School of Health Sciences Faculty of Medicine University of the Ryukyus

DEPARTMENT OF GLOBAL HEALTH

achievementsResearch Achievements
Research Achievements

2025

１．Feasibility and effectiveness of vertical evacuation of patients with chronic respiratory disease for tsunamis:
A prospective study in a coastal area of Okinawa Prefecture, Japan
Sohkun Hoshino, Hiroshi Sekiguchi, Rie Takeuchi, Kazuya Miyagi, Yoko Sato, Juan Jose Castro, Kazuko Yamamoto, Jun Kobayashi
https://www.sciencedirect.com/science/article/pii/S2212420924009233?via%3Dihub
International Journal of Disaster Risk Reduction　105161, 116, 2025

2. A dynamic journey of comprehensive school health policy implementation in response to the COVID-19 pandemic in Lombok, Indonesia
Cut Warnaini, Abiyyu Didar Haq, Hamsu Kadriyan, Fumiko Shibuya, Jun Kobayashi
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-025-00690-z
Tropical Medicine and Health 53,25 2025

3. Comparative study on school-based mental health literacy in three Asian countries
Fumiko Shibuya, Masahide Usami, Marian Danille Santillan, Cut Warnaini, Ernesto Gregorio Jr, Naoko Satake, Crystal Amiel Estrada , Gunawan,
Norieta Balderrama , Japhet Fernandez de Leon, Joie Fe Ancheta, Hamsu Kadriyan, Fernando Garcia Jr., Jun Kobayashi 
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-025-00697-6
Tropical Medicine and Health 53, 86 2025

4. The impact of a health education program on cervical cancer screening uptake: A survey among primary school teachers
in Phnom Penh, Cambodia

Kanda M, Kim L, Haruyama R, Sann C, Fujita N, Chhit M, Hang S, Krouch R, Kobayashi J, Shibuya F, Asakura T, Osuga Y, Koum K,
Takeuchi R
https://doi.org/10.35772/ghmo.2024.01017
GHM Open  2025

5. Factors associated with scoliosis development in patients with congenital diaphragmatic hernia: A single-center retrospective study
Sohkun Hoshino, Tomohide Yoshida, Mayumi Tsukayama, Taro Naka, Hiroshi Sekiguchi, Jun Kobayashi, Koichi Nakanishi
https://www.pediatr-neonatol.com/article/S1875-9572(25)00045-2/fulltext
Pediatrics and Nenatology in press 2025

6. Effectiveness of Village Health Volunteers/Workers Working as Male-Female Pairs on Women’s Use of Postnatal Care Services
in Sepone District in Lao People’s Democratic Republic: A Protocol for a Quasi-experimental Cluster Study
Noudéhouénou Credo Adelphe Ahissou , Manami Uehara, Daisuke Nonaka, Inthanomchanh Vongphoumy, Tiengkham Pongvongsa,
Khamtoun Ounlienvongsack, Khampheng Phongluxa, Sengchanh Kounnavong, Jun Kobayashi
http://10.7759/cureus.82786
Cureus 17(4): e82786, 2025

7. Effect of trust in village health workers on the use of facility-based follow-up postnatal care services in two districts
in the Lao People’s Democratic Republic
Noudéhouénou Credo Adelphe Ahissou, Manami Uehara, Daisuke Nonaka, Inthanomchanh Vongphoumy,
Tiengkham Pongvongsa, Khamtoun Ounlienvongsack, Khampheng Phongluxa, Sengchanh Kounnavong, Jun Kobayashi
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-025-00730-8
Tropical Medicine and Health 53, 61. 2025

8. Pre- and post-COVID-19 pandemic identification of dengue hotspots and exploration of population
and environmental determinants
of dengue in Quezon City, Philippines
John Robert Carabeo Medina, Shin’ya Kawamura, Rie Takeuchi, Rolando V. Cruz, Johnedel Mendoza,
Paul Michael R. Hernandez, Fernando B. Garcia Jr., Ernesto R. Gregorio Jr. , Jun Kobayashi
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-025-00789-3
Tropical Medicine and Health 53, 109, 2025

