SEARCH
Search Details
TSUCHIYA-TEORIN ChihiroGraduate School of Health Sciences / Faculty of Health SciencesAssociate Professor
Research activity information
■ Award■ Paper
- Abstract Non-communicable diseases (NCDs) are the leading causes of death globally, and Pacific Island countries have among the world’s highest rates of obesity and diabetes. While social networks shape health behaviors, their relation to NCD risk and gender differences in the Pacific remains understudied. This cross-sectional study involved 190 adults (66 men, 124 women) from urban and peri-urban neighborhoods in Honiara, Solomon Islands. Participants completed egocentric social network interviews, structured questionnaires, and health assessments. Multiple regression analyses were stratified by sex, and interaction models tested gender differences. The results revealed that close family members were the most frequent support providers for important discussions and help-seeking among men and women, followed by relatives. Women were significantly more likely to discuss personal matters with spouses (34.7% vs. 19.7%, p = 0.044) and seek help from them (27.4% vs. 10.6%, p = 0.009). Among men, discussing health issues with relatives was associated with lower fasting blood glucose (β = − 40.04, 95% CI − 76.46 to − 3.62, p = 0.031). Among women, discussing important matters (β = 25.99, p < 0.001) and seeking help from non-family members (β = 20.59, p = 0.0048) were associated with higher body mass index (BMI). Social support’s health effects depend on its source and cultural context. Kin-based networks may protect men’s glucose regulation, whereas non-family ties may contribute to women’s higher BMI, possibly reflecting communal eating practices. These findings highlight the need for gender-sensitive, culturally informed public health strategies in the Pacific.Lead, Springer Science and Business Media LLC, Feb. 2026, Discover Public Health, 23(1) (1)Scientific journal
- Lead, Dec. 2025, BMJ Nutrition, Prevention & Health[Refereed]Scientific journal
- May 2025, Journal of Japanese Society for International Nursing, 8(2) (2), 12[Refereed]
- Lead, Nov. 2023, BMJ Nutrition, Prevention & Health, English, No password[Refereed]Scientific journal
- Mar. 2022, 京都大学, English, No passwordSocioeconomic, Behavioral, and Cultural Factors of Obesity in Urban Solomon Islands (Ph.D. thesis)[Refereed]Doctoral thesis
- Socioeconomic and Behavioral Factors Associated with Obesity Across Sex and Age in Honiara, Solomon IslandsThe Solomon Islands is currently experiencing a change in disease burdens, from communicable to non-communicable diseases. Obesity is one of the leading non-communicable diseases causing death. Urgent action is needed to decrease the high economic and personal costs associated with obesity. This study proposes to determine behavioral and socioeconomic factors associated with obesity among different sex and age groups in an urban area of the Solomon Islands. In 2016, a cross-sectional study was conducted among adults aged 20 to 80 in Honiara, the capital of the Solomon Islands. Anthropometric measurements and a survey of socioeconomic status (SES) and behavioral status were conducted among 176 participants using a questionnaire. Multiple linear regression analysis was used to identify the socioeconomic factors significantly associated with higher body mass index (BMI) by age group. The study found a high prevalence of overweight (34%) and obesity (48%) in both sexes. Multiple linear regression analysis found that having a high-income level and being married were positively associated with higher BMI among young adults. In the middle age groups, the highest income level was positively associated with higher BMI. Young and middle-aged adults with a high SES might consume higher calorie food, contributing to weight gain, but this needs confirmation. Moreover, getting married might lead to more consistent meals and weight gain among the young age group. These findings suggest that health professionals have to consider the influence of income level and marital status on lifestyle choices when planning interventions that promote healthy lifestyles.Lead, Feb. 2021, Hawai‘i Journal of Health & Social Welfare, 80(2) (2), 24 - 32, English, No password, International magazine[Refereed]Scientific journal
- Lead, Aug. 2017, Obesity Medicine, 7, 34 - 42, English, No passwordSocio-environmental and behavioral risk factors associated with obesity in the capital (Honiara), the Solomon Islands; case-control study[Refereed]Scientific journal
