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Diseases » Multiple Sclerosis » Prevalence

Prevalence and Incidence of Multiple Sclerosis

Prevalance of Multiple Sclerosis:

1-in-700 (NIAID) ... see also overview of Multiple Sclerosis.

Prevalance Rate:

approx 1 in 700 or 0.14% or 388,571 people in USA [Source statistic for calcuation: "1-in-700 (NIAID)" -- see also general information about data sources]

Prevalance of types of Multiple Sclerosis:

For details see prevalence of types of Multiple Sclerosis analysis; summary of available prevalence data:

Ophanet, who are a consortium of European partners, currently defines a condition rare when if affects 1 person per 2,000. They list Multiple Sclerosis as a "rare disease". More information about Multiple Sclerosis is available from Orphanet

Prevalance of Multiple Sclerosis:

Multiple sclerosis afflicts 1 in 700 people in this country. (Source: excerpt from Understanding Autoimmune Disease: NIAID)

Prevelance statistics for Multiple Sclerosis:

The following statistics relate to the prevalence of Multiple Sclerosis:

  • 300,000 Americans
  • 146,892 people in the USA 1996 1
  • 250,000 to 500,000 cases in the US (Multiple Sclerosis Foundation, NIH, 2004)
  • Estimated 250,000 to 500,000 Americans (NWHIC)
  • more statistics...»

More Statistics about Multiple Sclerosis:

  • Hospitalization statistics
  • All statistics for Multiple Sclerosis

    About prevalence and incidence statistics:

    The term 'prevalence' of Multiple Sclerosis usually refers to the estimated population of people who are managing Multiple Sclerosis at any given time. The term 'incidence' of Multiple Sclerosis refers to the annual diagnosis rate, or the number of new cases of Multiple Sclerosis diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.

    1. Rose and Mackay, 1998, The Autoimmune Diseases, Third Edition


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