Comprehensive Health Check

Implementation Status

Number of eligible persons, participants, and participation rates

Residents ages 15 and younger

  • The participation rate of those ages 15 and younger was 12.4% in FY2021. Compared with the rate of 13.5% in FY2020, this was a 1.1 point decrease, but the decline has been slower than in past years.

Residents ages 16 and older

  • The participation rate of those ages 16 and older was 17.3% in FY2021. Compared with the rate of 16.0% in FY2020, it was a 1.3 point increase. The main reason for this increase is thought to be that those who had refrained from receiving a Health Check due to concerns over COVID-19 infection began to participate in FY2021.

Yearly changes in major Health Check items (Age Group: 15 or younger)

Obesity

  • The percentage with obesity (BMI-SD score ≥2) among boys ages 0 to 5 at the time of participation was highest in FY2011, and showed gradual decrease to FY2014, but has not shown a consistent trend thereafter.
  • The percentage with obesity (BMI-SD score ≥2) among girls ages 0 to 5 at the time of participation was also highest in FY2011, and showed gradual decrease to FY2016, but has not shown a consistent trend thereafter.
  • The percentage with obesity (BMI-SD score ≥2) among both boys and girls ages 6 to 15 at the time of participation was highest in FY2011, and showed gradual decline to FY2016, but has not showed a consistent trend thereafter.

*Calculated BMI Standard Deviation Score (BMI-SD Score), based on height and weight measurements, determined ≥2 as obesity.

Lipid abnormality

  • The percentage of LDL-C ≥140mg/dL has tended to repeatedly increase and decrease among both boys and girls, but an increase was observed in FY2021.

  • The percentage of boys with triglycerides ≥140mg/dL has tended to repeatedly increase and decrease from FY2011 to FY2020, but an increase was observed in FY2021. Among girls, no significant changes were observed.

  • The percentage of HDL-C less than 40 mg/dL dL has tended to repeatedly increase and decrease, and has not shown a consistent trend.

*Lipid abnormalities were determined based on criteria of the Japan Atherosclerosis Society (JAS) Guidelines for Prevention of Atherosclerotic Cardiovascular Diseases 2022.

Year-to-Year Changes in Major Results (Age groups of 16 to 39, 40 to 64 and 65 and older)

Obesity

  • For males, there was an increase in FY2017 compared with FY2016 in all age group, but no significant changes were observed thereafter.
  • For females, a gradual increase was observed from FY2011 to FY2021 for those ages 16-39. For women ages 40-64, there was an increasing trend from FY2014 to FY2020, but it showed a slight decrease in FY2021. For those ages 65 and older, a slight decrease has been observed from FY2011 to FY2021.

*Calculated based on height and weight measurements, with obesity defined as 25.0 or higher.
BMI= weight(kg) / height(m) / height(m)

Urinary Glucose, Urinary Protein, Urinary Occult Blood

  • The percentage with urinary glucose levels of 1+ or higher has seen an increasing trend since FY2015 in the age group of 40 years and older.

  • The percentage with urinary protein levels of 1+ or higher has seen an increasing trend from FY2011 to FY2020 among those ages 16-39 years and 65 years and older, but a slightly decreasing trend was observed in FY2021.

  • The percentage with urinary occult blood levels of 1+ or higher showed a decreasing trend from FY2011 to FY2021 among those ages 65 and older.

*Abnormality of urine tests are determined based on the criteria used group health checks or individual health checks.

Diabetes

  • The percentage with diabetes (HbA1c 6.5% or higher) showed an increasing trend from FY2011 to FY2021 among those ages 65 and older.

*Criteria are based on Clinical Practice Guideline for Diabetes of the Japan Diabetes Society

Uric acid

  • The percentage of males ages 16-39 with uric acid levels ≥7.9mg/dL showed an increasing trend from FY2011 to FY2020, but a decrease was observed in FY2021.
  • The percentage of females ages 16-39 and 40-64 with uric acid level ≥5.6mg/dL showed an increasing trend from FY2011 to FY2021.

*Criteria are based on the Japanese Committee for Clinical Laboratory Standards (JCCLS) Certified Reference Standard.

