研究者詳細 - 原田　奈穂子

論文 - 原田　奈穂子

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Early Outcomes of Changes to Collection of Suicide Data in Japan 査読

Nahoko Harada, Masahide Koda, Shuhei Nomura

JAMA Network Open 6 ( 12 ) e2347543 - e2347543 2023年12月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：American Medical Association (AMA)

This cross-sectional study examines implications of updated categorizations for suicide data collection in Japan.

DOI： 10.1001/jamanetworkopen.2023.47543

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災害時における多職種連携のポイント～産業保健の視座に基づくメンタルヘルス支援の事例から～招待

産業医学ジャーナル 48 ( 4 ) 383 - 387 2025年7月

Determinants of Infection Prevention and Control Practices in Japanese Nursing Homes: A Scoping Review 査読

Kanako Fujimoto, Momoe Utsumi, Ayako Suzuki, Nahoko Harada

Nursing and Health Sciences 27 ( 2 ) 2025年5月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Wiley

ABSTRACT

Understanding the determinants influencing healthcare workers' (HCWs) behaviors is essential for promoting infection prevention and control (IPC) in Japanese nursing homes (NHs). This scoping review aimed to map IPC determinants in Japanese NHs using two behavior change frameworks and to identify research gaps. We conducted a scoping review using three databases, following the Joanna Briggs Institute methodology. Reviewers independently screened reports, assessed eligibility, and extracted IPC behavior determinants. Extracted data were mapped and thematically analyzed using the Theoretical Domains Framework (TDF) and the Capability, Opportunity, and Motivation‐Behavior model. Of 1778 records identified, 22 reports published between 2006 and 2021 met the inclusion criteria. We codified 70 determinants and generated 15 themes. Most reports addressed barriers related to limited IPC knowledge, skills, resources, and systems. Facilitators were mainly codified within motivation‐related TDF domains, where an underexplored research gap was identified. Further research focusing on IPC motivation and a deeper understanding of NH contexts is important for developing context‐appropriate IPC promotion strategies. A participatory approach involving NH residents and HCWs may be helpful in future research.

DOI： 10.1111/nhs.70125

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The Multiple Determinants of Infection Prevention and Control Practices in Nursing Homes: A Scoping Review. 査読国際誌

Kanako Fujimoto, Momoe Utsumi, Toshiyuki Swa, Aoi Furuya, Ayumi Ikuji, Ayami Nakanishi, Nahoko Harada

Journal of the American Medical Directors Association 105593 - 105593 2025年4月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）

OBJECTIVES: To map the barriers and facilitators influencing infection prevention and control (IPC) practices in nursing homes (NHs) from a behavior change perspective and to identify research gaps. DESIGN: Scoping review using the Joanna Briggs Institute methodology. SETTING AND PARTICIPANTS: NHs for older adults and health care workers in NHs. METHODS: We conducted database searches in March 2022 and updated them in November 2024, including additional sources from citation tracking and reference list checks. We analyzed barriers and facilitators using the Theoretical Domains Framework (TDF) and the Capability, Opportunity, and Motivation-Behavior (COM-B) model. RESULTS: Of 1591 identified records, 54 reports published between 2003 and 2024 met our inclusion criteria. The analysis identified 101 determinants (25 in Capability, 46 in Opportunity, and 30 in Motivation within the COM-B model) categorized into 36 categories and 16 themes as barriers and facilitators. The most frequently mentioned barriers were related to the "Environmental context and resources" domain of the TDF. Relatively few reports addressed the determinants of the TDF domain classified within the Motivation area of the COM-B model. Although many facilitators were identified in this area, including beliefs, intentions, and goals, they were coded based on limited descriptions. CONCLUSIONS AND IMPLICATIONS: This review provides a detailed mapping of the barriers and facilitators to IPC in NHs based on existing literature. It demonstrates the complexity of sustaining IPC practices, influenced by multiple determinants. Although Motivation may impact IPC adherence, its determinants remain insufficiently studied, indicating a research gap. Further research is needed to explore these determinants and understand how Motivation interacts with other factors in IPC implementation.

DOI： 10.1016/j.jamda.2025.105593

PubMed

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What is Disaster Readiness Among Health Care Professionals? A Systematic Integrative Review Study 査読

Karin Hugelius, Nahoko Harada

Disaster Medicine and Public Health Preparedness 19 2025年3月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Cambridge University Press (CUP)

Abstract

Objective

This study aimed to explore the meaning of disaster readiness among health care professionals.

Methods

A systematic, integrative literature review was conducted on PubMed, Chinal plus with full text, Web of Science, PsychInfo, and Scopus. Quality appraisal was conducted using the CASP checklists.

Results

A total of 22 scientific articles were included. Disaster readiness, from the perspectives of health care professionals, was defined as having sufficient skills and confidence to respond, having access to the necessary equipment, being able to adapt to the changing environment and organizational structure, and being willing to serve in a disaster.

