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Thyroid fine-needle aspiration biopsy positively correlates with increased diagnosis of thyroid cancer in South Korean patients

Authors
 Yoon Jae Cho  ;  Do Young Kim  ;  Eun-Cheol Park  ;  Kyu-Tae Han 
Citation
 BMC CANCER, Vol.17(1) : 114, 2017 
Journal Title
 BMC CANCER 
Issue Date
2017
MeSH
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Biopsy, Fine-Needle* ; Disease Management* ; Female ; Humans ; Male ; Middle Aged ; Republic of Korea/epidemiology ; Thyroid Neoplasms/diagnosis* ; Thyroid Neoplasms/epidemiology ; Thyroid Neoplasms/pathology ; Young Adult
Keywords
Biopsy ; Fine-needle ; Health Services Accessibility ; Overdiagnosis ; Thyroid cancer
Abstract
BACKGROUND: The incidence of thyroid cancer among South Koreans is more than 10-fold greater than its incidence in other countries, although its associated mortality rate is similar. Amidst concerns regarding the over-diagnosis of thyroid cancer related to gradually expanded medical testing in South Korea, we hypothesized that the number of thyroid fine-needle aspiration biopsies has led to increased diagnosis of thyroid cancer. METHODS: We used data from the National Health Insurance Service National Sample Cohort 2003-2013, which included all medical claims filed for the 1,122,456 people in a nationally representative sample. We performed a Poisson regression analysis using generalized estimating equation to investigate the relationship between the number of thyroid fine-needle aspiration biopsies and the newly diagnosed cases of thyroid cancer. RESULTS: The study included 60 annual patients per 100,000 individuals out of 11,024,548 person-years. The number of biopsies per 100,000 patients positively correlated with increased incidence of thyroid cancer diagnosis (per 100 biopsy cases: RR = 1.108; 95% CI: 1.090-1.126; P < 0.0001). Such relationships were greater in males, patients with a higher socioeconomic status, and patients from regions with relatively less accessibility to biopsies. CONCLUSION: Our findings suggest that a higher number of thyroid fine-needle aspiration biopsies per 100,000 individuals in a specific Si-Gun-Gu is positively associated with excessively increased diagnosis of thyroid cancer. Regarding the continually increasing thyroid cancer incidence in South Korea, healthcare professionals and policy makers should consider proper guidelines for recognizing the role of thyroid fine-needle aspiration biopsies in the potential over-diagnosis of thyroid cancer.
Files in This Item:
T201700323.pdf Download
DOI
10.1186/s12885-017-3104-0
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Park, Eun-Cheol(박은철) ORCID logo https://orcid.org/0000-0002-2306-5398
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/154344
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