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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.
Lifetime Prevalence. The reported lifetime prevalence of anorexia nervosa among women has ranged from 0.9% - 2.2% and 0.2 - 0.3% in men (Keski-R et al 2008). With regard to bulimia nervosa, estimates of lifetime prevalence among women range from 1.5% to 2% and 0.5% in men.Prevalence of eating disorders in young children is unknown.ating disorders have been reported in up to 4% of adolescents and young adults. The most common age at onset for anorexia nervosa is the mid teens; in 5% of the patients, the onset of the disorder is in the early twenties. The onset of bulimia nervosa is usually in adolescence but may be as late as early adulthood.