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2024年2月2日更新
Basic Survey (Estimation of external radiation exposure dose)(Japanese Only)
- External exposure doses were estimated from activity records over four months following the nuclear accident for 2,055,236 residents in the prefecture as of 11 March 2011.
- Out of the 467,256 people (as of the end of March 2023) who responded to the survey excluding those with experience in radiation work and those whose estimated exposure period was less than four months, 99.8% were exposed to less than 5 mSv (millisieverts), with the maximum value being 25 mSv.
*Total number of respondents: 569,438 (response rate: 27.7%)
Estimation results of external radiation exposure dose
【Prefecture-wide result】 Percentage of individuals with radiation exposure dose 0 to below 2ｍSv: 93.8% (excluding indivisuals with radiation work experience)
Thyroid Ultrasound Examination（Ultrasound examination to assess the condition of thyroid）(Japanese Only)
Ultrasound examinations were conducted to Fukushima residents who were around 18 years old or younger at the time of the disaster.
１ Preliminary baseline screening (As of March 31, 2018) [Conducted in FY2011-2013]
| Number of eligible individuals | 367,637 people | |
|---|---|---|
| Number of examinees | 300,472 people（Examination rate 81.7%） | |
| Number of results acquired | 300,472 people（Aquisition rate 100.0%） | |
| A (A1) classification | 154,605 people（51.5%） | |
| A (A2) classification | 143,573 people（47.8%） | |
| B classification | 2,293 people（ 0.8%） | |
| C classification | 1 person（ 0.0%） | |
| Number of eligible individuals | 2,293 people |
|---|---|
| Number of examinees | 2,130 people（Examination rate 92.9%） |
| Number of confirmed diagnosis | 2,091 people (Diagnose rate: 98.2%) Of which, cases with malignancy or suspected malignancy: 116 people |
２ Full scale examination (Second round examination) (As of March 31, 2021) [Conducted in FY2014-2015]
| Number of eligible individuals | 381,237 people | |
|---|---|---|
| Number of examinees | 270,552 people（Examination rate 71.0%） | |
| Number of results acquired | 270,552 people（Aquisition rate 100.0%） | |
| A (A1) classification | 108,726 people（40.2%） | |
| A (A2) classification | 159,596 people（59.0%） | |
| B classification | 2,230 people（ 0.8%） | |
| C classification | 0 people（ 0.0%） | |
| Number of eligible individuals | 2,230 people |
|---|---|
| Number of examinees | 1,877 people（Examination rate 84.2%） |
| Number of confirmed diagnosis | 1,834 people (Diagnose rate: 97.7%) Of which, cases with malignancy or suspected malignancy: 71 people |
３ Full Scale Examination (Third round examination) (As of March 31, 2021) [Conducted in FY2016-2017]
| Number of eligible individuals | 336,667 people（Excluding individuals born in FY1992-1993, the subjects of the milestone examination at the age of 25） |
|---|---|
| Number of examinees | 217,922 people（Examination rate 64.7%） |
| Number of results acquired | 217,922 people（Aquisition rate 100.0%） |
| Number of eligible individuals | 1,502 people |
|---|---|
| Number of examinees | 1,104 people（Examination rate 73.5%） |
| Number of confirmed diagnosis | 1,068 people（Diagnose rate: 96.7%） Of which, cases with malignancy or suspected malignancy: 31 people |
４ Full Scale Examination (Fourth round examination) (As of June 30, 2022) [Conducted in FY2018-2019]
| Number of eligible individuals | 294,228 people（Excluding individuals born in FY1992-1995, the subjects of the milestone examination at the age of 25） | |
|---|---|---|
| Number of examinees | 183,410 people（Examination rate 62.3%） | |
| Number of results acquired | 183,410 people（Aquisition rate 100.0%） | |
| A (A1) classification | 61,712 people（33.6%） | |
| A (A2) classification | 120,304 people（65.6%） | |
| B classification | 1,394 people（ 0.8%） | |
| C classification | 0 people（ 0.0%） | |
| Number of eligible individuals | 1,394 people |
|---|---|
| Number of examinees | 1,036 people（Examination rate 74.3%） |
| Number of confirmed diagnosis | 1,016 people (Diagnose rate: 98.1%) Of which, cases with malignancy or suspected malignancy: 39 people |
５ Full Scale Examination (Fifth round examination) (As of September 30, 2023)[Conducted in FY2020-2022]
| Number of eligible individuals | 252,938 people（Excluding individuals born in FY1992-1997, subjects of the milestone examination） | |
|---|---|---|
| Number of examinees |
113,941 people（Examination rate 45.0%） |
|
| Number of results acquired | 113,941 people（Aquisition rate 100.0%） | |
| A (A1) classification | 32,840 people（28.8%） | |
| A (A2) classification | 79,755 people（70.0%） | |
| B classification | 1,346 people（1.2%） | |
| C classification | 0 people（0.0%） | |
| Number of eligible individuals | 1,346 people |
|---|---|
| Number of examinees | 1,060 people（Examination rate 78.8%） |
