scholarly journals Trends in Childhood Thyroid Cancer incidence in Korea and Its Potential Risk Factors

2021 ◽  
Vol 12 ◽  
Author(s):  
Jun Park ◽  
Hyunju Park ◽  
Tae Hyuk Kim ◽  
Sun Wook Kim ◽  
Hye Won Jang ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Alcohol Consumption ◽  
Iodine Intake ◽  
Screening Tests ◽  
Obesity Prevalence ◽  
Related Factors ◽  
Korean Children ◽  
Consumption Rates ◽  
Potential Risk Factors ◽  
Childhood Thyroid Cancer

BackgroundAlthough the incidence of thyroid cancer had been increasing until a few years ago, a decrease has been observed in the last years, probably due to the reduction of the screening tests in Korea. Childhood thyroid cancer has been increasing in the past with the same trend as in adults, but there have been few reports on recent trends. We analyzed the trends of thyroid cancer in Korean children and related factors.MethodsFrom national statistics and cancer register database, the data of age-specific incidence rate in Korean childhood thyroid cancer from 1999 to 2017 was obtained, and levels of seaweed intake, the number of computed tomography (CT) and neck ultrasonography (US), obesity prevalence rate, and smoking and alcohol consumption rates in children were analyzed.ResultsThe age-specific incidence of thyroid cancer in Korean children has increased in both genders between 1999 and 2017 (2.0 in 1999 vs. 7.2 in 2017, per population of 100,000), especially in the age group of 14-18 years (1.5 in 1999 vs. 5.5 in 2017, per population of 100,000). During the same period, levels of seaweed intake, number of CT scans and neck US, and prevalence of obesity in children increased significantly, while childhood smoking and alcohol consumption rates decreased.ConclusionUnlike the adult thyroid cancer in Korea, childhood thyroid cancer continues to increase, and the cause might be accompanied by actual increases due to the environmental factors such as excessive iodine intake, exposure to medical radiation, and increased obesity prevalence as well as the screening effect.

scholarly journals Stable Iodine Distribution Among Children After the 2011 Fukushima Nuclear Disaster in Japan: An Observational Study

2018 ◽  
Vol 104 (5) ◽  
pp. 1658-1666 ◽  
Author(s):  
Yoshitaka Nishikawa ◽  
Ayako Kohno ◽  
Yoshimitsu Takahashi ◽  
Chiaki Suzuki ◽  
Hirokatsu Kinoshita ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Adverse Effects ◽  
Observational Study ◽  
Iodine Intake ◽  
Intake Rate ◽  
Distribution Method ◽  
Fukushima Nuclear Disaster ◽  
Childhood Thyroid Cancer ◽  
Fukushima Disaster ◽  
Stable Iodine

Abstract Context Intake of stable iodine helps prevent childhood thyroid cancer in nuclear emergencies, but there is limited case information. Objective We identified the intake rate and the factors associated with no intake among children who did not take stable iodine after the Fukushima disaster. Design Retrospective observational study. Setting Data were obtained from thyroid cancer screenings performed from August through November 2017. Participants Children in Miharu Town, Fukushima, Japan. Intervention No intervention. Main Outcome Measures We performed multilevel logistic regression analysis at the regional and individual levels. We qualitatively examined the reasons for no intake of stable iodine based on closed- and open-ended questions. Results The rate of distribution was 94.9%, but the intake rate was only 63.5%. Intake was lower in those aged 0 to 2 years compared with those aged ≥3 years (OR, 0.21; 95% CI, 0.11 to 0.36). Parents’ intake was positively associated with their children’s intake (OR, 61.0; 95% CI, 37.9 to 102.9). The variance partition coefficient for regions was 0.021, suggesting that the intake of stable iodine was more likely affected by individual than by regional factors. Closed-ended questions showed that the main reason for avoiding intake was concern about safety. Open-ended questions for other reasons revealed issues related to the distribution method, information about the effects and adverse effects of iodine, and instructions for iodine intake. There were no symptomatic adverse effects claimed to the town. Conclusions The distribution and consumption of stable iodine occurred in Miharu Town after the Fukushima disaster. To prepare for future nuclear emergencies, it is important to explain to both children and parents the need for intake of stable iodine, particularly among young children.