9. Anaemia prevalence and risk factors among nonpregnant and pregnant women of reproductive age in Ghana:
an analysis of the Ghana demographic and health survey data
Gangtaba Gilbert Agulu, Noudéhouénou Crédo Adelphe Ahissou, Yasuhiko Kamiya, Frank Baiden & Mitsuaki Matsui
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-025-00792-8
Tropical Medicine and Health, 53, 118, 2025

10. Infectious Disease Awareness Among Future Health Professionals: A Comparison of Knowledge, Attitudes, and Practices
Between Nursing Students in Japan and Laos
Hansani Madushika Abeywickrama,Tiengkham Pongvongsa, Marcello Otake Sato, Rie Takeuchi, Yoichi Abiko, Tippayarat Yoonuan,
Jun Kobayashi, Megumi Sato
https://www.mdpi.com/2076-0817/14/9/920
Pathogen 14 (9), 920, 2025

11. Working in Pairs: Male–Female Village Health Volunteers Supporting Maternal Health and Community Engagement
in Remote and Ethnic Communities of Lao PDR — A Qualitative Study
Manami Uehara, Inthanomchanh Vongphoumy, Noudéhouénou Credo Adelphe Ahissou, Tiengkham Pongvongsa,
Khampheng Phongluxa, Jun Kobayashi
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-025-00817-2
Tropical Medicine and Health 53:141, 2025

12. Trends in School Feeding Policy Objectives Worldwide -Japan and multiple countries
Takeshi Akiyama, Sachi Tomokawa, Mika Kigawa, Fumiko Shibuya, Mami Hitachi, Yuko Teshima, Luna Shimabukuro,
Tomoko Hato, Aiko Inoue, Akira Kurishima, Eri Mochimaru, Juri Murata, Noriko Saito, Sachi Tensho,
Kenzo Takahashi , Jun Kobayashi
https://link.springer.com/article/10.1186/s41182-025-00818-1
Tropical Medicine and Health 53, 172, 2025

13. Mechanical Power to Predict Ventilator Liberation in Patients with a Tracheostomy
Toshiharu Nakama, Takehiro Umemura, Sohkun Hoshino, Masahiro Tamashiro, Kenichi Satoh, Hiroshi Sekiguchi
https://doi.org/10.1089/respcare.12237
Respiratory Care 70 (8), 2025

和文
1. COVID-19流行初期のリハビリテーション介入体制における取組みと一報告
大城徹也, 平田晃己, 嶺井陽, 新崎義人, 星野宗勳, 関口浩至, 宮城一也, 神里興太, 照屋孝二, 渕上竜也, 垣花学
国立大学リハビリテーション第46巻 p.18-21, 2025

2. オミクロン株流行前後のCOVID-19入院患者におけるリハビリテーション介入と経過の特徴
宮森 匠, 梅村 武寛, 大城 徹也, 垣花 学, 徳重 明央, 渕上 竜也, 星野 宗勳, 嶺井 陽, 宮城 一也, 山本 和子
https://doi.org/10.15032/jsrcr.23-42
日本呼吸ケア・リハビリテーション学会誌　34 巻 3 号 p. 246-252，2025

3. トランプドクトリンに対応する脱植民地主義からみたアジアのなかでの日本のグローバルヘルスの展望
小林潤
https://kokusairinshouigaku.jp/journal/files/ICM_vol9.pdf
国際臨床医学会雑誌 p4, 9, 2025

国際学会
Vulunerability of Pacific Islands in relation to Health and Positive Solution
Jun Kobayashi
Symposium　​​​​​：A call to action from Asia for the Promotion and for Future Co-Innovation of Planetary Health in Schools and Community
25thIUHPE World Conference on Health Promotion, Abu Dhabi, UAE 13-16 May 2025

