Alzheimer's Association: 2016 Alzheimer's Disease Facts and Figures
ALS 30,000 ALS Association: Facts You Should Know
Anorexia, bulemia and binge disorders 30,000,000 National Eating Disorder Association: Getting the Facts on Eating Disorders
Anxiety Disorders 40,000,000 National Institute of Mental Health: Anxiety Disorders
Ataxia 150,000 National Ataxia Foundation: Fact Sheets
ADHD (ages 4-17) 6,400,000 Centers for Disease Control and Prevention: Data & Stastistics
Autism 1 in 68 8-year-olds Centers for Disease Control and Prevention: Morbidity and Mortality Weekly Report
Bipolar Disorder 8,500,000 National Institute of Mental Health: Bipolar Disorder Among Adults
Blephoraspasm 16,000 Benign Essential Blephoraspasm Research Foundation: Risk Factors for Blepharospasm (PDF)
Blindness and Visual Impairments 20,000,000 American Foundation for the Blind: About Us
Cerebral Palsy 764,000 MyChild at CerebralPalsy.org: Prevalence of Cerebral Palsy
Chronic Fatigue Syndrome 2,500,000 Institute of Medicine of the National Academies: Beyond  Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Redefining an Illness
Hearing Impaired 48,000,000 Hearing Loss Association of America: Public Policy and Advocacy Agenda
Depression (Major) 18,200,000 National Institute of Mental Health: Major Depression Among Adults
Developmental Disabilities 1 in 6 children Centers for Disease Control and Prevention: Key Findings
Diabetic Neuropathy 17,400,000 National Institute of Diabetes and Digestive and Kidney Diseases: Diabetic Neuropathies
Dyslexia 1 in 5 people American Dyslexia Association: What is Dyslexia?
Epilepsy 2,300,000 National Institute of Neurological Disorders and Stroke: Curing the Epilepsies: The Promise of Research
Fibromyalgia 5,000,000 Centers for Disease Control and Prevention: Fibromyalgia
Huntington's disease 30,000 Huntington's Disease Society of America: The Scope of HD
Macular degeneration 10,000,000 American Macular Degeneration Foundation: What is Macular Degeneration?
Migraines 28,000,000 American Headache Society: Epidemiology and Impact of Headache and Migraine (PDF)
Multiple Sclerosis 350,000 National Institute of Neurological Disorders and Stroke: Multiple Sclerosis: Hope Through Research
Neurofibromatosis 100,000 National Institute of Neurological Disorders and Stroke: Neurofibromatosis Fact Sheet
Pain (chronic) 100,000,000 National Institute of Neurological Disorders and Stroke: Pain: Hope Through Research
Parkinson's disease 1,000,000 Parkinson's Disease Foundation: Statistics on Parkinson's
Schizophrenia 1.1% of U.S. Adult Population National Institute of Mental Health: Schizophrenia
Sleep or Wakefullness Disorders 70,000,000 Centers for Disease Control and Prevention: Insufficient Sleep is a Public Health Problem
Spinal cord injury 270,000 National Spinal Chord Injury Statistical Center: Spinal Cord Injury Facts and Figures (PDF)
Stroke 2.6% of adults Centers for Disease Control and Prevention: Cerebrovascular Disease or Stroke
Substance Abuse Disorders 20,200,000 Substance Abuse and Mental Health Services Administration: Mental and Substance Use Disorders
Tinnitus (chronic) 20,000,000 American Tinnitus Association: Understanding the Facts
Tourette's Syndrome  1% of children Tourette Association of America: The Spectrum of Tourette Syndrome and Tic Disorders (PDF)
Trigeminal Neuralgia .3% of general population International Association for the Study of Pain: Global Year Against Orofacial Pain (PDF)
Tumors (brain and nervous system) 700,000 American Brain Tumor Association: Brain Tumor Statistics
Vestibular and balance disorder 69,000,000 Vestibular Disorders Society: Understanding Vestibular Disorder