scholarly journals A Search for Causes of Rising Incidence of Differentiated Thyroid Cancer in Children and Adolescents after Chernobyl and Fukushima: Comparison of the Clinical Features and Their Relevance for Treatment and Prognosis

2021 ◽  
Vol 18 (7) ◽  
pp. 3444
Author(s):  
Valentina Drozd ◽  
Vladimir Saenko ◽  
Daniel I. Branovan ◽  
Kate Brown ◽  
Shunichi Yamashita ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Children And Adolescents ◽  
Differentiated Thyroid Cancer ◽  
Age Groups ◽  
Distant Metastases ◽  
Lifestyle Changes ◽  
Radiation Doses ◽  
Related Factors ◽  
Fukushima Accident ◽  
Tumor Stages

The incidence of differentiated thyroid cancer (DTC) is steadily increasing globally. Epidemiologists usually explain this global upsurge as the result of new diagnostic modalities, screening and overdiagnosis as well as results of lifestyle changes including obesity and comorbidity. However, there is evidence that there is a real increase of DTC incidence worldwide in all age groups. Here, we review studies on pediatric DTC after nuclear accidents in Belarus after Chernobyl and Japan after Fukushima as compared to cohorts without radiation exposure of those two countries. According to the Chernobyl data, radiation-induced DTC may be characterized by a lag time of 4–5 years until detection, a higher incidence in boys, in children of youngest age, extrathyroidal extension and distant metastases. Radiation doses to the thyroid were considerably lower by appr. two orders of magnitude in children and adolescents exposed to Fukushima as compared to Chernobyl. In DTC patients detected after Fukushima by population-based screening, most of those characteristics were not reported, which can be taken as proof against the hypothesis, that radiation is the (main) cause of those tumors. However, roughly 80% of the Fukushima cases presented with tumor stages higher than microcarcinomas pT1a and 80% with lymph node metastases pN1. Mortality rates in pediatric DTC patients are generally very low, even at higher tumor stages. However, those cases considered to be clinically relevant should be followed-up carefully after treatment because of the risk of recurrencies which is expected to be not negligible. Considering that thyroid doses from the Fukushima accident were quite small, it makes sense to assess the role of other environmental and lifestyle-related factors in thyroid carcinogenesis. Well-designed studies with assessment of radiation doses from medical procedures and exposure to confounders/modifiers from the environment as e.g., nitrate are required to quantify their combined effect on thyroid cancer risk.

scholarly journals Low urinary iodine is a protective factor of central lymph node metastasis in papillary thyroid cancer: a cross-sectional study

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Ziyang Zeng ◽  
Kang Li ◽  
Xianze Wang ◽  
Siwen Ouyang ◽  
Zimu Zhang ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Papillary Thyroid Cancer ◽  
Protective Factor ◽  
Urinary Iodine ◽  
Iodine Intake ◽  
Clinicopathological Features ◽  
Papillary Thyroid ◽  
Central Lymph Node ◽  
High Iodine ◽  
Central Lymph

