The Tokyo Foundation for Policy Research


The Tokyo Foundation for Policy Research


立森 久照/Hisateru Tachimori


Hisateru Tachimori

Last updated : April 16, 2024

Project Professor, Department of Health Policy and Management, Keio University School of Medicine

Areas of Expertise
  • Epidemiology
  • biostatistics
  • mental health
  • policy evaluation

My specialty is epidemiology and biostatistics. I was in charge of an exhaustive survey of the use of psychiatric services in Japan, providing statistical information necessary for policy-making and using the survey data to evaluate policy in mental healthcare in Japan for more than 10 years at the National Institute of Mental Health, National Center of Neurology and Psychiatry (NCNP). As a visiting professor at the Research Center for Medical and Health Data Science, Institute of Statistical Mathematics, I have trained advanced experts in biostatistics and human resources through statistical education. I have also been working to improve the quality of research in clinical trials of psychiatric and neurological disorders and epidemiological studies of non-communicable diseases through the application of statistical causal inference methods at NCNP, National Center for Global Health and Medicine, and the University of Tokyo. Through these activities, I hope to utilize data in contributing to the realization of a well-being society for everyone.

Research Program
Developing a well-being-informed education package
Development of Well-Being Indicators and Policy Packages(-2024)

Select Publications

Evans-Lacko, S., Tachimori, H., Kovess-Masfety, V., Chatterji, C., & Thornicroft, G. (2018). Service use. In: Scott, K. M., de Jonge, P., Stein, D. J., & Kessler, R. C. (Eds.). Mental Disorders Around the World: Facts and Figures from the World Mental Health Surveys. Cambridge University Press: pp. 314-323.
Wang, C., Li, Y., Tsuboshita, Y., Sakurai, T., Goto, T., Yamaguchi, H., Yamashita, Y., Sekiguchi, A., & Tachimori, H. for the Alzheimer’s Disease Neuroimaging Initiative. (2022). A high-generalizability machine learning framework for predicting the progression of Alzheimer's disease using limited data. NPJ Digit Med, 5(1), 43. doi:10.1038/s41746-022-00577-x.
Tanboon, J., Inoue, M., Saito, Y., Tachimori, H., Hayashi, S., Noguchi, S., Okiyama, N., Fujimoto, M., & Nishino, I. (2022). Dermatomyositis: Muscle Pathology According to Antibody Subtypes. Neurology, 98(7), e739-e749. doi:10.1212/WNL.0000000000013176.
Sugimoto, A., Tachimori, H., Hirata, Y., Sakamoto, K., Ota, N., Shiraishi, S., Tsuchida, M., & Motomura, N. (2022). Contemporary surgical management of complete atrioventricular septal defect with tetralogy of Fallot in Japan. Gen Thorac Cardiovasc Surg. doi:10.1007/s11748-022-01809-3.
Ota, N., Tachimori, H., Hirata, Y., Miyata, H., Suzuki, T., Uchita, S., Takamoto, S., & Izutani, H. (2022). Contemporary patterns of the management of truncus arteriosus (primary versus staged repair): Outcomes from the Japanese National Cardiovascular Database. European Journal of Cardio-Thoracic Surgery, 61(4), 787-794. doi:10.1093/ejcts/ezab348.
Kitamura, S., Tachimori, H., Murakami, A., Kawata, H., Ichikawa, H., & Miyata, H. (2022). Mortality analysis of arterial switch operation for transposition of the great arteries with and without ventricular septal defect. European Journal of Cardio-Thoracic Surgery, 61(4), 797-804. doi:10.1093/ejcts/ezab545.
Kessler, R. C., Kazdin, A. E., Aguilar-Gaxiola, S., Al-Hamzawi, A., Alonso, J., Altwaijri, Y. A., Andrade, L. H., Benjet, C., Bharat, C., Borges, G., Bruffaerts, R., Bunting, B., de Almeida, J. M. C., Cardoso, G., Chiu, W. T., Cia, A., Ciutan, M., Degenhardt, L., de Girolamo, G., de Jonge, P., de Vries, Y. A., Florescu, S., Gureje, O., Haro, J. M., Harris, M. G., Hu, C., Karam, A. N., Karam, E. G., Karam, G., Kawakami, N., Kiejna, A., Kovess-Masfety, V., Lee, S., Makanjuola, V., McGrath, J. J., Medina-Mora, M. E., Moskalewicz, J., Navarro-Mateu, F., Nierenberg, A. A., Nishi, D., Ojagbemi, A., Oladeji, B. D., O'Neill, S., Posada-Villa, J., Puac-Polanco, V., Rapsey, C., Ruscio, A. M., Sampson, N. A., Scott, K. M., Slade, T., Stagnaro, J. C., Stein, D. J., Tachimori, H., Ten Have, M., Torres, Y., Viana, M. C., Vigo, D. V., Williams, D. R., Wojtyniak, B., Xavier, M., Zarkov, Z., Ziobrowski, H. N., & WHO World Mental Health Survey collaborators. (2022). Patterns and correlates of patient-reported helpfulness of treatment for common mental and substance use disorders in the WHO World Mental Health Surveys. World Psychiatry, 21(2), 272-286. doi:10.1002/wps.20971.
Tanboon, J., Inoue, M., Saito, Y., Tachimori, H., Hayashi, S., Noguchi, S., Okiyama, N., Fujimoto, M., & Nishino, I. (2021). Dermatomyositis: Muscle Pathology According to Antibody Subtypes. Neurology. doi:10.1212/WNL.0000000000013176.
