Short summary

Based on the study, an increasing incidence and prevalence of thyroid cancer in Denmark can be concluded in the years 2000-2015.The incidence of thyroid cancer is higher for women than for men.

With regard to age, the incidence increased with age, and that the age group 45-69 years accounted for the largest part by approximately 50% of all cases of thyroid cancer.

Hazard ratio results show that mortality is less in women who have thyroid cancer compared to men. In the age groups, the hazard ratio showed that people over 70 years had the highest mortality rate, and the 45-69 year-olds had the lowest, whereas people under 45 years had higher mortality than the age group 45-69 years.

With regard to M status, people with Matastase had higher mortality than those who did not have and those where Matestase was not assessed.

There was no clear difference among the regions, Midtjylland had the least mortal and Nordjylland the highest.

Rationale

The introduction 

In Denmark, diagnosed. 300 cases of thyroid cancer yearly, a relatively rare disease, but an increasing incidence. People living with the diagnosis of thyroid cancer are approx. 3000th. The disease affects all age groups, but is more frequent in women than in men and with a high survival rate. The same pattern for thyroid cancer is also valid for the overall world's image.

In view of the increasing incidence of thyroid cancer, both in Denmark and on the global level, it has been interesting to do this survey. The processing has shown that no epidemiological studies of thyroid cancer have been performed since 2012 in Denmark, where the period of data used extended to the years 2008. It was therefore an opportunity to process new results of thyroid cancer status in Denmark.

Background

Thyreoideacancer is a relatively rare type of cancer, which has an increasing incidence rate on a global scale. The cause of thyreoideacancer is still unknown. However, certain risk factors have been argued to increase the probability of developing specific types of cancer, including thyreoideacancer.

Purpose

The purpose of this study is to examine the incidence rate and prevalence ratio in the Danish population during the period 2000-2015 in relation to gender and age, as well as the mortality rate in thyroid cancer patients. Furthermore, a qualitative literature review of possible risk factors for thyreoideacancer will be presented.

Description of the cohort

The cohort set includes all diagnosed incidents of thyreoid cancer in Denmark during the period 2000-2015 (N=3,486).

Data and biological material

Register data.