Abstract Background An abrupt increase of thyroid cancer has been witnessed paralleling the supplemented iodine intake in formerly iodine-deficient countries. And increased iodine intake has been linked to the rising incidence rate of papillary thyroid cancer (PTC). However, the correlation between iodine and clinicopathological features of PTC has not been well-characterized. This study aimed to investigate the associations between iodine intake and the clinicopathological features of PTC patients. Methods Three hundred and fifty-nine PTC patients who received surgical treatment in Peking Union Medical College Hospital from May 2015 to November 2020 were retrospectively reviewed. The associations between urinary iodine (UI), urinary iodine/creatinine ratio (UI/U-Cr), and the clinicopathological features of PTC were analyzed. Univariate and multivariate analysis were performed to investigate the relationship between UI level and central lymph node metastasis (CLNM). Results There were no significant differences in UI in different groups according to the variables studied, except that patients with CLNM had higher UI level than CLNM(−) patients. No associations were found between UI/U-Cr and clinicopathological features except variant subtypes (classic/follicular). After dividing patients into high-iodine group and low-iodine group, more patients were found to have CLNM in the high-iodine group (p = 0.02). In addition, younger age, larger tumor size, and classic variant were positively correlated with CLNM (p < 0.05). Univariate analysis showed that insufficient iodine intake (≤ 99 μg/L) was associated with decreased CLNM risk in PTC. And after defining insufficient iodine intake as ≤ 109 μg/L and above requirements as ≥ 190 μg/L, multivariate analysis showed that lower iodine was associated with CLNM in total population of PTC (OR 0.53, 95% CI 0.31–0.91) and in PTC < 1 cm (papillary thyroid microcarcinoma, PTMC) (OR 0.43, 95% CI 0.21–0.87). Conclusions Low iodine was a protective factor for CLNM in papillary thyroid cancer, particularly in those < 1 cm. These results indicated that iodine may not only be an initiator of tumorigenesis, but also a promoter of the development of PTC.

scholarly journals Obesity is positively related and tobacco smoking and alcohol consumption are negatively related to an increased risk of thyroid cancer

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Soo-Youn An ◽  
So Young Kim ◽  
Dong Jun Oh ◽  
Chanyang Min ◽  
Songyoung Sim ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Alcohol Consumption ◽  
Smoking Status ◽  
Conditional Logistic Regression ◽  
Overweight And Obesity ◽  
Control Group ◽  
Increased Risk ◽  
Region Of Residence ◽  
Korean National Health Insurance ◽  
Comorbidity Index

Abstract The purpose of this study was to evaluate the relationships of smoking, alcohol consumption, and obesity with thyroid cancer in Korean residents. The Korean National Health Insurance Service-Health Screening Cohort includes individuals ≥ 40 years who were assessed from 2002 to 2013. In total, 4977 thyroid cancer participants were matched with respect to age, sex, income, and region of residence with 19,908 controls at a ratio of 1:4. Crude and adjusted (for the Charlson comorbidity index, smoking status, frequency of alcohol consumption, and obesity) odds ratios (ORs) were analyzed using conditional logistic regression analyses. Additionally, 95% confidence intervals (CIs) were calculated. The adjusted OR of smoking for thyroid cancer was 0.62 (95% CI 0.54–0.72, P < 0.001), and that of alcohol consumption was 0.83 (95% CI 0.75–0.92, P < 0.001). The adjusted ORs of the BMI categories were 1.13 (95% CI 1.05–1.22, P = 0.002) for obese I, and 1.24 (95% CI 1.04–1.47, P = 0.014) for obese II. The ORs of smoking and alcohol consumption were lower, and those of overweight and obesity were higher in thyroid cancer patients than in individuals in the control group.

scholarly journals Cost of diseases related to alcohol consumption in the Brazilian Unified Health System

2016 ◽  
Vol 50 (0) ◽  
Author(s):  
Evandro Silva Freire Coutinho ◽  
Luciana Bahia ◽  
Laura Augusta Barufaldi ◽  
Gabriela de Azevedo Abreu ◽  
Thainá Alves Malhão ◽  
...  
Keyword(s):  
Information System ◽  
Relative Risk ◽  
Alcohol Consumption ◽  
Health System ◽  
Health Problem ◽  
Hospital Care ◽  
Meta Analysis ◽  
Direct Costs ◽  
Unified Health System ◽  
Consumption Rates

