Prevalence and Incidence of Sjogren's Syndrome


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About prevalence and incidence statistics: The term 'prevalence' of Sjogren's Syndrome usually refers to the estimated population of people who are managing Sjogren's Syndrome at any given time. The term 'incidence' of Sjogren's Syndrome refers to the annual diagnosis rate, or the number of new cases of Sjogren's Syndrome 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.

Prevalance of Sjogren's Syndrome: 1 to 4 million people with Sjogren’s Syndrome (NIAMS)
Prevalance Rate: approx 1 in 272 or 0.37% or 1 million people in USA [about data]
Undiagnosed prevalence of Sjogren's Syndrome: estimated 2 million
Undiagnosed prevalence rate: approx 1 in 136 or 0.74% or 2 million people in USA [about data]
Prevalance of Sjogren's Syndrome: Experts believe 1 to 4 million people have the disease. 1 ... Experts believe 1 to 4 million people have the disease. 2

Prevelance statistics about Sjogren's Syndrome: The following statistics relate to the prevalence of Sjogren's Syndrome:

  • 90% of cases of Sjogren’s Syndrome occurs in women in the US (NIH, The National Women’s Health Centre, 2004)
  • 1 to 4 million cases of Sjogren’s Syndrome in the US (NIH, The National Women’s Health Centre, 2004)
  • Dry eye prevalence of about 10 million (some due to Sjogren's)


Footnotes:
1. excerpt from Questions and Answers About Sjögren's Syndrome: NIAMS
2. excerpt from Questions and Answers About Sj”gren's Syndrome: NIAMS

Last revision: June 16, 2003

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