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Prevalance of Scleroderma: Estimates for the number of people in the United States with systemic sclerosis range from 40,000 to 165,000. By contrast, a survey that included all scleroderma-related disorders, including Raynaud's phenomenon, suggested a number between 250,000 and 992,500.bout prevalence and incidence statistics: The term 'prevalence' of Scleroderma usually refers to the estimated population of people who are managing Scleroderma at any given time.
It is common for patients with a connective tissue disease to have Raynaudâs phenomenon. It occurs in more than 90 percent of people with scleroderma. It is also common in people with systemic lupus erythematosus, rheumatoid arthritis, and SjÃ¶grenâs syndrome.