Developing a Model for Child Marriage Prevention through a Multi-Sector Approach with Substantive Integration
Jun Kobayashi, Kethsana Kanyasan, Tiengkham Pongvongsa,　Ketmany Chanthakoummane, Inthanomchanh Vongphoumy,
Kaede Tabira, Chansavang Synouvong, Manisouk Bolihan, Phetsomphone Nansounthavong, Lammany OX, Miwa　Urasoe,
Khampheng Phongluxa
10th Adolecent Research Day, Vientiane, Lao PDR, 11 Nov 2025

Validity and Reliability of Tsunami Evacuation Planning Using Physical Function Assessment
Sohkun Hoshino, Hiroshi Sekiguchi, Jun Kobayashi
56th APACPH Conference 2025, Chaing Rai, Thailand, 5 Nov 2025

Factors Related to the Implement and Outcome of Child Marriage Prevention Program in Lao PDR: A Case Study (Poster Presentation)

Kaede Tabira, Ketmany Chanthakoummane, Kethsana KANYASAN, Khampheng ,Chansavang Synouvong, Manisouk Bolihan, 
Inthanomchanh Vongphoumy, Tiengkham Pongvongsa, Jun Kobayashi
56th APACPH Conference 2025, Chaing Rai, Thailand, 5 Nov 2025 

Implement and Outcome of Child Marriage Prevention Program in Lao PDR: A Case Study
Kaede Tabira, Ketmany Chanthakoummane,Kethsana Kanyasan, Tiengkham Pongvongsa,Inthanomchanh Vongphoumy,
Chansavang Synouvong, Manisouk Bolihan, Phetsomphone Nansounthavong, Lammany OX, Khampheng Phongluxa, Jun Kobayashi
10th Adolecent Research Day, Vientiane, Lao PDR, 11 Nov 2025

2024

1. Leadership of school principals for school health implementation among primary schools in Mataram, Indonesia: a qualitative study
Hirono Sasaki, Dian Puspita Sari, Cut Warnaini, Fahrin Ramadan Andiwijaya, Rie Takeuchi, Hamsu Kadriyan, Fumiko Shibuya, Jun Kobayashi
Tropical Medicine and Health 52:5 2024
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00568-y

2. Factors associated with undiagnosed hypertension among Tongan adults: a cross-sectional study
Seini Siahi Talanoafoou Fifita, Daisuke Nonaka, Mele Tilema Cama, Mele Inu Filise
Tropical Medicine and Health 52:4 2024
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00570-4

3. Knowledge, attitudes, and practices related to dengue among public school teachers in a Central Luzon Province in the Philippines: an analytic cross-sectional study
Authors:Ernesto R. Gregorio, Rie Takeuchi, Paul Michael R. Hernandez, John Robert Medina, Shin-ya Kawamura, Mikaela B. Salanguit, Marian Danille C. Santillan, Kimberly Mae S. Ramos, Gideon John Tuliao, Lyndon Morales, Maylin Palatino, Fumiko Shibuya, Jun Kobayashi
Tropical Medicine and Health 52, 25, 2024
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-024-00591-7

4. Evaluating the cross-cultural competence instrument for healthcare professionals (CCCHP) among nurses in Okinawa, Japan
Chieko Shirai, Daisuke Nonaka, Jun Kobayashi
BMC Health Services Research 24. 369, 2024
https://bmchealthservres.biomedcentral.com/articles/10.1186/s12913-024-10814-6

5. Multi-country case study on school health policy and its implementation in relation to COVID-19 control in Micronesia Small Islands Developing States
Fumiko Shibuya, Margaret Hattori-Uchima, Paul Dacanay, Florence Peter, Tarmau Terry Ngirmang, Rudelyn Dacanay, Rie Takeuchi, Calvin de los Reyes, Jun Kobayashi
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-024-00590-8
Tropical Medicine and Health 52, 27, 2024

