What is the prevalence of hypothyroidism in the US?

Updated: Mar 03, 2021
  • Author: Philip R Orlander, MD, FACP; Chief Editor: George T Griffing, MD  more...
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Answer

The National Health and Nutrition Examination Survey (NHANES 1999-2002) of 4392 individuals reflecting the US population reported hypothyroidism (defined as TSH levels exceeding 4.5 mIU/L) in 3.7% of the population. [29] Hypothyroidism is more common in women with small body size at birth and low body mass index during childhood. [30]


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