Incidence of Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome

D. P. Miller, J. A. Kaye, K. Shea, N. Ziyadeh, C. Cali, Corrinda Black, A. M. Walker

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Background: Thrombotic thrombocytopenic purpura and hemolytic uremic syndrome are rare disorders characterized by platelet aggregation, microthrombi, and resulting tissue damage. We studied the incidence and possible risk factors for these diseases in 3 large populations in the United States, United Kingdom, and Canada.

Methods: Data were derived from a large health insurer in the United States, general practices in the United Kingdom, and the Province of Saskatchewan. We identified potential cases of thrombotic thrombocytopenia purpura and hemolytic uremic syndrome in computerized data and verified them by medical record review. We estimated incidence rates for thrombotic thrombocytopenia purpura and hemolytic uremic syndrome together and separately, and we conducted a case-control study to evaluate potential risk factors.

Results: The age-sex standardized incidence of thrombotic thrombocytopenia purpura and hemolytic uremic syndrome was higher than previously reported (6.5, 2.2, and 3.2 per million per year in the United States, United Kingdom, and Saskatchewan, respectively), but there was no secular trend. The incidence of thrombotic thrombocytopenia purpura and hemolytic uremic syndrome was higher in women than men. Most cases of hemolytic uremic syndrome occurred before 20 years of age. We confirmed several known risk factors for thrombotic thrombocytopenia purpura and hemolytic uremic syndrome (cancer, bone marrow transplantation, pregnancy).

Conclusion: The incidence of thrombotic thrombocytopenia purpura and hemolytic uremic syndrome is higher than previously reported but does not appear to be rising. Apparent international differences in incidence could be the result of imprecision in identifying thrombotic thrombocytopenia purpura and hemolytic uremic syndrome in large research databases.

Original languageEnglish
Pages (from-to)208-215
Number of pages7
JournalEpidemiology
Volume15
Issue number2
DOIs
Publication statusPublished - Mar 2004

Keywords

  • VON-WILLEBRAND-FACTOR
  • FACTOR-CLEAVING PROTEASE
  • PURPURA

Cite this

Miller, D. P., Kaye, J. A., Shea, K., Ziyadeh, N., Cali, C., Black, C., & Walker, A. M. (2004). Incidence of Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome. Epidemiology, 15(2), 208-215. https://doi.org/10.1097/01.ede.0000113273.14807.53

Incidence of Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome. / Miller, D. P.; Kaye, J. A.; Shea, K.; Ziyadeh, N.; Cali, C.; Black, Corrinda; Walker, A. M.

In: Epidemiology, Vol. 15, No. 2, 03.2004, p. 208-215.

Research output: Contribution to journalArticle

Miller, DP, Kaye, JA, Shea, K, Ziyadeh, N, Cali, C, Black, C & Walker, AM 2004, 'Incidence of Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome', Epidemiology, vol. 15, no. 2, pp. 208-215. https://doi.org/10.1097/01.ede.0000113273.14807.53
Miller, D. P. ; Kaye, J. A. ; Shea, K. ; Ziyadeh, N. ; Cali, C. ; Black, Corrinda ; Walker, A. M. / Incidence of Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome. In: Epidemiology. 2004 ; Vol. 15, No. 2. pp. 208-215.
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AU - Cali, C.

AU - Black, Corrinda

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