６．An international interdisciplinary approach to developing video educational materials promoting mental health literacy among adolescents in the Philippines
Yasutaka Ojio, Takuma Shiozawa, Ernesto R. Gregorio Jr, Maria Cynthia Leynes, Paul Michael R. Hernandez, Crystal Amiel M. Estrada, Taruto Fuyama, Jun Kobayashi, Naoko Satake
http://doi.org/10.1111/eip.13545
Early Intervention in Psychiatry 1-8, 2024

2023

1. The process of overcoming conflicts among teachers in the implementation of comprehensive sexuality education at ordinary public senior high schools in Mataram City, Indonesia: a qualitative study
Fumiko Shibuya, Dian Puspita Sari, Cut Warnaini, Arina Windri Rivarti, Rie Takeuchi, Tracey Elizabeth Claire Jones-Konneh, Calvin de los Reyes, Hamsu Kadriyan, Jun Kobayashi
Tropical Medicine and Health 2023 51:7
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00495-y

2. Teachers’ conflicts in implementing comprehensive sexuality education: a qualitative systematic review and meta-synthesis
Fumiko Shibuya, Crystal Amiel Estrada, Dian Puspita Sari, Rie Takeuchi, Hirono Sasaki, Cut Warnaini, Saki Kawamitsu, Hamsu Kadriyan, Jun Kobayashi
Tropical Medicine and Health 2023 51:18
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00508-w

3. Content analysis of health-related subjects in the K12 school curricula of Japan, Indonesia, Philippines, Guam, Micronesia, Marshall Islands, Palau, and Fiji
Akihiro Nishio, Fumiko Shibuya, Calvin S. de los Reyes, Crystal Amiel M. Estrada, Ernesto R. Gregorio Jr, Dian Puspita Sari, Cut Warnaini, Hamsu Kadriyan, Maria Sandra M. Cruz, Margaret Hattori-Uchima, Paul Dacanay, Rudelyn Dacanay, Hillia Langrine Enos, Tarmau Terry Ngirmang, Mohamed Khalif, Saula Golea Volavola, Sachi Tomokawa, Mika Kigawa, Jun Kobayashi
Tropical Medicine and Health 2023 51:19
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00511-1

4. Impact of health systems reform on COVID-19 control in Sierra Leone: a case study
Tracey Elizabeth Claire Jones-Konneh, Angella Isata Kaikai, Ibrahim Borbor Bah, Daisuke Nonaka, Rei Takeuchi, Jun Kobayashi
Tropical Medicine and Health 2023 17;51(1):28
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00521-z

5. Spatial and temporal distribution of reported dengue cases and hot spot identification in Quezon City, Philippines, 2010–2017
John Robert C. Medina, Rie Takeuchi, Chris Erwin G. Mercado, Calvin S. de los Reyes, Rolando V. Cruz, Melvin D. R. Abrigo, Paul Michael R. Hernandez, Fernando B. Garcia Jr., Mika Salanguit, Ernesto R. Gregorio Jr., Shin’ya Kawamura, Khew Ee Hung, Masami Kaneko, Daisuke Nonaka, Richard J. Maude, Jun Kobayashi
Tropical Medicine and Health 2023 51:31
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00523-x

６．Health of migrants and other vulnerable populations across Asian countries: Build Forward Better beyond the COVID-19 pandemic
Azusa Iwamoto, Masami Fujita, Dang Quang Luong, Jongsoh Anh, Betty Ya-Wen Chiu, Jaewook Choi, Hung-Yi Chiou, Reiko Hayashi,Jun Kobayashi
Tropical Medicine and Health 2023, 51:46
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00543-7

7. Mothers Maintaining Stable Parenting after Participation in Parent Training: A Qualitative StudyMothers Maintaining Stable Parenting after Participation in Parent Training: A Qualitative Study Minako Suzuki, Kumiko Tsujino, Noriko Toyama, Manami Uehara, Jun Kobyashi
Japanese Journal of Health and Human Ecology 2023 89, 121-135
https://doi.org/10.3861/kenko.89.4_121

