Updated on 2026/05/21

写真a

 
Danya Hitomi
 
Affiliation
Faculty of Medical Care and Health Sciences, Department of Nursing, Fundamentals of Nursing, Assistant Professor
Graduate School of Nursing
Title
Assistant Professor
Profile

国立がん研究センター認定がん専門相談員

External link

Research Interests

  • Health communication

  • ヘルスリテラシー

  • Numeracy

  • Shared decision making

  • ピクトグラフ

Research Areas

  • Life Science / Medical management and medical sociology  / 看護情報学

  • Life Science / Fundamental of nursing

Education

  • St. Luke's International University

    - 2024.9

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  • St. Luke's International University   St. Luke's International University

    - 2017.3

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Research History

  • National Cancer Center

    2024.2

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  • Keio University

    2022.9 - 2025.3

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  • 照林社   編集部   編集アドバイザー

    2022.4 - 2025.3

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  • Juntendo University

    2019.5 - 2026.3

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Papers

  • Online training for Japanese healthcare professionals in the development and use of patient decision aids to facilitate shared decision-making: An acceptability study Reviewed

    Wakako Osaka, Yumi Aoki, Yuki Yonekura, Hitomi Danya, Kazuhiro Nakayama

    PEC Innovation   7   100425 - 100425   2025.12

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

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  • Decision-making styles of patients and general population in health care: A scoping review. Reviewed International journal

    Hitomi Danya, Kazuhiro Nakayama

    Nursing forum   57 ( 6 )   1012 - 1025   2022.11

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    OBJECTIVE: Decision-making styles form the backbone of effective decision-making and show promise as an important construct that warrants further attention. We investigated what is known about decision-making styles among patients and the general population in a health care setting. METHODS: We used Arksey and O'Malley's framework and searched PubMed and CINAHL databases using relevant combinations of keywords and subject headings. Articles were limited to those published in English up to February 2020. RESULTS: Sixteen articles met the inclusion criteria. We found that decision-making styles were described as role preferences or personality, psychological, and cognitive factors that influence decision-making. In the identified studies, the evidence was scarce regarding decision-making styles as the foundation for effective decision-making. Moreover, most studies were vague in the description of decision-making styles, offered little explanation of the concept, and varied substantially in the terminology, numbers, and types of decision-making styles and measurement methods. CONCLUSIONS: Decision-making styles, as a dynamic process, have received little attention in health care and are rarely addressed in health communication research or investigations of decision-making support. Other frameworks that are not directly related to decision-making styles were used in most analyzed studies. PRACTICE IMPLICATIONS: Decision-making styles in health care should be reinterpreted as a dynamic process that can be developed or changed.

    DOI: 10.1111/nuf.12775

    PubMed

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  • Associations between health literacy and information-evaluation and decision-making skills in Japanese adults. Reviewed International journal

    Kazuhiro Nakayama, Yuki Yonekura, Hitomi Danya, Kanako Hagiwara

    BMC public health   22 ( 1 )   1473 - 1473   2022.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    BACKGROUND: Health literacy among Japanese is often low, making it difficult for them to evaluate health information and make informed decisions. However, the health literacy scales applied measure the perceived difficulty of health-related tasks; they do not directly assess the specific skills needed to perform the tasks: the skills to judge the reliability of diverse information using evaluation criteria and implement rational decision-making. Therefore, the study objectives were to investigate the following issues using a nationwide survey in Japan. (1) When obtaining information, to what extent do people apply criteria for evaluating information to confirm its reliability; when making decisions, to what extent do they seek out available options and compare pros and cons based on their own values? (2) How strongly are such skills associated with health literacy and demographic characteristics? (3) What opportunities are available to learn these skills? METHODS: We conducted an online questionnaire survey using a Japanese Internet research company; 3,914 valid responses were received. The measures comprised health literacy (European Health Literacy Survey Questionnaire), five items on information evaluation, four items on decision-making, and items on the availability and location of learning opportunities. We calculated Pearson correlations to explore the association of health literacy with information-evaluation and decision-making skills. Multivariate analyses were also conducted using these factors as dependent variables. RESULTS: Fewer than half (30%-50%) of respondents reported always or often evaluating information and engaging in decision-making. Health literacy was significantly and positively correlated with the specific skills of information evaluation and decision-making (r = .26 and .30, respectively) as were multivariate analyses (beta = .15 and .22, respectively). Over 40% of respondents had never learned those skills. The most common resources for learning the skills were the Internet and television; less-used resources were schools and workplaces. CONCLUSIONS: Both information-evaluation and decision-making skills were associated with health literacy. However, these skills are not sufficiently widespread in Japan because there are few opportunities to acquire them. More research is needed to raise awareness of the importance of such skills for improving health literacy and providing learning opportunities.

