N Slijepcevic1, V Zivaljevic2, I Paunovic2, A Diklic2, Perisic Zivkovic3, D Miljus3, A Grgurevic4, S Sipetic4. 1. Centre for Endocrine surgery, Clinical Centre of Serbia, Belgrade, Serbia. 2. Centre for Endocrine surgery, Clinical Centre of Serbia, Belgrade, Serbia; School of Medicine, University of Belgrade, Belgrade, Serbia. 3. Institute of Public Health of Serbia, Belgrade, Serbia. 4. Institute of Epidemiology, School of Medicine, University of Belgrade, Belgrade, Serbia; School of Medicine, University of Belgrade, Belgrade, Serbia.
Abstract
BACKGROUND: In the past decade, the incidence of thyroid cancer (TC) has shown a stable increase, for both sexes, in many parts of the world at a rate faster than for any other type of malignancy. The aim of our study was to analyze and report changes in TC incidence in Serbia, as well as to evaluate potential reasons for these changes. So far, the incidence of TC in Serbia has not been reported. MATERIAL AND METHODS: This is a retrospective descriptive epidemiological study of TC data from the Cancer Register for Serbia for a ten year period, from 1999 to 2008. Crude rates (CR), age-specific rates (ASR), age-adjusted rates (AAR), linear trends and average annual percentage changes (AAPC) were calculated and analyzed. RESULTS: TC incidence increased substantially for both genders with the highest increase in 2007 for the age group 50-59 (females 14.2, males 10.3). TC was three times more common in females (CR 4.7:1.5). The AAR for females ranged 1.9-4.8 (3.3, 95% CI 2.6-4.0), for males 1.0-2.6 (1.0, 95% CI 0.8-1.2) and for both sexes combined 1.4-3.2 (2.2, 95% CI 1.7-2.6). The incidence trend for males showed an increase (y =0.05x + 0.70, p =0.058). It was highly statistically significant for females (y =0.31x + 1.61, p <0.001) and both genders combined (y =0.18x + 1.18, p <0.001). AAPC was highest for ages 20-29 and 30-39, for females (+25.2%) and males (+17.3%), respectively. CONCLUSIONS: We found a substantial increase in TC incidence in Serbia for both genders. The highest increase in TC incidence was found in females aged 20 to 29 years while the highest incidence was found in the age group 50 to 59.
BACKGROUND: In the past decade, the incidence of thyroid cancer (TC) has shown a stable increase, for both sexes, in many parts of the world at a rate faster than for any other type of malignancy. The aim of our study was to analyze and report changes in TC incidence in Serbia, as well as to evaluate potential reasons for these changes. So far, the incidence of TC in Serbia has not been reported. MATERIAL AND METHODS: This is a retrospective descriptive epidemiological study of TC data from the Cancer Register for Serbia for a ten year period, from 1999 to 2008. Crude rates (CR), age-specific rates (ASR), age-adjusted rates (AAR), linear trends and average annual percentage changes (AAPC) were calculated and analyzed. RESULTS: TC incidence increased substantially for both genders with the highest increase in 2007 for the age group 50-59 (females 14.2, males 10.3). TC was three times more common in females (CR 4.7:1.5). The AAR for females ranged 1.9-4.8 (3.3, 95% CI 2.6-4.0), for males 1.0-2.6 (1.0, 95% CI 0.8-1.2) and for both sexes combined 1.4-3.2 (2.2, 95% CI 1.7-2.6). The incidence trend for males showed an increase (y =0.05x + 0.70, p =0.058). It was highly statistically significant for females (y =0.31x + 1.61, p <0.001) and both genders combined (y =0.18x + 1.18, p <0.001). AAPC was highest for ages 20-29 and 30-39, for females (+25.2%) and males (+17.3%), respectively. CONCLUSIONS: We found a substantial increase in TC incidence in Serbia for both genders. The highest increase in TC incidence was found in females aged 20 to 29 years while the highest incidence was found in the age group 50 to 59.
Authors: J Jonklaas; G Nogueras-Gonzalez; M Munsell; D Litofsky; K B Ain; S T Bigos; J D Brierley; D S Cooper; B R Haugen; P W Ladenson; J Magner; J Robbins; D S Ross; M C Skarulis; D L Steward; H R Maxon; S I Sherman Journal: J Clin Endocrinol Metab Date: 2012-04-10 Impact factor: 5.958
Authors: Gábor L Kovács; Gábor Gonda; Gizella Vadász; Eva Ludmány; Katalin Uhrin; Zoltán Görömbey; László Kovács; Erika Hubina; Miklós Bodó; Miklós I Góth; István Szabolcs Journal: Thyroid Date: 2005-02 Impact factor: 6.568
Authors: Simon Grodski; Tani Brown; Stan Sidhu; Anthony Gill; Bruce Robinson; Diana Learoyd; Mark Sywak; Tom Reeve; Leigh Delbridge Journal: Surgery Date: 2008-12 Impact factor: 3.982