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Changes in thyroid cancer incidence, post‐2009 A merican Thyroid A ssociation guidelines
Author(s) -
Shi Lucy L.,
DeSantis Carol,
Jemal Ahmedin,
Chen Amy Y.
Publication year - 2017
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.26473
Subject(s) - thyroid cancer , medicine , incidence (geometry) , thyroid , cancer , guideline , epidemiology , demography , oncology , pathology , physics , optics , sociology
Background The thyroid cancer incidence rate has tripled in the United States since the 1980s, especially among women and small‐sized tumors. This trend has been attributed to increased detection due to the availability of ultrasound and fine‐needle aspiration technology. In 2009, the American Thyroid Association (ATA) released revisions to their guidelines for well‐differentiated thyroid cancers. Objective To examine trends in thyroid cancer incidence rates by tumor size and gender following the 2009 ATA guideline revisions. Methods Cases of differentiated thyroid cancer diagnosed from 2000 to 2012 were analyzed from the National Cancer Institute Surveillance Epidemiology and End Results program, 18 registries. Trends in incidence rates based on gender (males, females) and tumor size (< 1.0 cm, 1.0–2.9 cm, 3.0–3.9 cm, ≥ 4.0 cm) were analyzed using Joinpoint Regression and reported as the annual percentage change (APC). Results From 2000 to 2009, overall thyroid cancer incidence rates increased rapidly by about 8% per year in both sexes. Incidence rates increased across all tumor sizes, but especially in tumors 1.0 to 2.9 cm (men, APC = 7.7; women, APC = 7.8) and < 1.0 cm (men, APC = 7.8; women = 10.9) for both genders. Since 2009, the trend slowed in men (APC = 3.0) and women (APC = 2.8). The deceleration among females was confined to tumors less than 2.9 cm. Trends for all size groups in males remained constant from 2000 to 2012. Conclusion The rapid increase in thyroid cancer incidence rates over the past three decades has recently slowed, especially among small‐sized cancers and women, which coincides with the 2009 ATA guideline revisions. Level of Evidence 2c. Laryngoscope , 127:2437–2441, 2017