Personnel Information

写真a

ISHIMARU MIHO


Job title

Project Assistant Professor

Research Areas, Keywords

Dental Epidemiology, Health Services Research, Clinical Epidemiology, Administrative database study
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Graduating School 【 display / non-display 】

  • Hokkaido University, Faculty of Dentistry, 2012.03, Graduated

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Graduate School 【 display / non-display 】

  • The University of Tokyo, Graduate School, Division of Medical Sciences, School of Public Health, Master's Course, 2016.03, Completed

  • The University of Tokyo, Graduate School, Division of Medical Sciences, Graduate school of Medicine, Doctor's Course, 2020.03, Completed

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Degree 【 display / non-display 】

  • Ph.D., The University of Tokyo

  • Master of Public Health, The University of Tokyo

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Campus Career 【 display / non-display 】

  • 2022.04
    -
    2022.11
    Tokyo Medical and Dental University， Graduate School of Medical and Dental Sciences， Medical and Dental Sciences， Public Health， Oral Health Promotion， Assistant Professor
  • 2022.12
    -
    Now
    Tokyo Medical and Dental University， Institute of Education， Project Assistant Professor
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External Career 【 display / non-display 】

  • 2012.04
    -
    2013.09
    Asahikawa Medical University, Department of dental and oral surgery, Trainee Resident of Dentistry
  • 2013.10
    -
    2014.03
    Kushiro Rosai Hospital, Department of dental and oral surgery, Dental Resident
  • 2017.04
    -
    2020.03
    , Project Researcher
  • 2020.04
    -
    2022.03
    University of Tsukuba, Department of Health services research, Assistant Professor
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Academic Society Affiliations 【 display / non-display 】

  • JAPANESE SOCIETY FOR DENTAL HEALTH

  • Japanese Society of Public Health

  • JAPAN EPIDEMIOLOGICAL ASSOCIATION

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Research Areas 【 display / non-display 】

  • Social dentistry

  • Medical management and medical sociology

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Research Theme 【 display / non-display 】

  • The administrative claims database study for safety for dental visits in older adults., 2022.04 - 2026.03

  • The administrative claims database study for safety for dental visits in older adults., 2022.04 - 2026.03

  • The administrative claims database study for safety for dental visits in older adults., 2022.04 - 2026.03

  • The effect of community dental check-ups on prevention of periodontal diseases., 2022.04 - 2025.03

  • The effect of community dental check-ups on prevention of periodontal diseases., 2022.04 - 2025.03

  • The effect of community dental check-ups on prevention of periodontal diseases., 2022.04 - 2025.03

  • Estimation of unmet dental needs for in-hospital patients in Japan., 2020.09 - 2023.03

  • Estimation of unmet dental needs for in-hospital patients in Japan., 2020.09 - 2023.03

  • Estimation of unmet dental needs for in-hospital patients in Japan., 2020.09 - 2023.03

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Published Papers & Misc 【 display / non-display 】

  1. Oral self-care, pneumococcal vaccination, and pneumonia among Japanese older people, assessed with machine learning. 2023.07; ( PubMed, DOI )

  2. Miho Ishimaru, Takashi Zaitsu, Shiho Kino, Kento Taira, Yuko Inoue, Hideto Takahashi, Nanako Tamiya. Dental Utilization Stratified by the Purpose of Visit: A Population-Based Study in Japan. International dental journal. 2023.07; ( PubMed, DOI )

  3. Response to: Hemoglobin drop associated with the risk of hospital mortality and acute kidney injury among COVID-19 inpatients. 2023.06; ( PubMed, DOI )

  4. Association between place of dental check-ups and work absenteeism among Japanese workers. 2023.06; 65 (1): e12415. ( PubMed, DOI )

