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Development of an intervetion to reduce salt intake of school children

Research Project

Project/Area Number 18K10085
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
Research InstitutionYamaguchi University

Principal Investigator

Okuda Masayuki  山口大学, 大学院創成科学研究科, 教授 (50274171)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsナトリウム / 食塩 / 小児 / 小学生 / 尿 / カリウム / クレアチニン / 推定式 / ナトリウム摂取量 / カリウム摂取量 / 中学生 / 食事 / 栄養 / 食事調査 / 摂取量 / 食塩摂取 / 尿排泄量 / 食生活習慣 / 採尿 / 生活習慣
Outline of Final Research Achievements

I developed estimation methods of daily urinary sodium and potassium excretion using overnight urine sample, body height and weight, and age of primary school students in addition with junior high school students. Overnight urine sampling is generally used in the medical checkup according to the School Health and Safety Action, so these estimation methods are available widely for Japanese children and adolescents. Using the estimation methods, dietary consumption of foods related to sodium and potassium intake (estimated daily excretion from overnight urine) were clarified in Japanese 5th and 8th graders. Sodium intake was positively associated with pickled vegetables, and miso (fermented soybeans). Potassium intake was positively associated with fruits, and milk and dairy products, but negatively associated with sugar-sweetened beverages. Sodium to potassium ratio was negatively associated with fruits, and milk and dairy products, but negatively associated with beverages.

Academic Significance and Societal Importance of the Research Achievements

調査対象となった小学生の食塩摂取量は成人と変わらないぐらい高いことがわかった。小学校高学年、中学生で、学校健康診断に用いる同じ方法で採取した早朝尿を用いて、食塩摂取量、カリウム摂取量を推定することができるようになった。大きな集団で調査対象の負担や費用を抑えて食塩摂取量やカリウム摂取量を評価できる。また、簡易型自記式食事歴法質問票BDHQから得た習慣的な食品摂取のうち、食塩摂取量を減らすには、漬物、味噌の摂取量に注意し、ナトリウムカリウム比から乳製品や果物の摂取量を増やすことが、将来の疾病発症予防に効果があることが示唆された。これらの結果を参考に、食育などの健康教育を行うべきである。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (3 results)

  • [Journal Article] Assessment of Foods Associated with Sodium and Potassium Intake in Japanese Youths Using the Brief-Type Self-Administered Diet History Questionnaire2021

    • Author(s)
      Okuda Masayuki、Sasaki Satoshi
    • Journal Title

      Nutrients

      Volume: 13 Issue: 7 Pages: 2345-2345

    • DOI

      10.3390/nu13072345

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Adherence to the Japanese Food Guide: The Association between Three Scoring Systems and Cardiometabolic Risks in Japanese Adolescents2021

    • Author(s)
      Okuda Masayuki、Fujiwara Aya、Sasaki Satoshi
    • Journal Title

      Nutrients

      Volume: 14 Issue: 1 Pages: 43-43

    • DOI

      10.3390/nu14010043

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Composition of Dietary Fatty Acids and Health Risks in Japanese Youths2021

    • Author(s)
      Okuda, M.; Fujiwara, A.; Sasaki S.
    • Journal Title

      Nutrients

      Volume: 13 Issue: 2 Pages: 426-426

    • DOI

      10.3390/nu13020426

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of daily sodium and potassium excretion from overnight urine of Japanese children and adolescents2020

    • Author(s)
      Okuda, M.; Asakura, K.; Sasaki S.
    • Journal Title

      Environmental Health and Preventive Medicine

      Volume: 25 Issue: 1 Pages: 74-74

    • DOI

      10.1186/s12199-020-00911-3

    • NAID

      210000158686

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Added and Free Sugars Intake and Metabolic Biomarkers in Japanese Adolescents2020

    • Author(s)
      Okuda, M.; Fujiwara, A.; Sasaki S.
    • Journal Title

      Nutrients

      Volume: 12 Issue: 7 Pages: 2046-2046

    • DOI

      10.3390/nu12072046

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Relationship between Functional Constipation and Dietary Habits in School-Age Japanese Children2019

    • Author(s)
      Okuda, M.; Kunitsugu, I.; Yoshitake, N.; Sasaki, S.
    • Journal Title

      Journal of Nutritional Science and Vitaminology

      Volume: 65 Issue: 1 Pages: 38-44

    • DOI

      10.3177/jnsv.65.38

    • NAID

      130007604645

    • ISSN
      0301-4800, 1881-7742
    • Year and Date
      2019-02-28
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gender differences in physical activity and sedentary behavior of Japanese primary school children during school cleaning time, morning recess and lunch recess2019

    • Author(s)
      Tanaka Chiaki、Tanaka Maki、Inoue Shigeru、Okuda Masayuki、Tanaka Shigeho
    • Journal Title

      BMC Public Health

      Volume: 19 Issue: 1 Pages: 985-985

    • DOI

      10.1186/s12889-019-7256-5

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Protein Intake Estimated from Brief-Type Self-Administered Diet History Questionnaire and Urinary Urea Nitrogen Level in Adolescents2019

    • Author(s)
      Okuda, M.; Asakura, K.; Sasaki, S.
    • Journal Title

      Nutrients

      Volume: 11 Issue: 2 Pages: 2-2

    • DOI

      10.3390/nu11020319

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 小児用簡易型自記式食事歴質問票BDHQの回答者のNaとKの推定値2021

    • Author(s)
      奥田昌之
    • Organizer
      第80回日本公衆衛生学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 食物繊維摂取量と小中学生の機能便秘2019

    • Author(s)
      奥田昌之
    • Organizer
      第78回日本公衆衛生学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 中学生1日尿中食塩排泄量の関連生活行動要因2018

    • Author(s)
      奥田昌之、朝倉敬子、佐々木敏
    • Organizer
      第77回日本公衆衛生学会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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