Int J Thyroidol.  2017 Nov;10(2):82-88. 10.11106/ijt.2017.10.2.82.

Secular Trends for Diagnostic Motives and Environmental Risk Factors in Thyroid Cancer Using Questionnaire Survey

• Kim H
• Hwangbo Y
• Kong SH
• Song YS
• Kim MJ
• Cho SW
• Lee YJ
• Yi KH
• Park DJ
• Lee EK
• Park YJ

• KMID: 2396811
• DOI: http://doi.org/10.11106/ijt.2017.10.2.82

Abstract

BACKGROUND AND OBJECTIVES
We analyzed the clinicopathologic differences of thyroid cancer by diagnosis periods, diagnostic motives, residence history and clinical risk factors in thyroid cancer patients.
MATERIALS AND METHODS
Total 1599 thyroid cancer patients who answered the questionnaires about family history of thyroid cancer, residence history including duration of residence and location were enrolled from two hospitals, Seoul National University Hospital and National Cancer Center in Korea. Demographics and environmental information were collected via questionnaires and clinical data were reviewed via electronic medical records.
RESULTS
More thyroid cancer has been diagnosed in 2011 to 2013 by screening test without specific symptom than before 1990. The size of cancer at diagnosis was significantly smaller and multifocal tumor was more frequently found in 2011 to 2013 than before 1990 as well. The tumors of obese or overweight patients tended to harbor extrathyroidal extension and lymph node metastasis than normal weight subjects with statistical significance. However, there were no differences in clinicopathologic characteristics according to residence and smoking history.
CONCLUSION
In this study, there were some different clinicopathologic characteristics according to the diagnosis era, diagnostic motives, family history of thyroid cancer and body mass index.

Keyword

Thyroid cancer; Thyroid cancer screening; Environmental factor; Questionnaire

MeSH Terms

Body Mass Index
Demography
Diagnosis
Electronic Health Records
Humans
Korea
Lymph Nodes
Mass Screening
Neoplasm Metastasis
Overweight
Risk Factors*
Seoul
Smoke
Smoking
Thyroid Gland*
Thyroid Neoplasms*
Smoke

Figure

• 

  Fig. 1 Difference in diagnosis motivation according to periods.

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