Postpartum thyroiditis epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Epidemiology and Demographics

Incidence

• In 2012, the incidence of PPT was estimated to be 1600 to 18200 cases per 100,000 women.
• Incidence of PPT increase with patients having type 1 DM up to 25000 per 100,000 women.
• Incidence of PPT increase with subsequent pregnancies.
• Incidence of PPT increase with postive TPO antibodies and subsequent pregnancies to approximatrly 70000 cases per 100,000 women.
• In 2000, the incidence of PPT was established to be approximately 7800 cases per 100,000 Mediterranean population.

Prevalence

• In 2012,The prevalence of PPT was estimated to be from 1000 to 20000, with a mean prevalence of 5000 cases per 100,000 women.

Case-fatality rate

• No data available

Age

• PPT occurs in women in child bearing age.

Race

• PPT usually affects individuals of the Mediterranean and Caucasians population race. Mongolian race is usually less effected.

Region

• The majority of PPT cases are reported Europe and Japan.

Developed Countries

USA 9000 cases per 100,000 women.

Britain 16700 cases per 100,000 women.

Italy 8700 cases per 100,000 women.

Developing Countries

India 7000 cases per 100,000 women.

Japan 5300 to 21000 cases per 100,000 women.

Thailand 1100 cases per 100,000 women.

References

Template:WH Template:WS DIANA L. LEAROYD, HEDY Y. M. FUNG, and ALAN M. McGREGOR. Thyroid. March 2009, 2(1): 73-80.

Anna Lucas, Eduarda Pizarro, Maria Luisa Granada, Isabel Salinas, Mario Foz, and Anna Sanmarti. Thyroid. January 2009, 10(1): 71-77. https://doi.org/10.1089/thy.2000.10.71

https://www.thyroid.org/wp-content/uploads/patients/brochures/Postpartum_Thyroiditis_brochure.pdf

J Clin Endocrinol Metab. 2012 Feb; 97(2):334-42.

Amino N, Tada H & Hidaka Y. Postpartum autoimmune thyroid syndrome: a model of aggravation of autoimmune disease. Thyroid 1999 9 705–713.