Title Sergamumas skydliaukės vėžiu, mirtingumas nuo jo ir reliatyvus išgyvenamumas Lietuvoje 2009-2019 metais /
Translation of Title Trends in thyroid cancer incidence and mortality, relative survival in lithuania in 2009-2019.
Authors Vitkauskaitė, Miglė
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Pages 63
Abstract [eng] Basis in short. Thyroid cancer is the most common endocrine tumor, and there has been a consistent increase in thyroid cancer cases worldwide over the last three decades. Therefore, it is important to review the epidemiological situation of thyroid cancer in Lithuania between 2009 and 2019. This review aims to ensure effective cancer control, improve public health. Research Objective: To determine the trends in thyroid cancer incidence, mortality and survival rates in Lithuania from 2009 to 2019. Research Tasks: 1. To evaluate changes in thyroid cancer incidence by disease stage and overall mortality rates in Lithuania from 2009 to 2019. 2. To assess mortality rates due to thyroid cancer in Lithuania from 2009 to 2019. 3. To identify overall trends in thyroid cancer incidence and mortality in Lithuania from 2009 to 2019. 4. To determine the general relative survival rates for thyroid cancer in Lithuania from 2009 to 2019. Research Methods: The study was conducted using all thyroid cancer cases recorded in the Lithuanian Cancer Registry. The calculated incidence and mortality rates were standardized using direct standardization with the 2013 European Standard Population. Data processing was carried out using Microsoft Excel. To calculate the incidence and mortality trends, the Joinpoint regression method was employed. Relative survival was calculated using the Ederer II method. Research Results: In 2009–2019, fluctuations in thyroid cancer incidence and mortality rates were observed. A significant decrease in incidence (11.49 perc.) was seen from 2016 to 2019. The overall standardized mortality rate showed a statistically insignificant increase of 1.21 perc. Women have higher thyroid cancer incidence and mortality rates compared to men. The highest incidence is observed in the 65-69 age group, while the highest mortality is seen in patients aged 85 and older. The most common incidence is for stage 1 thyroid cancer, accounting for 59 perc. of all cases, while the highest mortality is found in stage 4 thyroid cancer. The relative survival rate for patients with thyroid cancer at 1 year is 93 perc., while the 5-year relative survival rate decreases slightly to 90 perc. Research Conclusion: The incidence rate increased from 2009 to 2016, reaching a peak in 2016. Afterward, the rate decreased, reaching its lowest point in 2019. The mortality rate remained relatively stable. The results revealed high 1-year and 5-year relative survival rates, respectively – 93 perc. and 95 perc. Keywords: Thyroid cancer, incidence, mortality, relative survival, trends.
Dissertation Institution Vilniaus universitetas.
Type Master thesis
Language Lithuanian
Publication date 2024