ABSTRACT OBJECTIVE To estimate the direct costs associated to outpatient and hospital care of diseases related to alcohol consumption in the Brazilian Unified Health System. METHODS Attributable populational risks were estimated for the selected diseases related to the use of 25 g/day or more of ethanol (risk consumption), considering a relative risk (RR) ≥ 1.20. The RR estimates were obtained from three meta-analysis. The risk consumption rates of the Brazilian population ≥ 18 years old were obtained by a national survey. Data from the Hospital Information System of SUS (HIS-SUS) were used to estimate the annual costs of the health system with the diseases included in the analysis. RESULTS The total estimated costs for a year regarding diseases related to risk consumption were U$8,262,762 (US$4,413,670 and US$3,849,092, for outpatient and hospital care, respectively). CONCLUSIONS Risk consumption of alcohol is an important economic and health problem, impacting significantly the health system and society.

scholarly journals Childhood thyroid cancer in Belarus

Nature ◽  
1992 ◽  
Vol 359 (6397) ◽  
pp. 681-681 ◽  
Author(s):  
I. Shigematsu ◽  
J. W. Thiessen
Keyword(s):  
Thyroid Cancer ◽  
Childhood Thyroid Cancer

Lessons From Chernobyl; Need for Molecular Epidemiology of Childhood Thyroid Cancer

2002 ◽  
pp. 184-197
Author(s):  
Shunichi Yamashita ◽  
Hiroyuki Namba ◽  
Noboru Takamura ◽  
Kiyoto Ashizawa ◽  
Yoshisada Shibata
Keyword(s):  
Thyroid Cancer ◽  
Molecular Epidemiology ◽  
Childhood Thyroid Cancer

scholarly journals Obesity Trends and Body Mass Index Changes After Starting Antiretroviral Treatment: The Swiss HIV Cohort Study

2014 ◽  
Vol 1 (2) ◽  
Author(s):  
Barbara Hasse ◽  
Martin Iff ◽  
Bruno Ledergerber ◽  
Alexandra Calmy ◽  
Patrick Schmid ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Cohort Study ◽  
Body Mass ◽  
Obesity Prevalence ◽  
Related Factors ◽  
White Ethnicity ◽  
Body Mass Index Increase ◽  
Obesity Trends ◽  
Multivariable Analyses ◽  
Population Demographic

Abstract Background.  The factors that contribute to increasing obesity rates in human immunodeficiency virus (HIV)-positive persons and to body mass index (BMI) increase that typically occurs after starting antiretroviral therapy (ART) are incompletely characterized. Methods.  We describe BMI trends in the entire Swiss HIV Cohort Study (SHCS) population and investigate the effects of demographics, HIV-related factors, and ART on BMI change in participants with data available before and 4 years after first starting ART. Results.  In the SHCS, overweight/obesity prevalence increased from 13% in 1990 (n = 1641) to 38% in 2012 (n = 8150). In the participants starting ART (n = 1601), mean BMI increase was 0.92 kg/m2 per year (95% confidence interval, .83–1.0) during year 0–1 and 0.31 kg/m2 per year (0.29–0.34) during years 1–4. In multivariable analyses, annualized BMI change during year 0–1 was associated with older age (0.15 [0.06–0.24] kg/m2) and CD4 nadir &lt;199 cells/µL compared to nadir &gt;350 (P &lt; .001). Annualized BMI change during years 1–4 was associated with CD4 nadir &lt;100 cells/µL compared to nadir &gt;350 (P = .001) and black compared to white ethnicity (0.28 [0.16–0.37] kg/m2). Individual ART combinations differed little in their contribution to BMI change. Conclusions.  Increasing obesity rates in the SHCS over time occurred at the same time as aging of the SHCS population, demographic changes, earlier ART start, and increasingly widespread ART coverage. Body mass index increase after ART start was typically biphasic, the BMI increase in year 0–1 being as large as the increase in years 1–4 combined. The effect of ART regimen on BMI change was limited.

Sign in / Sign up

Export Citation Format

Share Document