Conclusions

Disaster readiness is more than being prepared. Disaster readiness means moving beyond technical skills and knowledges to include personal mental preparedness and a willingness to confront the risks and take necessary precautions to stay safe and resilient in the efforts to help others. To enhance disaster readiness, preparations should include introducing elements that touch the soul, providing moral and personal motivation to serve in a disaster, and initiating thoughts on what such deployments or situations could be like for those affected as well as for health care professionals. How to enhance such trainings and develop effective training methods must be a focus for future studies.

添付ファイル： what-is-disaster-readiness-among-health-care-professionals-a-systematic-integrative-review-study.pdf

DOI： 10.1017/dmp.2025.58

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Medical perspective on the systemic challenges involving indirect disaster-related deaths in Japan. 査読国際誌

Motohiro Tsuboi, Hiroyuki Sasaki, Hyejeong Park, Masaharu Tsubokura, Toyoaki Sawano, Nahoko Harada, Fumiyasu Zaima, Akihiro Uto, Tadashi Okamoto, Toshihiko Watanabe, Manabu Hibiya, Shinsaku Ueda, Noboru Sakamoto, Koichi Yasaka, Shigemasa Taguchi, Kazuya Kiyota, Shinichi Egawa

Scientific reports 15 ( 1 ) 5225 - 5225 2025年2月

記述言語：英語掲載種別：研究論文（学術雑誌）

Disaster-related deaths can be classified as direct and indirect disaster-related deaths that are becoming more predominant in Japan. To reduce indirect disaster-related deaths, accurate statistics based on medical documentation are essential. However, the definition and reporting of such deaths in Japan present systemic challenges. These deaths are certified and recorded by municipalities at the request of bereaved families seeking condolence grants. This cross-sectional study assessed 755 certified indirect disaster-related deaths after the 2011 Great East Japan Earthquake in the Miyagi Prefecture, Japan, to determine whether medical documents mentioned disaster relevance. Of the 755 cases, 74 (9.8%) death certificates and 145 (19.2%) medical documents described the relevance of disasters. Relevance mentioned only in the self-reported documentation from bereaved families was 536 (71.0%). The median [interquartile range] time from the disaster onset to disaster-related deaths was 21 [7-52] days. The mean age was 79.7-years-old, and 346 (46.7%) of the victims were female. The predominant etiologies of these deaths included circulatory (32.7%) and respiratory (27.7%) diseases. The time periods of the deaths varied among the municipalities, suggesting a lack of consensus among the review committees. Establishing a medical and social consensus for indirect disaster-related deaths and recording them on death certificates is crucial for accurate disaster death data and social resilience.

DOI： 10.1038/s41598-025-89349-7

PubMed

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Changes in Healthcare Utilization in Japan in the Aftermath of the COVID-19 Pandemic: A Time Series Analysis of Japanese National Data Through November 2023 査読

Yuta Tanoue, Alton Cao, Masahide Koda, Nahoko Harada, Cyrus Ghaznavi, Shuhei Nomura

Healthcare 2024年11月

Association between Disaster Knowledge Level and the First Step of Stockpiling Food for a Disaster 査読

Moeka HARADA, Nobuyo TSUBOYAMA-KASAOKA, Jun OKA, Rie KOBAYASHI

Journal of Nutritional Science and Vitaminology 70 ( 5 ) 422 - 429 2024年8月

Comparing health care outcomes before and after employing nurse practitioners in cardiovascular hospitals in Japan: A retrospective chart review 査読

Miho Suzuki, Natsuko Sekiguchi, Masato Saitoh, Masahide Koda, Nahoko Harada, Kazuya Honda, Tomoko Araki, Takemi Kudo, Takako Watanabe

Journal of the American Association of Nurse Practitioners 2024年7月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Ovid Technologies (Wolters Kluwer Health)

ABSTRACT

Background:

There are approximately 872 certified nurse practitioners (NPs) in Japan as of April 2024. However, research on the results of their specific activities is still scarce.

Purpose:

This study aimed to compare health care outcomes before (i.e., 2019) and after (i.e., 2021) employing NPs in cardiovascular hospitals in Japan.

Methodology:

We conducted a retrospective chart review and analyzed 114 patients who underwent cardiac surgery in Hospital A and 381 patients who received pacemaker implantation/replacement in Hospital B. Hospital A hired one NP for cardiac surgery service, and Hospital B hired one NP for pacemaker device service. The NPs assisted in the surgical procedures and provided postsurgical management.

Results:

In Hospital A, the median length of hospitalization and intubation were shorter in 2021 than in 2019 (p = .02 and .01, respectively). In Hospital B, medical fee reimbursement was lower in 2021 (p < .001) than in 2019, and the median procedure duration was shorter (p = .01), which remained statistically significant after controlling for age, comorbidities, and device types. Some outcomes improved following the employment of NPs, whereas others remained unchanged.

