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Hoonsung Choi 1 Article
Thyroid
Thyroid Cancer Screening
Survival Comparison of Incidentally Found versus Clinically Detected Thyroid Cancers: An Analysis of a Nationwide Cohort Study
Shinje Moon, Eun Kyung Lee, Hoonsung Choi, Sue K. Park, Young Joo Park
Endocrinol Metab. 2023;38(1):81-92.   Published online February 27, 2023
DOI: https://doi.org/10.3803/EnM.2023.1668
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  • 5 Web of Science
  • 5 Crossref
AbstractAbstract PDFPubReader   ePub   
Background
The true benefit of thyroid cancer screening is incompletely understood. This study investigated the impact of ultrasound screening on thyroid cancer outcomes through a comparison with symptomatic thyroid cancer using data from a nationwide cohort study in Korea.
Methods
Cox regression analysis was performed to assess the hazard ratios (HRs) for all-cause and thyroid cancer-specific mortality. Considering the possible bias arising from age, sex, year of thyroid cancer registration, and confounding factors for mortality (including smoking/drinking status, diabetes, and hypertension), all analyses were conducted with stabilized inverse probability of treatment weighting (IPTW) according to the route of detection.
Results
Of 5,796 patients with thyroid cancer, 4,145 were included and 1,651 were excluded due to insufficient data. In comparison with the screening group, the clinical suspicion group was associated with large tumors (17.2±14.6 mm vs. 10.4±7.9 mm), advanced T stage (3–4) (odds ratio [OR], 1.24; 95% confidence interval [CI], 1.09 to 1.41), extrathyroidal extension (OR, 1.16; 95% CI, 1.02 to 1.32), and advanced stage (III–IV) (OR, 1.16; 95% CI, 1.00 to 1.35). In IPTW-adjusted Cox regression analysis, the clinical suspicion group had significantly higher risks of all-cause mortality (HR, 1.43; 95% CI, 1.14 to 1.80) and thyroid cancer-specific mortality (HR, 3.07; 95% CI, 1.77 to 5.29). Mediation analysis showed that the presence of thyroid-specific symptoms was directly associated with a higher risk of cancer-specific mortality. Thyroid-specific symptoms also indirectly affected thyroid cancer-specific mortality, mediated by tumor size and advanced clinicopathologic status.
Conclusion
Our findings provide important evidence for the survival benefit of early detection of thyroid cancer compared to symptomatic thyroid cancer.

Citations

Citations to this article as recorded by  
  • Clinical Characteristics, Diagnostic Approach and Outcome of Thyroid Incidental Findings vs. Clinically Overt Thyroid Nodules: An Observational Single-Centre Study
    Tom Jansen, Nike Stikkelbroeck, Annenienke van de Ven, Ilse van Engen-van Grunsven, Marcel Janssen, Han Bonenkamp, Martin Gotthardt, Romana T. Netea-Maier
    Cancers.2023; 15(8): 2350.     CrossRef
  • Lower Thyroid Cancer Mortality in Patients Detected by Screening: A Meta-Analysis
    Shinje Moon, Young Shin Song, Kyong Yeun Jung, Eun Kyung Lee, Young Joo Park
    Endocrinology and Metabolism.2023; 38(1): 93.     CrossRef
  • To Screen or Not to Screen?
    Do Joon Park
    Endocrinology and Metabolism.2023; 38(1): 69.     CrossRef
  • The 2017 United States Preventive Services Task Force Recommendation for Thyroid Cancer Screening Is No Longer the Gold Standard
    Ka Hee Yi
    Endocrinology and Metabolism.2023; 38(1): 72.     CrossRef
  • Thyroid Cancer Screening: How to Maximize Its Benefits and Minimize Its Harms
    Jung Hwan Baek
    Endocrinology and Metabolism.2023; 38(1): 75.     CrossRef
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