  5. Reconsidering economic interventions to reduce oral health inequalities. 2023.06; ( PubMed, DOI )

  6. Hospital-Level Variation in Cardiac Rehabilitation After Myocardial Infarction in Japan During Fiscal Years 2014-2015 Using the National Database. 2023.05; 5 (5): 177-186. ( PubMed, DOI )

  7. Consolidation of the perinatal care system and workload of obstetricians: an ecological study in Japan. 2023.04; 4 1030443. ( PubMed, DOI )

  8. Factors affecting in-hospital mortality among pediatric patients with myocarditis treated with mechanical circulatory support. 2023.03; ( PubMed, DOI )

  9. The Effect of Business Operating Systems on Nursing Home Termination. 2023; 68 1605439. ( PubMed, DOI )

  10. Yohei Hashimoto, Hayato Yamana, Nobuaki Michihata, Daisuke Shigemi, Miho Ishimaru, Hiroki Matsui, Hideo Yasunaga, Makoto Aihara. Eye drops for dry eye disease during pregnancy and adverse neonatal outcomes: high-dimensional propensity score analyses. Ophthalmic Epidemiol. 2022.08; 29 (4): 384-393. ( PubMed, DOI )

  11. Yuko Inoue, Takashi Zaitsu, Akiko Oshiro, Miho Ishimaru, Kento Taira, Hideto Takahashi, Jun Aida, Nanako Tamiya. Association of marital status and access to dental care among the Japanese population: a cross-sectional study. BMC Oral Health. 2022.07; 22 (1): 278. ( PubMed, DOI )

  12. Miho Ishimaru, Kento Taira, Takashi Zaitsu, Yuko Inoue, Shiho Kino, Hideto Takahashi, Nanako Tamiya. Characteristics of Hospitals Employing Dentists, and Utilization of Dental Care Services for Hospitalized Patients in Japan: A Nationwide Cross-Sectional Study. Int J Environ Res Public Health. 2022.05; 19 (11): ( PubMed, DOI )

  13. Miho Ishimaru, Sachiko Ono, Kojiro Morita, Hiroki Matsui, Yasuhiro Hagiwara, Hideo Yasunaga. Prevalence, Incidence Rate, and Risk Factors of Medication-Related Osteonecrosis of the Jaw in Patients With Osteoporosis and Cancer: A Nationwide Population-Based Study in Japan. J Oral Maxillofac Surg. 2022.04; 80 (4): 714-727. ( PubMed, DOI )

  14. Misuzu Sato, Hayato Yamana, Sachiko Ono, Miho Ishimaru, Hiroki Matsui, Hideo Yasunaga. Trends in prophylactic antibiotic use for tooth extraction from 2015 to 2018 in Japan: An analysis using a health insurance claims database. J Infect Chemother. 2022.04; 28 (4): 504-509. ( PubMed, DOI )

  15. Yohei Hashimoto, Hiroki Matsui, Nobuaki Michihata, Miho Ishimaru, Hideo Yasunaga, Makoto Aihara, Toshikatsu Kaburaki. Incidence of Sympathetic Ophthalmia after Inciting Events: A National Database Study in Japan. Ophthalmology. 2022.03; 129 (3): 344-352. ( PubMed, DOI )

  16. Yuta Taniguchi, Toshiki Kuno, Jun Komiyama, Motohiko Adomi, Toshiki Suzuki, Toshikazu Abe, Miho Ishimaru, Atsushi Miyawaki, Makoto Saito, Hiroyuki Ohbe, Yoshihisa Miyamoto, Shinobu Imai, Tadashi Kamio, Nanako Tamiya, Masao Iwagami. Comparison of patient characteristics and in-hospital mortality between patients with COVID-19 in 2020 and those with influenza in 2017-2020: a multicenter, retrospective cohort study in Japan. Lancet Reg Health West Pac. 2022.03; 20 100365. ( PubMed, DOI )

