Idiopathic thromobocytopenic purpura (ITP)

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Risk factors

By Mayo Clinic staff

ITP is a fairly common blood disorder and can strike anyone at almost any age, but these factors increase your risk:

  • Your sex. Girls and younger women are about twice as likely to develop ITP as men are, but the gap narrows as people age.
  • Age. Once considered a young person's disease, ITP is actually far more common in people older than 60 than it is in younger adults.
  • Recent viral infection. Many children with ITP develop the disorder after a viral illness, such as mumps, measles or a respiratory infection. In most children, ITP clears on its own within two to eight weeks.
References
  1. ITP: Idiopathic thrombocytopenic purpura. American Academy of Family Physicians. http://familydoctor.org/online/famdocen/home/common/blood/113.html. Accessed July 31, 2008.
  2. What is idiopathic thrombocytopenic purpura? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/Itp/ITP_WhatIs.html. Accessed July 31, 2008.
  3. George JN. Treatment and prognosis of idiopathic thrombocytopenic purpura in adults. http://www.uptodate.com/home/index.html. Accessed July 31, 2008.
  4. Rodeghiero F. Idiopathic thrombocytopenic purpura: An old disease revisited in the era of evidence-based medicine. Haematologica. 2003; 88(10):1081-1087.
  5. Stasi R, et al. Management of immune thrombocytopenic purpura in adults. Mayo Clinic Proceedings. 2004;79(4):504-522. http://www.mayoclinicproceedings.com/pdf%2F7904%2F7904r.pdf.
  6. Bussel JB, et al. Eltrombopag for the treatment of chronic idiopathic thrombocytopenic purpura. New England Journal of Medicine. 2007;357(22):2237-2247. http://content.nejm.org/cgi/content/abstract/357/22/2237. Accessed July 31, 2008.
  7. Rodeghiero F. First-line therapies for immune thrombocytopenic purpura: Re-evaluating the need to treat. European Journal of Haematology. 2008; 80(69)(suppl):19-26.
  8. Newland A. Emerging strategies to treat chronic immune thrombocytopenic purpura. European Journal of Haematology. 2008;80(69)(suppl):27-33.

DS00844

Oct. 30, 2008

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