- Lead, Apr. 2017, Journal of International Health, 32(1) (1), 9 - 16, English, No password[Refereed]Scientific journal
- Joint work, 風響社, Mar. 2024, ISBN: 9784894893641オセアニアの気候変動と適応策
- 1344-8722, プチナース30(5), Apr. 2021感染症の歴史(第2回)
- Contributor, NCDs and Nursing, Nankodo, Apr. 2019, Japanese, ISBN: 9784524252640NiCE (Textbook about International nursing)
- Single work, JICA, 2014, EnglishKaikai blo Iumi (Recipe book to teach about nutrition in Solomon Islands)
- ソロモン諸島研究懇談会, Feb. 2025ソロモン諸島首都における非感染性疾患の社会的要因について
- Politics, Environment, and Life in Solomon Islands in the New Global Order, Jan. 2025Dietary Diversity and Its Association with Diet Quality and Health Status in the Solomon Islands and Palau
- 日本国際看護学会第８回学術集会, Oct. 2024海外におけるフィールドワーク調査の紹介
- 「気候変動下オセアニアの環境・社会・健康」, Mar. 2022ソロモン諸島のソーシャルキャピタルと健康について
- 日本地域看護学会第21回学術大会, Aug. 2018, Japanese, 日本地域看護学会, 岐阜県岐阜市, Domestic conference生活支援コーディネーター・行政・大学の協働による住民の支え合い体制構築を促進する方法の検討Poster presentation
- 5th Asia Pacific Conference on Public Health, Sep. 2017, English, International conferenceSocio-Environmental Risk Factors Associated with Obesity in the Capital, the Solomon IslandsOral presentation
- The 35th JAIH Western Regional Meeting, Apr. 2017, English, Domestic conferenceSocio-Environmental and Behavioral Risk Factors Associated with Obesity in the Capital, Solomon Islands; Case-Control StudyOral presentation
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), Kyoto University, Apr. 2024 - Mar. 2028, CoinvestigatorPolitical Ecology in Oceania under the New Global Order本研究は、政治生態学（ポリティカルエコロジー）の視点にたち、地域の生業や生態環境が、国政や国際関係と相互に関連しているという仮説を検証する。生態環境と外交姿勢の異なるソロモン、マーシャル、パラオ、フィジーで、学際融合研究チームによって、選挙区や島という小さなスケールにおける生態人類学研究、国という大きなスケールにおける政治研究、そして世界スケールにおける環境と国際関係の動態を研究する。ローカルとグローバルの政治生態学的変動の関連を解明する。岐路に立つグローバリズムの地域研究である。 ソロモン諸島に関する各国の外交政策や国内選挙について情報を集め、政治姿勢の異なる２州における観察と聞き取りを行った。 マーシャル諸島において、首都と近郊において観察と聞き取りを行い、政府・行政関係者からの聞き取りを行った。 パラオにおいて、環境条件の異なる地域を横断した観察と聞き取り調査を行った。 国際共同ワークショップを共催し、政治生態学からみたオセアニア島しょ国の動向、環境、健康についての研究成果報告と議論を行った。
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Grant-in-Aid for Scientific Research (A), Kyoto University, 01 Apr. 2020 - 31 Mar. 2024Impacts of Sea-level Rise and Adaptation on Oceanic Populations and Future Scenarios
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Jichi Medical University, 01 Apr. 2018 - 31 Mar. 2022Development of Education Programs for discharge panning in remote and rural areas本研究は、へき地医療に従事する看護職対象の退院支援に関する教育プログラム開発を目的としている。2020年度の課題は、１）現地対面でのインタビュー調査の実施、２）分析結果を活用し、教育プログラムに含めるべき学習項目を抽出、３）第2回専門家会議を経て、それらの妥当性を検討することであった。 １）については、COVID-19感染拡大の影響が終息次第、現地対面でのインタビュー調査を計画していた。しかし、年度途中に入り感染拡大の収束が見通せないと判断し、Web会議システムZoomを用いたインタビュー調査に変更した。また、調査協力の内諾を得ていた退院支援看護師が退職となったため、新たなリクルートを行い、離島での退院支援（在宅療養移行支援）に取り組む保健医療福祉職、計3名の調査協力を得た。3名は、病院地域連携室勤務のソーシャルワーカー、同病院併設訪問看護ステーション勤務の訪問看護師、同病院が所在する町の地域包括支援センター勤務の保健師であった。当該離島での退院支援（在宅療養移行支援）に関与度の高い職種であり、日頃から連携している保健医療福祉職から、離島における退院支援（在宅療養移行支援）について聴取できた意義は大きい。 ２）については、2020年度は逐語録の作成に留まり、データ分析、および教育プログラムに含めるべき学習項目抽出には至らなかった。このため、1年の補助事業期間延長を申請し、承認を得た。 現在データ分析中であり、2021年度内に分析結果を学会発表できるように進めている。また分析結果を活用し、教育プログラムに含めるべき学習項目、およびコンテンツを作成、専門家会議を経てそれらの妥当性を検討する計画である。
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Jichi Medical University, 01 Apr. 2017 - 31 Mar. 2022Management of Community Health Activities by Municipal Public Health Nurses (PHNs) Considering the Size of the populationThe purpose was to identify the management method of community health activities by MPHNs considering population size. We listed 78 activity approaches based on our previous studies. In 2020, we conducted a mailing or online questionnaire for MPHNs in 682 municipalities, extracted into stratified groups classified into five by population size (40% sampling rate). In 2021, we conducted a similar questionnaire for MPHNs from the remaining 60%. Data from 270 MPHNs in 2020 and 334 MPHNs in 2021 were analyzed. MPHNs' activity approaches differed depending on population size, especially between "less than 10,000 people" and "10,000 people or more". MPHNs with a population of "less than 10,000" had focused on the activity approaches to promoting and strengthening collaboration among MPHNs. MPHNs with a population of "10,000 or more" had focused on the activity approaches to developing effective and efficient health service and promoting independent health activities by residents.
- The Kanae Foundation, アジア・オセアニア交流研究助成金, Dec. 2018 - 2020, Principal investigatorThe Association between Social Capital and Obesity in Solomon IslandsCompetitive research funding
- 公益財団法人三菱UFJ 国際財団, 2017 - 2018, Principal investigatorソロモン諸島首都での栄養教室と生活習慣の変容についての研究