  17. T Sakamoto, M Fujiogi, M Ishimaru, H Matsui, K Fushimi, H Yasunaga. Comparison of postoperative infection after emergency inguinal hernia surgery with enterectomy between mesh repair and non-mesh repair: a national database analysis. Hernia. 2022.02; 26 (1): 217-223. ( PubMed, DOI )

  18. T Kuno, Y Miyamoto, M Iwagami, M Ishimaru, M So, M Takahashi, N N Egorova. The association of hemoglobin drop with in-hospital outcomes in COVID-19 patients. QJM. 2022.01; 114 (11): 789-794. ( PubMed, DOI )

  19. Sachiko Ono, Yusuke Sasabuchi, Miho Ishimaru, Yosuke Ono, Hiroki Matsui, Hideo Yasunaga. Short-term effects of reduced cost sharing on childhood dental care utilization and dental caries prevention in Japan. Community Dent Oral Epidemiol. 2022.01; ( PubMed, DOI )

  20. Yu Sun, Masao Iwagami, Nobuo Sakata, Tomoko Ito, Ryota Inokuchi, Kazuaki Uda, Shota Hamada, Miho Ishimaru, Jun Komiyama, Naoaki Kuroda, Satoru Yoshie, Tatsuro Ishizaki, Katsuya Iijima, Nanako Tamiya. Development and validation of a risk score to predict the frequent emergency house calls among older people who receive regular home visits. BMC Prim Care. 2022; 23 (1): 132. ( PubMed, DOI )

  21. Ryota Inokuchi, Toshiki Kuno, Jun Komiyama, Kazuaki Uda, Yoshihisa Miyamoto, Yuta Taniguchi, Toshikazu Abe, Miho Ishimaru, Motohiko Adomi, Nanako Tamiya, Masao Iwagami. Association between Nafamostat Mesylate and In-Hospital Mortality in Patients with Coronavirus Disease 2019: A Multicenter Observational Study. J Clin Med. 2021.12; 11 (1): ( PubMed, DOI )

  22. Taisuke Jo, Nobuaki Michihata, Hayato Yamana, Kojiro Morita, Miho Ishimaru, Yasuhiro Yamauchi, Wakae Hasegawa, Hirokazu Urushiyama, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. Risk of drug-induced interstitial lung disease in hospitalised patients: a nested case-control study. Thorax. 2021.12; 76 (12): 1193-1199. ( PubMed, DOI )

  23. Sachiko Ono, Miho Ishimaru, Yusuke Ida, Hayato Yamana, Yosuke Ono, Kazuto Hoshi, Hideo Yasunaga. Validity of diagnoses and procedures in Japanese dental claims data. BMC Health Serv Res. 2021.10; 21 (1): 1116. ( PubMed, DOI )

  24. Megumi Koizumi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba, Hideo Yasunaga. Factors associated with the occurrence of stomal stenosis after tracheostomy in adults. Auris Nasus Larynx. 2021.10; 48 (5): 973-977. ( PubMed, DOI )

  25. Toshiki Kuno, Yoshihisa Miyamoto, Masao Iwagami, Miho Ishimaru, Mai Takahashi, Natalia N Egorova. The association of remdesivir and in-hospital outcomes for COVID-19 patients treated with steroids. J Antimicrob Chemother. 2021.09; 76 (10): 2690-2696. ( PubMed, DOI )

  26. Kento Taira, Takahiro Mori, Miho Ishimaru, Masao Iwagami, Nobuo Sakata, Taeko Watanabe, Hideto Takahashi, Nanako Tamiya. Regional Inequality in Dental Care Utilization in Japan: An Ecological Study Using the National Database of Health Insurance Claims. Lancet Reg Health West Pac. 2021.07; 12 100170. ( PubMed, DOI )

  27. Masao Iwagami, Ryosuke Kumazawa, Yoshihisa Miyamoto, Yuri Ito, Miho Ishimaru, Kojiro Morita, Shota Hamada, Nanako Tamiya, Hideo Yasunaga. Risk of Cancer in Association with Ranitidine and Nizatidine vs Other H2 Blockers: Analysis of the Japan Medical Data Center Claims Database 2005-2018. Drug Saf. 2021.05; 44 (3): 361-371. ( PubMed, DOI )