    DOI: 10.1186/s12889-022-13892-5

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  • COVID-19 Preventive Behaviors and Health Literacy, Information Evaluation, and Decision-making Skills in Japanese Adults: Cross-sectional Survey Study. Reviewed International journal

    Kazuhiro Nakayama, Yuki Yonekura, Hitomi Danya, Kanako Hagiwara

    JMIR formative research   6 ( 1 )   e34966   2022.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    BACKGROUND: Health literacy is important for the prevention of COVID-19 transmission. Research in Japan shows that health literacy is related to skills in evaluating information and decision-making (skills that are not necessarily limited to information about health). Such basic skills are important, particularly when individuals encounter new health issues for which there is insufficient evidence. OBJECTIVE: We aimed to determine the extent to which COVID-19 preventive behaviors were associated with health literacy and skills in evaluating information and making decisions. METHODS: A web-based questionnaire survey was conducted using a Japanese internet research company. The measures comprised 8 items on COVID-19 preventive behaviors, health literacy items (European Health Literacy Survey Questionnaire), 5 items on information evaluation, and 4 items on decision-making process. Pearson correlations between these variables were calculated. Multivariable analyses were also conducted using the COVID-19 preventive behavior score as a dependent variable. RESULTS: A total of 3914 valid responses were received.COVID-19 preventive behaviors were significantly correlated with health literacy (r=0.23), information evaluation (r=0.24), and decision-making process (r=0.30). Standardized regression coefficients (health literacy: β=.11; information evaluation: β=.13; decision-making: β=.18) showed that decision-making process contributed the most. CONCLUSIONS: Although comprehensive health literacy is necessary for COVID-19 preventive behaviors, the skills to evaluate a wide range of information and to make appropriate decisions are no less important. Opportunities for people to acquire these skills should be available at all times.

    DOI: 10.2196/34966

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  • Effects of graphic presentation on understanding medical risks and benefits among Japanese adults Reviewed

    Hitomi Danya, Yuki Yonekura, Kazuhiro Nakayama

    Cogent Medicine   8 ( 1 )   2021.1

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Informa {UK} Limited  

    DOI: 10.1080/2331205x.2021.1907894

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Misc.

  • 患者の意思決定を中立の立場で導く─オタワ意思決定ガイドを用いた支援方法の実際─

    第45回日本看護科学学会学術集会   2025.12

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  • 厚労科研(がん対策推進総合研究事業) 分担研究報告書: がん専門相談員向けの研修「国立がん研究センター基礎研修(3)」と「外部組織実施研修」の 研修効果の定量的評価に関する研究

    八巻知香子, 小郷祐子, 髙橋朋子, 櫻井雅代, 齋藤弓子, 檀谷ひとみ

    2025.5

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  • 健康・医療の情報源の利用経験とヘルスリテラシーの関連

    中山和弘, 檀谷ひとみ

    日本健康学会誌   83 ( Appendix )   2017

  • 日本人のニュメラシーと医療のリスク情報の理解度及びピクトグラフの効果

    檀谷ひとみ, 中山和弘

    日本健康教育学会誌   25   2017

  • 医療リスク情報の理解度とニュメラシー及びヘルスリテラシーとの関連

    檀谷ひとみ, 中山和弘

    日本公衆衛生学会総会抄録集   76th   2017

  • 健康や医療に関する情報源としての各種メディアや専門職の利用意向と情報の信頼性の確認の実施状況

    中山和弘, 檀谷ひとみ

    日本健康教育学会誌   25   2017

  • 看護師の死生観の育み

    檀谷ひとみ

    聖路加看護学会誌   12 ( 3 )   2008

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Presentations

  • Development of the Japanese Version of the International Patient Decision Aids Instrument (IPDASi ver. 4.0): Translation and Linguistic Validation

