• Arch Iran Med · Jan 2021

    Temporal and Geographical Trends of Incidence of Thyroid Cancer in Golestan, Iran, 2004-2013.

    • Fatemeh Salamat, Ali Aryannia, Siamak Rajaei, Mohammad Naeimi-Tabiei, Reza Afghani, Seyyed Mehdi Sedaghat, Esmaeil Naeimi-Tabiei, Faezeh Salamat, Reza Hosseinpour, Abdolreza Fazel, Marzieh Araghi, and Gholamreza Roshandel.
    • Cancer Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
    • Arch Iran Med. 2021 Jan 1; 24 (1): 161-6.

    BackgroundThyroid cancer is the most common type of endocrine cancer. We aimed to determine the incidence rates of thyroid cancer across a 10-year period (2004-2013) in Golestan, Iran.MethodsWe obtained the thyroid cancer data from Golestan Population-Based Cancer Registry (GPCR). Age-standardized incidence rates (ASR) were calculated and reported per 100000 person-years. The Joinpoint software was used to assess time trends, and average annual percent changes (AAPCs) and their corresponding 95% confidence intervals (CIs) were reported.ResultsOf 326 registered patients, 83 (25.5%) were men and 243 (74.5%) were women. The mean age was 51.3 and 42.6 years for males and females, respectively. Overall, the ASR of thyroid cancer was 2.2 per 100000 person-year (AAPC = 2.76; 95% CI: -3.68 to 9.64). The test of co-incidence showed a statistically significant difference in the incidence of thyroid cancer between men (1.3) and women (3.2) (P < 0.001). According to our results, the ASR of thyroid cancer in western parts of Golestan is higher, including Gorgan and Aliabad cities.ConclusionIncreasing trends in incidence rates of thyroid cancer were found in the Golestan province during the study period, especially in women. We found significantly higher rates of thyroid cancer in women. Geographical diversities were seen in incidence rates of thyroid cancer in the Golestan province. Our results may be helpful for designing further researches to investigate the epidemiological aspects of thyroid cancer in the Golestan province.© 2021 The Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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