Conclusions:

Nurse practitioners managed surgical patients well and contributed to the quality care of cardiovascular medicine.

Implications:

The employment of NPs in Japan is encouraged because even a single NP can have a positive, although not large, impact on patients and organizations.

DOI： 10.1097/jxx.0000000000001046

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The importance of methodological vigilance: Reevaluating suicide trends in Japan post‐2022 査読

Masahide Koda, Nahoko Harada, Shuhei Nomura

Psychiatry and Clinical Neurosciences Reports 3 ( 2 ) 2024年6月

Scoping review of exploring the roles of primary care providers to increase disaster preparedness of vulnerable populations 査読

Perihan Şimşek, Mayumi Kako, Nahoko Harada, Jonathan Abraham, Ismail Tayfur

Progress in Disaster Science 100339 - 100339 2024年6月

アトピー性皮膚炎のある成人が経験するかゆみに関する記述研究査読

平見有希, 藤本要子, 香田将英, 原田奈穂子

統合科学 ( 4 ) 9 - 18 2024年3月

Changes in Place of Death Among Patients With Dementia During the COVID-19 Pandemic in Japan: A Time-series Analysis 査読

Nahoko Harada, Masahide Koda, Akifumi Eguchi, Masahiro Hashizume, Motoi Suzuki, Shuhei Nomura

Journal of Epidemiology 2024年2月

Excess suicides in Japan: a three-year post-pandemic assessment of gender and age disparities 査読

Haruka Sakamoto, Masahide Koda, Akifumi Eguchi, Kaori Endo, Takahiro Arai, Nahoko Harada, Takashi Nishio, Shuhei Nomura

Psychiatry Research 115806 - 115806 2024年2月

Nurse Practitioner Placement in A Nursing Home in Japan 査読

Masahide Koda, Nahoka Harada, Naoko Sato, Tomoko Araki, Kazuya Honda, Takemi Kudo, Takao Watanabe, Miho Suzuki

The Journal for Nurse Practitioners 20 ( 1 ) 104845 - 104845 2024年1月

「災害時の支援者支援」の視点から見るコロナ禍からの組織の復興—看護管理者が支える組織の安定感招待

原田奈穂子

看護管理 33 ( 4 ) 278 - 282 2023年4月

心理社会的支援を通してみる災禍の自殺対策招待

原田奈穂子

自殺予防と危機介入 43 ( 2 ) 12 - 17 2023年

診療看護師(NP)の所属による業務内容、職務満足、給与の相違

鈴木美穂, 原田奈穂子, 香田将英, 本田和也, 荒木とも子, 工藤剛実, 齋藤真人, 渡邊隆夫

日本NP学会誌 6 ( Suppl. ) 136 - 136 2022年11月

Establishing best practice for the implementation of evacuation centres for vulnerable populations: A comparative analysis of the Australian and Japanese experience 査読

Mayumi Kako, Paul Arbon, Benjamin Ryan, Nahoko Harada

International Journal of Disaster Risk Reduction 79 103165 - 103165 2022年9月

Spatial statistical analysis of regional disparities in suicide among policy units in Japan: Using the Bayesian hierarchical model 査読

Masahide Koda, Julia Robinson, Katsunori Kondo, Satoru Takahashi, Toshiyuki Ojima, Tomohiro Shinozaki, Manabu Ichikawa, Nahoko Harada, Yasushi Ishida

PLOS Global Public Health 2 ( 8 ) e0000271 - e0000271 2022年8月

掲載種別：研究論文（学術雑誌）出版者・発行元：Public Library of Science (PLoS)

Suicide prevention is a crucial policy issue in Japan to be addressed nationally. Nevertheless, if there are regional differences in suicide, even in adjacent sub-regions, measures may need to be taken at the sub-regional level. Previous studies have not compared regional differences in suicide based on the size of policy units, such as prefectures, secondary medical areas, and municipalities. This study used the number of suicides from open data for 10 years from 2009 to 2018 to obtain shrinkage estimates of the standardized mortality ratio (SMR) using the Bayesian hierarchical model. We visualized and compared the regional disparities in suicide for each policy unit. For each gender and policy unit, adjacent regions had similar clusters of SMRs and positive spatial autocorrelation of global Moran’s I (p < 0.001 for each). Comparisons between each policy unit showed that even if the SMR was low for the prefectural units, there were regions with high SMRs in municipalities and secondary medical areas, and vice versa. It was found that assessing suicide solely on a prefecture-by-prefecture basis may overlook regional disparities in suicide. This research emphasizes the need to establish suicide indicators at the secondary medical or municipal level and execute individual suicide prevention interventions in neighboring communities. Prefectures can also play a role in developing collaborative cooperation between neighboring regions by acting as actors.

DOI： 10.1371/journal.pgph.0000271

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