    Osaka Wakako, Yonekura Yuki, Arimori Naoko, Aoki Yumi, Danya Hitomi, Fujita Miho, Hagiwara Kanako, Nakayama Kazuhiro

    16th International Conference on Communication in Healthcare  2018.9 

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  • Health numeracy and the effect of pictographs on understanding treatment risks and benefits among Japanese adults

    Hitomi Danya, Kazuhiro Nakayama

    16th International Conference on Communication in Healthcare  2019.7 

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  • Factors affecting the understanding of pictographs showing risk information among Japanese adults

    Hitomi Danya,Yuki Yonekuram, Kazuhiro Nakayama

    10th International Shared Decision Making Conference 

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  • Decision making styles of patients and citizens in health communication: scoping review

    Hitomi Danya, Kazuhiro Nakayama

    18th International Conference on Communication in Healthcare  2020.9 

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  • Design and acceptability of an online training program on the development and implementation of decision aids for Japanese healthcare providers

    Wakako Osaka, Yumi Aoki, Yuki Yonekura, Hitomi Danya, Kazuhiro Nakayama

    12th International Shared Decision Making Conference  2024.7 

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  • Japanese patients’ experience and needs regarding information sharing for pharmacotherapy decision-making

    Hitomi Danya, Yuki Yonekura, Miho Fujita, Kazuhiro Nakayama

    International Conference on Communication in Healthcare 2024  2024.9 

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Works

Research Projects

  • Development of an Educational Program on Evidence-based Patient Decision Aids to Support Shared Decision- Making for Healthcare Providers in Japan.

    Grant number:16H07221  2016.8 - 2018.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Research Activity Start-up

    OSAKA WAKAKO, NAKAYAMA Kazuhiro, YONEKURA Yuki, ARIMORI Naoko, AOKI Yumi, DANYA Hitomi, FUJITA Miho, HAGIWARA Kanako

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    Grant amount:\2860000 ( Direct Cost: \2200000 、 Indirect Cost:\660000 )

    People are faced with difficult decisions have single “best”choice in healthcare. These types of decisions are considered to be “preference-sensitive”because there is insufficient evidence about outcomes or there is a need to trade off known benefits and harms. Patient decision aids are evidence based tools that can be supportive in shared decision -making. This study aimed to develop an educational program on evidence-based patient decision aids to support shared decision- making for healthcare providers in Japan. The educational program was developed based on a literature review and evaluation of six available patient decision aids for the Japanese.

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  • Developing a decision aid using the life course approach for patients that are confronted with uncertainty in healthcare

    Grant number:15K15811  2015.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    NAKAYAMA Kazuhiro, ETOH Ayako, OSAKA Wakako, NESHI Mayuko, HAGIWARA Kanako, KITA Naoko, YONEKURA Yuki, ARIMORI Naoko, AOKI Yumi, DANYA Hitomi, FUJITA Miho

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    Grant amount:\3510000 ( Direct Cost: \2700000 、 Indirect Cost:\810000 )

    This study aimed to develop a decision support tool (decision aid) to assist with decisions influencing the life course of a patient and their family who may be confronted with uncertainty in healthcare. (1) The development of a decision aid on hormone substitution therapy for menopausal women was undertaken and the content appropriateness was evaluated. (2) A Japanese version of the International Patient Decision Aid Standards Instrument (IPDASi), an international standard for maintaining and developing decision aid quality, was developed. (3) We investigated the relationship between health behaviors and decision making in young women from the perspective of the life course approach. This approach considers how future life prospects influence present health-related behaviors.

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Academic Activities

  • 日本看護科学学会、和文誌専任査読委員

    Role(s): Peer review

    2025.10

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    Type:Peer review 

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  • 横浜市立脳卒中・神経脊椎センター 院内研究講師

    Role(s): Planning/Implementing academic research

    2019.10 - 2022.2

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    Type:Scientific advice/Review 

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