Incidence of ITP
  • Estimated incidence of ITP is 100 cases per million per year or 1 case per 10,000 per year.2
  • The Platelet Disorder Support Association (PDSA) estimates that there are approximately 200,000 people in the United States with ITP. 2
  • Recent studies show similar incidence of ITP in newly diagnosed men and women, with highest incidence in those over 60 years of age.3
  1. Cines D.B., Blanchette V.S. Immune Thrombocytopenic Purpura. New England Journal of Medicine. 2002; 346(13): 995-1008.
  2. Platelet Disorder Support Association website 2007. About ITP. Available at: http://www.pdsa.org/itp-information/index.html. Accessed September 7, 2007.
  3. Neylon et al. Clinically significant newly presenting autoimmune thrombocytopenic purpura in adults: a prospective study of a population-based cohort of 245 patients. Br J Haematol. 2003; 122:966-974.