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Promoting hand washing with soap in developing countries using a positive deviance approach

Research Project

Project/Area Number 19K10665
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 InstitutionUniversity of the Ryukyus

Principal Investigator

NONAKA DAISUKE  琉球大学, 医学部, 准教授 (00538275)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords石鹸 / 手洗い / 下痢症 / ラオス / 5歳未満児 / ポジティブデビアンス / 地域 / 衛生 / 途上国
Outline of Research at the Start

途上国の農村では、下痢症は主要な健康問題の一つである。下痢症罹患エピソードの30%前後は、石鹸を用いた手洗い行動によって予防可能といわれている。しかし、その行動は普及していない。本研究の目的は、途上国の農村にて、石鹸を用いた手洗いを日常的に行っている住民(ポジデビ)に注目し、手洗い行動の促進・維持に関与していると推定されるポジデビの特徴を発見し、その特徴を他の住民が取り入れることによって、村全体に手洗い行動を普及させることができるかどうかを調べることである。ラオス国セポン郡の5村に住む住民(合計おおよそ1,000~2,000人)を対象者とする。研究期間は2019年~2021年である。

Outline of Final Research Achievements

Because of the COVID-19 pandemic, we were unable to carry out filed surveys in Lao PDR. Therefore, for this study, we used data that were collected through a nationwide household survey in 2017. As a result of multi-variate analyses where potential confounding factors were statistically controlled, we demonstrated that children under five years of age whose households did not place a soap at handwashing facility were significantly more likely to report a diarrhea episode, compared to their counterparts whose households placed a soap at handwashing facility. We also demonstrated that it depended on the level of the economy and educational attainment of household heads whether households placed a soap at handwashing facility.

Academic Significance and Societal Importance of the Research Achievements

途上国の農村では、下痢症は主な健康問題の一つである。下痢症罹患の約30%は、石鹸を用いた手洗い行動によって予防可能といわれているものの、その行動は普及していない。
本研究は、ラオス国において石鹸を用いた手洗い普及するための情報を提供することができた。すなわち、手洗い場に石鹸を設置する世帯を増やすことによって、5歳未満児の下痢症の罹患率を減少できる可能性を示した。加えて、石鹸を入手しやすくすることや石鹸使用の重要性を教育すること等によって、石鹸を設置する世帯が増える可能性を示した。

Report

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

    (13 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] Lao Tropical and Public Health Institute(ラオス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Lao Tropical Public Health Institute(ラオス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Lao Tropical and Public Health Institute/Savannakhet Provincial Health Department(ラオス)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Association Between Socio-Economic Status and the Presence of Soap at Handwashing Facilities in Lao People’s Democratic Republic: A Cross-Sectional Study2022

    • Author(s)
      Muramatsu-Noguchi Yuko、Nonaka Daisuke、Kounnavong Sengchanh、Kobayashi Jun
    • Journal Title

      Asia Pacific Journal of Public Health

      Volume: Online ahead of print Issue: 4 Pages: 423-426

    • DOI

      10.1177/10105395211072478

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of Hand-Washing Facilities with Water and Soap on Diarrhea Incidence among Children under Five Years in Lao People’s Democratic Republic: A Cross-Sectional Study2021

    • Author(s)
      Noguchi Yuko、Nonaka Daisuke、Kounnavong Sengchanh、Kobayashi Jun
    • Journal Title

      International Journal of Environmental Research and Public Health

      Volume: 18 Issue: 2 Pages: 687-687

    • DOI

      10.3390/ijerph18020687

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Is the place of birth related to the mother’s satisfaction with childbirth? A cross-sectional study in a rural district of the Lao People’s Democratic Republic (Lao PDR)2019

    • Author(s)
      Takayama Tomomi、Phongluxa Khampheng、Nonaka Daisuke、Sato Chika、Gregorio Ernesto R.、Inthavong Nouhak、Pongvongsa Tiengkham、Kounnavong Sengchanh、Kobayashi Jun
    • Journal Title

      BMC Pregnancy and Childbirth

      Volume: 19 Issue: 1 Pages: 333-333

    • DOI

      10.1186/s12884-019-2483-4

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Association between Socio-Economic Status and the Presence of Soap at Handwashing Place in Lao People’s Democratic Republic: A Cross-Sectional Study2021

    • Author(s)
      Yuko Muramatsu Noguchi, Daisuke Nonaka, Sengchanh Kounnavong, Jun Kobayashi
    • Organizer
      52nd Asia-Pacific Academic Consortium for Public Health (APACPH) Conference. October 27-28, 2021 Online
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of handwashing facility with water and soap on diarrhea among children under five years in Lao People’s Democratic Republic: a cross-sectional study.2020

    • Author(s)
      Yuko Noguchi, Daisuke Nonaka, Sengchanh Kounnavong, Jun Kobayashi.
    • Organizer
      グローバルヘルス合同学会 2020 大 阪, オンライン大会, 2020 年 11 月 1-3 日
    • Related Report
      2020 Research-status Report
  • [Presentation] Identifying potential risk factors for common health problems in rural villages of Lao People’s Democratic Republic(Lao PDR)using primary health care concept2019

    • Author(s)
      Daisuke Nonaka,Nouhak Inthavong,Kenzo Takahashi,Ketmany Chanthakoumane, Yuko Toyama,Chanthaly Luangphaxay,Tiengkham Pongvongsa, Sengchanh Kounnavong
    • Organizer
      第 60 回日本熱帯医学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Monitoring Dengue Hot Spots in Quezon City, Philippines to Direct the Focus of Control and Prevention Efforts2019

    • Author(s)
      John Robert Medina,Daisuke Nonaka,Roland Cruz,Melvin Abrigo,Verdades Linga, Richard Maude,Jun Kobayashi
    • Organizer
      第 60 回日本熱帯医学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Intestinal helminth infections in HIV-infected patients in Savannakhet after establishment of an HIV registration network in Lao People’s Democratic Republic2019

    • Author(s)
      Yukako Kaneshiro,Naoki Imaizumi,Daisuke Nonaka,Sourinphoumy Khamphang4), Tiengkham Pongvongsa5),Megumi Miyara6),Shugo Sakihama,Sengchanh Kounnavong, Jun Kobayashi,Takuya Fukushima
    • Organizer
      第 60 回日本熱帯医学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Summaries of the SATREPS Project for Parasitic Diseases in Laos from 2014 to 20192019

    • Author(s)
      Moritoshi Iwagami,Masami Nakatsu,Phonepadith Khattignavong, Takashi Kumagai,Ken Ong,Masamine Jimba,Daisuke Nonaka,Jun Kobayashi, Bouasy Hongvanthong,Paul Brey,Shigeyuki Kano
    • Organizer
      第 60 回日本熱帯医学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 出産場所は母親の出産満足度と関連しているか;ラオス農村地域における横断研究2019

    • Author(s)
      高山 智美,Khampheng Phongluxa,野中 大輔,佐藤 慈,Ernesto Jr. Gregorio4, Nouhak Inthavong,Tiengkham Pongvongsa,Sengchanh Kounnavong,小林 潤
    • Organizer
      第 60 回日本熱帯医学会大会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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