Riedel's thyroiditis epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Furqan M M. M.B.B.S[2]

Overview

Riedel's thyroiditis is classified as rare. Most patients remain euthyroid, but approximately 30% of patients become hypothyroid and very few patients are hyperthyroid. It is mostly seen in women.

Epidemiology and Demographics

Incidence

• The incidence of Riedel's thyroiditis is estimated to be approximately 1.06 cases per 100,000 individuals worldwide.

Prevalence

• Riedel's thyroiditis is rare. In 1985, 37 patients reported were identified with Riedel's thyroiditis over a 64-yr period during which over 56,000 thyroidectomies were performed in a study.

Case-fatality rate

• There are no reports of reduced life expectancy in subjects with Riedel's thyroiditis. One lethal case of RT has been described up until now.

Age

• Riedel's thyroiditis commonly affects individuals between 30-50 years of age.

Race

• There is no racial predilection to Riedel's thyroiditis.

Gender

• Females are more commonly affected by Riedel's thyroiditis than men. Women have been noted to be affected 3-fold more frequently than men.

Region

• The majority of [disease name] cases are reported in [geographical region].

• [Disease name] is a common/rare disease that tends to affect [patient population 1] and [patient population 2].