  28. Yuki Miyamoto, Hiroyuki Ohbe, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of tranexamic acid in patients with colonic diverticular bleeding: A nationwide inpatient database study. J Gastroenterol Hepatol. 2021.04; 36 (4): 999-1005. ( PubMed, DOI )

  29. Yohei Hashimoto, Nobuaki Michihata, Hiroki Matsui, Miho Ishimaru, Kiyohide Fushimi, Hideo Yasunaga, Makoto Aihara, Muneyuki Takao, Ryo Obata. Recent trends in vitreoretinal surgery: a nationwide database study in Japan, 2010-2017. Jpn J Ophthalmol. 2021.01; 65 (1): 54-62. ( PubMed, DOI )

  30. Daisuke Shigemi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Suicide attempts during pregnancy and perinatal outcomes. J Psychiatr Res. 2021.01; 133 101-105. ( PubMed, DOI )

  31. Ryusuke Katsuki, Taisuke Jo, Hideo Yasunaga, Miho Ishimaru, Takashi Sakamoto. Outcomes of self-expandable metal stent as bridge to surgery versus emergency surgery for left-sided obstructing colon cancer: A retrospective cohort study. Am J Surg. 2021.01; 221 (1): 168-173. ( PubMed, DOI )

  32. Yuko Inoue, Takashi Zaitsu, Oshiro Akiko, Miho Ishimaru, Kento Taira, Hideto Takahashi, Jun Aida, Nanako Tamiya. Association between exposure to secondhand smoking at home and tooth loss in Japan: A cross-sectional analysis of data from the 2016 National Health and Nutrition Survey. Tob Induc Dis. 2021; 19 96. ( PubMed, DOI )

  33. Miho Ishimaru. Introduction to High-dimensional Propensity Score Analysis Annals of Clinical Epidemiology. 2020.10; 2 (4): 85-94. ( DOI ichushi )

  34. Yuki Miyamoto, Hiroyuki Ohbe, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. The Effect of Carbazochrome Sodium Sulfonate in Patients with Colonic Diverticular Bleeding: Propensity Score Matching Analyses Using a Nationwide Inpatient Database. Intern Med. 2020.08; 59 (15): 1789-1794. ( PubMed, DOI )

  35. Yasuhiko Miyakuni, Mikio Nakajima, Hiroyuki Ohbe, Yusuke Sasabuchi, Richard H Kaszynski, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Yoshihiro Yamaguchi, Hideo Yasunaga. Angiography versus colonoscopy in patients with severe lower gastrointestinal bleeding: a nation-wide observational study. Acute Med Surg. 2020.07; 7 (1): e533. ( PubMed, DOI )

  36. Daisuke Shigemi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Suicide Attempts Among Pregnant and Postpartum Women in Japan: A Nationwide Retrospective Cohort Study. J Clin Psychiatry. 2020.05; 81 (3): ( PubMed, DOI )

  37. Naoki Hirose, Miho Ishimaru, Kojiro Morita, Hideo Yasunaga. A review of studies using the Japanese National Database of Health Insurance Claims and Specific Health Checkups Annals of Clinical Epidemiology. 2020.05; 2 (1):

  38. Miho Ishimaru, Sachiko Ono, Hiroki Matsui, Hideo Yasunaga. Association between perioperative oral care and postoperative pneumonia after cancer resection: conventional versus high-dimensional propensity score matching analysis. Clin Oral Investig. 2019.09; 23 (9): 3581-3588. ( PubMed, DOI )

  39. Megumi Koizumi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba, Hideo Yasunaga. Outcomes of endoscopic sinus surgery for sinusitis-induced intracranial abscess in patients undergoing neurosurgery. Neurosurg Focus. 2019.08; 47 (2): E12. ( PubMed, DOI )