Tanboon, J., Inoue, M., Hirakawa, S., Tachimori, H., Hayashi, S., Noguchi, S., Suzuki, S., Okiyama, N., Fujimoto, M., & Nishino, I. (2021). Pathologic Features of Anti-Mi-2 Dermatomyositis. Neurology, 96(3), e448-e459. doi:10.1212/WNL.0000000000011269.
Shinjo, D., Tachimori, H., Maruyama-Sakurai, K., Fujimori, K., Inoue, N., & Fushimi, K. (2021). Consultation-liaison psychiatry in Japan: A nationwide retrospective observational study. BMC Psychiatry, 21(1), 235. doi:10.1186/s12888-021-03241-y.
Lee, S., Ishizuka, A., Tachimori, H., Uechi, M., Akashi, H., Hinoshita, E., Miyata, H., & Shibuya, K. (2021). Japan's development cooperation for health in Vietnam: A first holistic assessment on Japan’s ODA and non-ODA public resources cooperation. BMC Public Health, 21(1), 2175. doi:10.1186/s12889-021-12170-0.
Laowahutanon, T., Nakamura, H., Tachimori, H., Nomura, S., Liabsuetrakul, T., Lim, A., Rawdaree, P., Suchonwanich, N., Yamamoto, H., Ishizuka, A., Shibuya, K., Miyata, H., & Chongsuvivatwong, V. (2021). Hospital admission for type 2 diabetes mellitus under the Universal Coverage Scheme in Thailand: A time- and geographical-trend analysis, 2009-2016. PLoS One, 16(7), e0253434. doi:10.1371/journal.pone.0253434.
Ishizuya, A., Enomoto, M., Tachimori, H., Takahashi, H., Sugihara, G., Kitamura, S., & Mishima, K. (2021). Risk factors for low adherence to methylphenidate treatment in pediatric patients with attention-deficit/hyperactivity disorder. Sci Rep, 11(1), 1707. doi:10.1038/s41598-021-81416-z.
Ide, Y., Tachimori, H., Hirata, Y., Hirahara, N., Ota, N., Sakamoto, K., Ikeda, T., & Minatoya, K. (2021). Risk analysis for patients with a functionally univentricular heart after systemic-to-pulmonary shunt placement. European Journal of Cardio-Thoracic Surgery, 60(2), 377-383. doi:10.1093/ejcts/ezab077.
Horer, J., Hirata, Y., Tachimori, H., Ono, M., Vida, V., Herbst, C., Kansy, A., Jacobs, J. P., Tobota, Z., Sakamoto, K., Ebels, T., & Maruszewski, B. (2021). Pediatric Cardiac Surgical Patterns of Practice and Outcomes in Japan and Europe. World J Pediatr Congenit Heart Surg, 12(3), 312-319. doi:10.1177/2150135120988634. Senda, A., Endo, A., Tachimori, H., Fushimi, K., & Otomo, Y. (2020). Early administration of glucocorticoid for thyroid storm: Analysis of a national administrative database. Crit Care, 24(1), 470. doi:10.1186/s13054-020-03188-8.
Miidera, H., Enomoto, M., Kitamura, S., Tachimori, H., & Mishima, K. (2020). Association Between the Use of Antidepressants and the Risk of Type 2 Diabetes Mellitus: A Large, Population-Based Cohort Study in Japan. Diabetes Care. doi:10.2337/dc19-1175.
Shinjo, D., Tachimori, H., Maruyama-Sakurai, K., Ohnuma, T., Fujimori, K., & Fushimi, K. (2019). Risk factors for early unplanned readmission in patients with bipolar disorder: A retrospective observational study. General Hospital Psychiatry, 58, 51-58. doi:10.1016/j.genhosppsych.2019.03.003.
Stickley, A., Tachimori, H., Inoue, Y., Shinkai, T., Yoshimura, R., Nakamura, J., Morita, G., Nishii, S., Tokutsu, Y., Otsuka, Y., Egashira, K., Inoue, M., Kubo, T., Tesen, H., Takashima, N., Tominaga, H., Koyanagi, A., & Kamio, Y. (2018). Attention-deficit/hyperactivity disorder symptoms and suicidal behavior in adult psychiatric outpatients. Psychiatry and Clinical Neurosciences, 72(9), 713-722. doi:10.1111/pcn.12685.
Ishikawa, H., Tachimori, H., Takeshima, T., Umeda, M., Miyamoto, K., Shimoda, H., Baba, T., & Kawakami, N. (2018). Prevalence, treatment, and the correlates of common mental disorders in the mid 2010’s in Japan: The results of the world mental health Japan 2nd survey. Journal of Affective Disorders, 241, 554-562. doi:10.1016/j.jad.2018.08.050.
Evans-Lacko, S., Aguilar-Gaxiola, S., Al-Hamzawi, A., Alonso, J., Benjet, C., Bruffaerts, R., Chiu, W. T., Florescu, S., de Girolamo, G., Gureje, O., Haro, J. M., He, Y., Hu, C., Karam, E. G., Kawakami, N., Lee, S., Lund, C., Kovess-Masfety, V., Levinson, D., Navarro-Mateu, F., Pennell, B. E., Sampson, N. A., Scott, K. M., Tachimori, H., Ten Have, M., Viana, M. C., Williams, D. R., Wojtyniak, B. J., Zarkov, Z., Kessler, R. C., Chatterji, S., & Thornicroft, G. (2018). Socio-economic variations in the mental health treatment gap for people with anxiety, mood, and substance use disorders: Results from the WHO World Mental Health (WMH) surveys. Psychological Medicine, 48(9), 1560-1571. doi:10.1017/S0033291717003336.
Takahashi, K., Tachimori, H., Kan, C., Nishi, D., Okumura, Y., Kato, N., & Takeshima, T. (2017). Spatial analysis for regional behavior of patients with mental disorders in Japan. Psychiatry and Clinical Neurosciences, 71(4), 254-261. doi:10.1111/pcn.12488.

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