How does the prevalence of papillary thyroid carcinoma (PTC) vary by sex?

Updated: Jun 18, 2020
  • Author: Ponnandai S Somasundar, MD, MPH, FACS; Chief Editor: Neetu Radhakrishnan, MD  more...
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Answer

Thyroid cancer is approximately three times more common in females than males. The female-to-male ratio varies by patient age, as follows:

  • In patients younger than 19 years, the female-to-male ratio is 3.2:1
  • In patients aged 20-45 years, the female-to-male ratio is 3.6:1
  • In patients older than 45 years, the female-to-male ratio is 2.8:1

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