8. The role of community nurse in the implementation of health policy for the elderly in Thailand.
Sudo K, Noda S, Kobayashi J, Wongwatcharapaiboon P, Sakolwasan U, Takahashi K.
Global Health and Medicine. 2023
https://doi.org/10.35772/ghm.2023.01032

9. Trend of sociodemographic and economic inequalities in the use of maternal health services in Lao People’s Democratic Republic from 2006 to 2017: MICS data analysis.
Noudéhouénou Credo Adelphe Ahissou, Daisuke Nonaka, Rie Takeuchi, Calvin de los Reyes, Manami Uehara, Phongluxa Khampheng, Sengchanh Kounnavong, Jun Kobayashi
Tropical Medicine and Health 2023, 51
https://tropmedhealth.biomedcentral.com/articles/10.1186/s41182-023-00548-2

Intenational Congress (国際学会）
1．Advantages and challenges of Japanese school health system for mental health
Jun Kobayashi
Symposium theme: Current situation for child and adolescent mental health in Japan, 
The 11th Congress of The Asian Society for Child and Adolescent Psychiatry and Allied Profession (ASCAPAP) 26-28 May 2023 Kyoto, Japan

2. Impact of the promotion of sports in schools
Symposium: Combating NCDs through health promotion strategies
Jun Kobayashi
54^th Asia Pacific Academic Consortium for Public Health, 30 Oct – 1 Nov 2023 Kuching, Sarawak, Malaysia

3. Factors Associated with Undiagnosed Hypertension Amongst Tongan Adults: A Cross-Sectional Study.
Seini Siahi Talanoafoou Fifita. (Oral Presentation: 2-105)
54^th Asia Pacific Academic Consortium for Public Health, 30^th Oct-1Nov 2023, Kuching, Sarawak, Malayia. Oral presentation: Great Hall: Nov 1^st Presenter #5.

4. Multi-country case studies on school health implementation for the post-COVID-19 era in Micronesia Region, the Pacific Small Islands Developing States: The Federated States of Micronesia, Republic of the Marshall Islands, and the Republic of Palau (poster ID: APACPH-23-176). 
Fumiko Shibuya, Paul Dacanay, Florence Peter, Tarmau Terry Ngirmang, Rudelyn Dacanay, Calvin de los Reyes, Rie Takeuchi, and Jun Kobayashi.
54^th Asia Pacific Academic Consortium for Public Health, 30^th Oct-1Nov 2023, Kuching, Sarawak, Malayia.


5. Prevalence of Asymptomatic Plasmodium Infections in the Greater Mekong Subregion: A Systematic Review (poster ID: APACPH-23-068) 
Taofic Bouwe, Daisuke Nonaka, Moritoshi Iwagami , Noudéhouénou Crédo Adelphe Ahissou, Sae Kawamoto.
54^th Asia Pacific Academic Consortium for Public Health, 30^th Oct-1Nov 2023, Kuching, Sarawak, Malayia.

Domestic Congress (国内学会）
1. Introduction of existing network: lessons learned from experiences of the consortium for global school health research 
Jun Kobayashi
Symposium: Migration and health across Asian countries : build forward better beyond COVID-19 pandemic Chairperson
日本国際保健医療学会第41回西日本地方会　2023年3月4日　長崎
２．Teachers’ Conflicts in Implementing Comprehensive Sexuality Education: A Qualitative Systematic Review and Meta-Synthesis
渋谷 文子, Crystal Amiel Estrada, Dian Puspita Sari, 竹内 理恵, 佐々木 緩乃, Cut Warnaini, 川満 早, Hamsu Kadriyan, 小林 潤
日本国際保健医療学会第41回西日本地方会　2023年3月4日　長崎
３．Association of infant and young child feeding with stunting and wasting among children aged 6-23 months in Lao People’s Democratic and Republic: A crosssectional study
中今 美音, 野中 大輔, 竹内 理恵, 小林 潤
日本国際保健医療学会第41回西日本地方会　2023年3月4日　長崎
４．Leadership and school health implementation among primary school principals in Mataram, Indonesia: A qualitative study
佐々木 緩乃, Dian Puspita Sari, Cut Warnaini, Fahrin Andiwijaya, 竹内 理恵, Hamsu Kadriyan, 小林 潤
日本国際保健医療学会第41回西日本地方会　2023年3月4日　長崎

