Hashimoto's thyroiditis epidemiology and demographics

Hashimoto’s thyroiditis is particularly common in middle aged women, Asians, and Whites. Annually, there are around 22 cases per 100,000 individuals worldwide.

Hashimoto’s thyroiditis is more common in middle aged women, Asians, and Whites.^[1]

The prevalence of Hashimoto’s thyroiditis is 800 cases per 100,000 when estimated from a review of published articles and 4600 cases per 100,000 when estimated from the biochemical evidence of hypothyroidism and thyroid autoantibodies.^[1][2]

The overall incidence of endogenous Hashimoto’s thyroiditis is approximately 22 per 100,000 individuals per year. The incidence varies according to the disease definition and case detection methods. ^[1][2]

Hashimoto’s thyroiditis is most prevalent between 45 and 65 years of age.^[1]

Hashimoto’s thyroiditis is more common in females.^[1]

Hashimoto’s thyroiditis is more common in Whites and Asians than in African-Americans.^[1]

Hashimoto’s thyroiditis is believed to be the most common cause of primary hypothyroidism in North America. In European countries, an atrophic form of autoimmune thyroiditis (Ord’s thyroiditis) is more common than Hashimoto’s thyroiditis. It affects between 0.1% and 5% of all adults in Western countries.^[1]

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