1
|
Ozaki A, Murakami M, Tanimoto T, Tsubokura M. Science as the foundation for decision-making: China's ambivalent response to Fukushima's tritium water discharge. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2024; 44:014501. [PMID: 38533957 DOI: 10.1088/1361-6498/ad1cd2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/09/2024] [Indexed: 03/28/2024]
Affiliation(s)
- Akihiko Ozaki
- Department of Breast and Thyroid Surgery, Jyoban Hospital of Tokiwa Foundation, Iwaki City, Fukushima, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University, Fukushima City, Fukushima, Japan
| | - Michio Murakami
- Center for Infectious Disease Education and Research, Osaka University, Suita City, Osaka, Japan
| | - Tetsuya Tanimoto
- Department of Internal Medicine, Navitas Clinic Kawasaki, Kawasaki City, Kanagawa, Japan
- Department of Internal Medicine, Jyoban Hospital of Tokiwa Fondation, Iwaki City, Fukushima, Japan
| | - Masaharu Tsubokura
- Department of Radiation Health Management, Fukushima Medical University, Fukushima City, Fukushima, Japan
| |
Collapse
|
2
|
Nakaya T, Takahashi K, Takahashi H, Yasumura S, Ohira T, Shimura H, Suzuki S, Suzuki S, Iwadate M, Yokoya S, Ohto H, Kamiya K. Revisiting the Geographical Distribution of Thyroid Cancer Incidence in Fukushima Prefecture: Analysis of Data From the Second- and Third-round Thyroid Ultrasound Examination. J Epidemiol 2022; 32:S76-S83. [PMID: 36464303 PMCID: PMC9703926 DOI: 10.2188/jea.je20210165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND After the first-round (Preliminary Baseline Survey) ultrasound-based examination for thyroid cancer in response to the accident at the Fukushima Daiichi Nuclear Power Plant in 2011, two rounds of surveys (Full-scale Survey) have been carried out in Fukushima Prefecture. Using the data from these surveys, the geographical distribution of thyroid cancer incidence over 6 or 7 years after the disaster was examined. METHODS Children and adolescents who underwent the ultrasound-based examinations in the second- and/or third-round (Full-scale) survey in addition to the first-round survey were included. With a discrete survival model, we computed age, sex, and body mass index standardized incidence ratios (SIRs) for municipalities. Then, we employed spatial statistics to assess geographic clustering tendency in SIRs and Poisson regression to assess the association of SIRs with the municipal average absorbed dose to the thyroid gland at the 59-municipality level. RESULTS Throughout the second- and third-round surveys, 99 thyroid cancer cases were diagnosed in the study population of 252,502 individuals. Both flexibly shaped spatial scan statistics and maximized excess events test did not detect statistically significant spatial clustering (P = 0.17 and 0.54, respectively). Poisson regression showed no significant dose-response relationship: the estimated relative risks of lowest, middle-low, middle-high, and highest areas were 1.16 (95% confidence interval [CI], 0.52-2.59), 0.55 (95% CI, 0.31-0.97), 1.05 (95% CI, 0.79-1.40), and 1.24 (95% CI, 0.89-1.74). CONCLUSION There was no statistical support for geographic clustering or regional association with radiation dose measures of the thyroid cancer incidence in the cohort followed up to the third-round survey (fiscal years 2016-2017) in Fukushima Prefecture.
Collapse
Affiliation(s)
- Tomoki Nakaya
- Graduate School of Environmental Studies, Tohoku University, Miyagi, Japan,Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Kunihiko Takahashi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Biostatistics, M&D Data Science Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideto Takahashi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,National Institute of Public Health, Saitama, Japan
| | - Seiji Yasumura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Public Health, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tetsuya Ohira
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hiroki Shimura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Laboratory Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Satoru Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Satoshi Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Manabu Iwadate
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Thyroid and Endocrinology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Susumu Yokoya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,Thyroid and Endocrine Center, Fukushima Medical University, Fukushima, Japan
| | - Hitoshi Ohto
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Kenji Kamiya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan,Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| |
Collapse
|