2022

1 Status of School Health Programs in Asia: National Policy and Implementation
Rie Ogasawara,Hiroshi Yamanaka,Jun Kobayashi,Sachi Tomokawa,Elli Sugita,Takanori Hirano,Mika Kigawa,Akihiro Nishio,Takeshi Akiyama,Eun Woo Nam,Ernesto R. Gregorio Jr.,Crystal Amiel M. Estrada,Pimpimon Thongthien,Kethsana Kanyasan,Bhimsen Devkota,Jeudyla Hun,Yinghua Ma,Beverley Anne Yamamoto
Pediatrics International　64, e15146, 2022
https://doi.org/10.1111/ped.15146

2. Lessons learned from online qulitative data collection in an international collaborative study during the COVID-19 pandemic
Teacher's effort to cope with conflict in implementing comprehensive sexuality education at secondary schools in Mataram city, Indonesia
Fumuko Shibuya, Dian Puspita Sari, Cut Warnaini, Arina Widdri Rivarti, Rie Takeuchi, Hamsu Kadriyan, Calvin de los Reyes, Jun Kobayashi
Advances in Health Siences Research, 46, 279-287, 2022
https://doi.org/10.2991/ahsr.k.220206.052

3. Community Resilience in the Time of the COVID-19 Pandemic: A Qualitative Study on Local Perspectives in the Island of Lombok
Fahrin Ramadan Andiwijaya, Hamsu Kadriyan, Putu Suwita Sari, Jun Kobayashi, Suryaning Rasyidah, Lalu Hamzi Fikri
Advances in Health Siences Research, 46, 380-382, 2022
https://www.atlantis-press.com/proceedings/orlhn-21/125970615

4. Resilience of community in the early phase of the COVID-19 pandemic in the Philippines
Crystal Amiel M Estrada, Ernesto R. Gregorio Jr., Jun Kobayashi
International Journal of Okinawan Studies, 3.2: 133-145, 2022
https://riis.skr.u-ryukyu.ac.jp/publication/ojis/ojis_3_2

5．Association Between Socio-Economic Status and the Presence of Soap at Handwashing Facilities in Lao People's Democratic Republic: A Cross-Sectional Study
Yuko Muramatsu-Noguchi, Daisuke Nonaka, Sengchanh Kounnavong, Jun Kobayashi
Asia Pacific Journal of Public Health, 34(4), 423-426, 2022
https://journals.sagepub.com/doi/10.1177/10105395211072478

6. Can Homecare Chronic Respiratory Disease Patients with Home Oxygen Treatment (HOT) in Southern Okinawa, Japan Be Evacuated Ahead of the Next Anticipated Tsunami?
Hiroshi Sekiguchi,　Rie Takeuchi,　Yoko Sato,　Tsuyoshi Matsumoto, Jun Kobayashi, Takehiro Umemura
International Journal of Environmental Research and Public Heatlh, 19(9), 2022
https://www.mdpi.com/1660-4601/19/9/5647/htm

7. Detection and persistence of environmental DNA (eDNA) of the different developmental stages of a vector mosquito, Culex pipiens pallens
Masayuki K Sakata, Megumi Sato, Marcello Otake Sato, Tomoe Watanabe, Honami Mitsuishi, Tomoyuki Hikitsuchi, Jun Kobayashi, Toshifumi Minamoto
PLoS One 10;17(8):e0272653, 2022.
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0272653

2021

１．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 Study.