Summary

By ascertaining health conditions of the residents of evacuation areas, etc. through the Comprehensive Health Check, it was found that reduced physical activity and changes in diet due to evacuation may have affected the increases in residents' obesity and overweight, and some diseases for which life as evacuees constitutes a risk factor were identified.

Residents ages 15 and younger

  • The health check revealed the existence of a certain number of children who came to have obesity, hyperlipidemia, hyperuricemia, hepatic dysfunction, hypertension, and impaired glucose tolerance after the earthquake disaster.
  • Subsequent follow-up surveys show an improvement in those children's obesity but an improvement of hyperlipidemia has been delayed.

Residents ages 16 and older

  • The analysis of WBC counts and DLCs of examinees within one year after the earthquake disaster revealed no direct impact of radiation.
  • After the disaster, increases were observed in the incidence of obesity, hypertension, hyperlipidemia, diabetes, renal dysfunction, hepatic dysfunction, hyperuricemia, and polycythemia, and this suggests the possibility of an indirect impact of radiation (impact on health due to changes in living environment caused by evacuation, etc.). On the other hand, the percentage of those receiving treatment increased and examinees' blood pressure values and LDL cholesterol counts showed signs of improvements. Additionally, an improvement of hepatic dysfunction was confirmed in association with better physical activity and diet.
  • The analysis of changes in living environment, psychological indices, and health check items showed the association between posttraumatic stress disorder (PTSD) and metabolic syndrome.

Outline of the Comprehensive Health Check

Purpose

The Great East Japan Earthquake and the accident at TEPCO‘s Fukushima Daiichi NPS led to a large-scale evacuation of residents. Many of the evacuees have since been concerned about their own health due primarily to significant changes in their lifestyle such as diet and exercise habits, in addition to the loss of opportunity to undergo necessary health check. The Comprehensive Health Check was launched for residents in evacuation areas, with the aim of ascertaining their health status and using such data for the prevention of lifestyle diseases and early detection and treatment of diseases.

Eligible persons

  • Those who were registered as residents in the covered area* from March 11, 2011 to April 1, 2012 (even after moving out of the area)
  • Those who are registered as residents in the officially designated evacuation zone as of April 1 of each year of the CHC
  • Other than those above, as necessary, based on Basic Survey results.

* Covered area: 13 municipalities designated by the national government as evacuation zones in 2011
Hirono Town, Naraha Town, Tomioka Town, Kawauchi Village, Okuma Town, Futaba Town, Namie Town, Katsurao Village, Iitate Village, Minamisoma City, Tamura City, Kawamata Town, and parts of Date City (specific spots recommended for evacuation)

Health check items by age group

Age group Health check items
Ages 0-6 (preschool children and infants) Height, weight
[The items below are performed upon request]
CBC (number of red blood cells, hematocrit, hemoglobin, platelet count, number of white blood cells, differential white blood count)
Ages 7-15 (1st to 9th grade) Height, weight, blood pressure, CBC (number of red blood cells, hematocrit, hemoglobin, platelet count, number of white blood cells, differential white blood count)
[The items below are performed upon request]
Blood biochemistry (AST, ALT, γ-GT, TG, HDL-C, LDL-C, HbA1c, plasma glucose, serum creatinine, uric acid)
Ages 16 and older Height, weight, abdominal circumference (BMI), blood pressure, CBC (Number of red blood cells, hematocrit, hemoglobin, platelet count, number of white blood cells, differential white blood count), Urine test (urine sugar, urine protein, urine occult blood), Blood biochemistry (AST, ALT, γ-GT, TG, HDL-C, LDL-C, HbA1c, plasma glucose, serum creatinine, estimated glomerular filtration rate [eGFR], uric acid)
*The underlined values are not measured in specific health checks.

Implementation method

Age Place of regidence Implementation method
15 and younger In the prefecture Pediatric health checks at designated health check facilities in the prefecture
Outside the prefecture Pediatric health checks at designated health check facilities in outside the prefecture
16 and older In the prefecture
  • Additional health check items are added to specific health checks or general health checks conducted by the municipalities
  • Individual health checks conducted at designated health check facilities in the prefecture
  • Group health checks conducted by FMU
Outside the prefecture
  • Additional health check items are added to the specific health checks or general health checks conducted by the municipalities
  • Individual health checks conducted outside the prefecture