Increasing Thyroid Cancer Rate and the Extent of Thyroid Surgery in Korea

Myung-Whun Sung, Bumjung Park, Soo-Youn An, J Hun Hah, Young Ho Jung and Hyo Geun Choi

PLOS ONE, 2014, vol. 9, issue 12, 1-10

Abstract: Background: It is evident that the rate of thyroid cancer is increasing throughout the world. One reason is increased detection of preclinical small cancers. However, it is not clear whether the increase in thyroid cancer rate is reducing the extent of thyroid surgeries. The purpose of this study was to evaluate the thyroid cancer rate and analyze recent changes in the extent of thyroid cancer surgeries in Korea. Methods: An observational study was conducted using data from Korea’s Health Insurance Review and Assessment Service (HIRAS) for thyroidectomy with/without neck dissection, with 228,051 registered patients between 2007 and 2011. Data were categorized by the extent of surgery: unilateral thyroidectomy without neck dissection (UT), bilateral thyroidectomy or radical thyroidectomy without neck dissection (TT), any thyroidectomy with unilateral selective neck dissection (SND), any thyroidectomy with unilateral modified radical neck dissection (MRND), any thyroidectomy with unilateral radical neck dissection (RND), and any thyroidectomy with bilateral neck dissection (BND). Annual rate difference for each surgery was analyzed with a linear by linear association. Results: The absolute numbers of total thyroid surgeries (UT+TT+SND+MRND+RND+BND) were increased from 28539 to 61481. The proportion of patients who underwent only thyroidectomy without neck dissection (UT+TT) decreased from 67.30% to 60.50%, whereas the proportion of patients who underwent neck dissection (SND+MRND+RND+BND) increased from 32.70% to 39.50% during the 5-year study period. Conclusion: Despite the increase in rate of thyroid cancer due to earlier detection, increased rate of neck dissection was noted.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0113464

DOI: 10.1371/journal.pone.0113464

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