| Number of confirmed diagnosis | 1,007 people (Diagnose rate: 95.0%) Of which, cases with malignancy or suspected malignancy: 43 people |
6 Full Scale Examination (Sixth round examination) (As of September 30, 2023)[Conducted in FY2023-2024]
| Number of eligible individuals | 211,875 people（Excluding individuals born in FY1992-1999, subjects of the milestone examination） | |
|---|---|---|
| Number of examinees |
18,304 people（Examination rate 8.6%） |
|
| Number of results acquired | 9,978 people（Aquisition rate 54.5%） | |
| A (A1) classification | 2,760 people（27.7%） | |
| A (A2) classification | 7,100 people（71.2%） | |
| B classification | 118 people（1.2%） | |
| C classification | 0 people（0.0%） | |
7 Milestone Examination at the age of 25 (As of September 30, 2023) [Conducted in FY2017 onwards]
| Number of eligible individuals | 129,006 people（Born in FY1992-1997） | |
|---|---|---|
| Number of examinees | 11,867 people（Examination rate 9.2%） | |
| Number of results acquired | 11,858 people（Aquisition rate 99.9%） | |
| A (A1) classification | 5,039 people（42.5%） | |
| A (A2) classification | 6,172 people（52.0%） | |
| B classification | 647 people（5.5%） | |
| C classification | 0 people（ 0.0%） | |
| Number of eligible individuals | 647 people |
|---|---|
| Number of examinees | 545 people（Examination rate 84.2%） |
| Number of confirmed diagnosis | 535 people (Diagnose rate: 98.2%) Of which, cases with malignancy or suspected malignancy: 23 people |
8 Milestone examination at age 30 (As of September 30, 2023) [Conducted in FY2022 onwards]
| Number of eligible individuals | 22,625 people（Born in FY1992） | |
|---|---|---|
| Number of examinees | 1,571 people（Examination rate 6.9%） | |
| Number of results acquired | 1,562 people（Aquisition rate 99.4%） | |
| A (A1) classification | 696 people（44.6%） | |
| A (A2) classification | 732 people（46.9%） | |
| B classification | 134 people（8.6%） | |
| C classification | 0 people（ 0.0%） | |
| Number of eligible individuals | 134 people |
|---|---|
| Number of examinees | 107 people（Examination rate 79.9%） |
| Number of confirmed diagnosis | 96 people (Diagnose rate: 89.7%) Of which, cases with malignancy or suspected malignancy: 5 people |
*Those who receive a B or C in the primary examination are invited to undergo a confirmatory examination.
Comprehensive Health Checkup (General health checkup items and differential count of leukocytes)(Japanese Only)
| Number of eligible individuals | Number of examinees | Examination rate | |
|---|---|---|---|
| For those aged 15 and below | 18,253 people | 1,704 people | 9.3％ |
| For those aged 16 and above | 193,195 people | 34,269 people | 17.7％ |
| Overall | 211,448 people | 35,973 people | 17.0% |
Mental Health and Lifestyle Survey (Questionnaire survey conducted for residents in evacuation zones and other relevant regions)(Japanese Only)
| Number of eligible individuals | Number of valid responses | Response rate |
|---|---|---|
| 196,569 people | 40,749 people | 20.7% |
Pregnancy and Birth Survey (Questionnaire survey for mothers with maternal and child health handbook)(Japanese Only)
- The survey was conducted to understand the mental and physical health of pregnant and postpartum women, reduce anxiety, and provide necessary care.
- The survey consists of a "Main Survey" conducted about one year after a pregnancy notification has been submitted and "Follow-up Surveys" conducted four and eight years after childbirth.
- The Main Survey ended in FY2022 because the rates of premature birth, low birth weight, and congenital anomalies were found to be almost no different from government statistics and generally reported data.
- For more detailed results of the survey, please see the link below.
About Fukushima Health Management Survey "Pregnancy and Birth Survey" (Japanese only)
Internal radiation exposure examination using whole-body counter (Measurement of internal radiation dose to the entire human body)(Japanese Only)
The examination measures the radioactive cesium absorbed into the body from the atmosphere, food and other sources using a whole-body counter, and estimates the radiation dose expected to be received over a lifetime.
- For the latest survey status of internal exposure testing using whole-body counters, please refer to the link below.
Results of internal exposure testing using whole-body counters(Japanese Only)
Fukushima Health Management Survey Investigative Committee
For Fukushima Health Management Survey, an investigative committee consisting of experts has been established for professional insight.
For the latest survey status of the Fukushima Health Management Survey, please refer to the materials of Investigative Commitee at the links below.
Fukushima Health Management Survey Investigative Committee(Japanese Only)