  40. Miho Ishimaru, Sachiko Ono, Kojiro Morita, Hiroki Matsui, Hideo Yasunaga. Domiciliary dental care among homebound older adults: A nested case-control study in Japan. Geriatr Gerontol Int. 2019.07; 19 (7): 679-683. ( PubMed, DOI )

  41. Megumi Koizumi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba, Hideo Yasunaga. Tranexamic acid and post-tonsillectomy hemorrhage: propensity score and instrumental variable analyses. Eur Arch Otorhinolaryngol. 2019.01; 276 (1): 249-254. ( PubMed, DOI )

  42. M Ishimaru, H Matsui, S Ono, Y Hagiwara, K Morita, H Yasunaga. Preoperative oral care and effect on postoperative complications after major cancer surgery. Br J Surg. 2018.11; 105 (12): 1688-1696. ( PubMed, DOI )

  43. Sakiko Itoh, Hiroyuki Hikichi, Hiroshi Murayama, Miho Ishimaru, Yasuko Ogata, Hideo Yasunaga. Association Between Advanced Care Management and Progression of Care Needs Level in Long-Term Care Recipients: Retrospective Cohort Study. JMIR Aging. 2018.07; 1 (2): e11117. ( PubMed, DOI )

  44. Kojiro Morita, Sachiko Ono, Miho Ishimaru, Hiroki Matsui, Takashi Naruse, Hideo Yasunaga. Factors Affecting Discharge to Home of Geriatric Intermediate Care Facility Residents in Japan. J Am Geriatr Soc. 2018.04; 66 (4): 728-734. ( PubMed, DOI )

  45. Sachiko Ono, Miho Ishimaru, Hayato Yamana, Kojiro Morita, Yosuke Ono, Hiroki Matsui, Hideo Yasunaga. Enhanced Oral Care and Health Outcomes Among Nursing Facility Residents: Analysis Using the National Long-Term Care Database in Japan. J Am Med Dir Assoc. 2017.03; 18 (3): 277.e1-277.e5. ( PubMed, DOI )

  46. Miho Ishimaru, Sachiko Ono, Sayaka Suzuki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Artificial nutrition dependence after cetuximab versus cisplatin combined with radiotherapy for advanced head and neck cancer: A propensity score-matched analysis. Head Neck. 2017.02; 39 (2): 320-325. ( PubMed, DOI )

  47. Miho Ishimaru, Sachiko Ono, Hideo Yasunaga, Hiroki Matsui, Soichi Koike. Projected future distribution of dentists in Japan. J Public Health Dent. 2016.07; 76 (3): 241-248. ( PubMed, DOI )

  48. Miho Ishimaru, Sachiko Ono, Sayaka Suzuki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Risk Factors for Free Flap Failure in 2,846 Patients With Head and Neck Cancer: A National Database Study in Japan. J Oral Maxillofac Surg. 2016.06; 74 (6): 1265-1270. ( PubMed, DOI )

  49. Sachiko Ono, Miho Ishimaru, Yosuke Ono, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Impact of Body Mass Index on the Outcomes of Open Reduction for Mandibular Fractures. J Oral Maxillofac Surg. 2016.05; 74 (5): 1024.e1-1024.e5. ( PubMed, DOI )

  50. Sachiko Ono, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of Hospital Volume on Outcomes of Surgery for Cleft Lip and Palate. J Oral Maxillofac Surg. 2015.11; 73 (11): 2219-2224. ( PubMed, DOI )

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Conference Activities & Talks 【 display / non-display 】

  1. Miho Ishimaru, Sachiko Ono, Hiroki Matsui, Hideo Yasunaga.. Association between perioperative oral care and postoperative complications: a high-dimensional propensity score matched analysis. . International alliance of research universities Aging, Longevity, and Health Initiative. 2016.11.04

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