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Diseases » Myasthenia Gravis » Prevalence

Prevalence and Incidence of Myasthenia Gravis

Prevalance of Myasthenia Gravis:

about 5 per 100,000 to 14 per 100,000 (NWHIC) ... see also overview of Myasthenia Gravis.

Prevalance Rate:

approx 1 in 20,000 or 0.00% or 13,600 people in USA [Source statistic for calcuation: "about 5 per 100,000 to 14 per 100,000 (NWHIC)" -- see also general information about data sources]

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

Prevalance of Myasthenia Gravis:

Myasthenia gravis occurs in about five people per 100,000. (Source: excerpt from MYASTHENIA GRAVIS: NWHIC)

Prevelance statistics for Myasthenia Gravis:

The following statistics relate to the prevalence of Myasthenia Gravis:

  • 146,892 people in the USA 1996 with myasthenia gravis1
  • 5 to 14 people per 100,000 population have myasthenia gravis in the US (NIH, The National Women’s Health Centre, 2004)
  • more statistics...»

More Statistics about Myasthenia Gravis:

  • Hospitalization statistics
  • All statistics for Myasthenia Gravis

    About prevalence and incidence statistics:

    The term 'prevalence' of Myasthenia Gravis usually refers to the estimated population of people who are managing Myasthenia Gravis at any given time. The term 'incidence' of Myasthenia Gravis refers to the annual diagnosis rate, or the number of new cases of Myasthenia Gravis 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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