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Hospital / health system · Okayama · Japan

Okayama University Hospital

In research, Okayama University Hospital stands highest in Medicine (#2,895 of 10,443 worldwide), Health Sciences (#3,666 of 11,982 worldwide) and Life Sciences (#4,686 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Hematology, Pulmonary and Respiratory Medicine and Oncology — Hematology is 9.8× its share of world research.

hsc.okayama-u.ac.jp/hos/enROR OpenAlex
World rank, 2022–2025
#8,941
of 28,054 · #11,477 all time
Rank in Japan
#229
of 1,070
Research works
3k
▲ 42% vs 2013–17
Citations
38k
12.5 per fractional work
Top-10% rate
9.5%
record average 16.5%
Open access
60%
world 28%

What is Okayama University Hospital known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #2,895 of 10,443 8.9%563 #3533
Health SciencesDomain #3,666 of 11,982 8.8%605 #4222
Life SciencesDomain #4,686 of 7,800 11.2%118 #6361
SurgerySubfield #1,165 of 1,816 9.4%107 #2006
Pulmonary and Respiratory MedicineSubfield #974 of 1,144 7.4%85 #1579
Biochemistry, Genetics and Molecular BiologyField #3,368 of 3,579 12.7%79 #6004

Each strip is that field’s whole ranked pool, with the notch where Okayama University Hospital sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Medicine#3,533 #2,895
  2. Health Sciences#4,222 #3,666
  3. Life Sciences#6,361 #4,686
  4. Surgery#2,006 #1,165
  5. Pulmonary and Respiratory Medicine#1,579 #974
  6. Biochemistry, Genetics and Molecular Biology#6,004 #3,368
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Okayama University Hospital specialise in?

Where its research is concentrated relative to its size: Hematology takes 9.8× the share of its output that it takes of world research.

  1. HematologySubfield · 23.2 works9.8×
  2. Pulmonary and Respiratory MedicineSubfield · 84.6 works7.0×
  3. OncologySubfield · 59.0 works6.7×
  4. SurgerySubfield · 107.0 works5.8×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.06× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.91× its world share, 79 worksBiochemistry, Geneti…Immunology and Microbiology: 2.40× its world share, 19 worksImmunology and Micro…Neuroscience: 0.98× its world share, 12 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.89× its world share, 5 worksPharmacology, Toxico…Chemistry: 0.13× its world share, 2 worksChemistryComputer Science: 0.05× its world share, 3 worksComputer ScienceEarth and Planetary Sciences: 0.01× its world share, 0 worksEarth and Planetary …Engineering: 0.15× its world share, 18 worksEngineeringEnvironmental Science: 0.06× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.08× its world share, 2 worksMaterials ScienceMathematics: 0.17× its world share, 2 worksMathematicsPhysics and Astronomy: 0.20× its world share, 4 worksPhysics and AstronomyDentistry: 4.56× its world share, 17 worksDentistryHealth Professions: 0.93× its world share, 19 worksHealth ProfessionsMedicine: 3.75× its world share, 563 worksMedicineNursing: 1.19× its world share, 5 worksNursingVeterinary: 1.25× its world share, 1 worksVeterinaryArts and Humanities: 0.07× its world share, 2 worksArts and HumanitiesBusiness, Management and Accounting: 0.08× its world share, 2 worksBusiness, Management…Decision Sciences: 0.22× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.10× its world share, 2 worksEconomics, Econometr…Psychology: 0.57× its world share, 14 worksPsychologySocial Sciences: 0.06× its world share, 6 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Dentistry, 4.6×. Every wedge is a field page.

Who are the top researchers at Okayama University Hospital?

Ranked on the composite score, Eiki Ichihara, Kadoaki Ohashi and Daisuke Ennishi lead among researchers whose main affiliation is Okayama University Hospital.

  1. 1 Eiki Ichihara Japan · #122,137 worldwide 290 citations · 67 works
  2. 2 Kadoaki Ohashi Japan · #150,642 worldwide 192 citations · 50 works
  3. 3 Daisuke Ennishi Japan · #322,291 worldwide 74 citations · 36 works
  4. 4 Yoshiaki Oda Japan · #385,245 worldwide 107 citations · 39 works
  5. 5 Toshio Kubo Japan · #458,661 worldwide 108 citations · 46 works
  6. 6 Noboru Asada Japan · #577,355 worldwide 21 citations · 26 works
  7. 7 Katsuyuki Hotta Japan · #585,065 worldwide 150 citations · 89 works
  8. 8 Hideaki Fujiwara Japan · #745,656 worldwide 89 citations · 66 works
  9. 9 Tadahiko Shien Japan · #747,002 worldwide 69 citations · 46 works
  10. 10 Kazuyoshi Shimizu Japan · #756,304 worldwide 17 citations · 19 works
All ranked researchers at Okayama University Hospital

Which keywords describe research at Okayama University Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Chemotherapy, Epidemiology, Prognostic Factors, Inflammation, Immunotherapy, Clinical Practice Guidelines, Treatment and Radiotherapy.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Epidemiology81▲ 2.6×106 topics
  2. Inflammation50▲ 3.1×68 topics
  3. Chemotherapy48▲ 8.8×23 topics
  4. Prognostic Factors36▲ 11×14 topics
  5. Immunotherapy35▲ 6.3×19 topics
  6. Treatment34▲ 3.6×40 topics
  7. Diagnosis30▲ 4.1×34 topics
  8. Clinical Practice Guidelines29▲ 6.7×14 topics
  9. Quality of Life26▲ 2.3×37 topics
  10. Cancer24▲ 2.3×42 topics
  11. Radiotherapy23▲ 7.7×12 topics
  12. Genetic Mutations23▲ 6.7×21 topics
  13. Clinical Trials22▲ 4.2×15 topics
  14. Surgical Management22▲ 6.8×20 topics
  15. Tumor Microenvironment21▲ 6.1×8 topics
  16. Management19▲ 3.1×28 topics
  17. Immunosuppressive Therapy18▲ 13×8 topics
  18. Targeted Therapy18▲ 10×5 topics
  19. Transplantation18▲ 23×4 topics
  20. Survival Analysis17▲ 8.1×6 topics
  21. Complications17▲ 4.4×16 topics
  22. Neoadjuvant Therapy16▲ 8.4×5 topics
  23. Lymphoma15▲ 12×4 topics
  24. Treatment Guidelines15▲ 8.9×7 topics
  25. Mesenchymal Stem Cells15▲ 18×3 topics
  26. Hematopoietic Stem Cells14▲ 21×3 topics
  27. Metastasis14▲ 5.4×10 topics
  28. PET Imaging14▲ 10×4 topics
  29. Rejection14▲ 43×2 topics
  30. Molecular Characterization13▲ 9.4×6 topics
  31. Rituximab13▲ 11×4 topics
  32. Molecular Profiling13▲ 16×3 topics
  33. Prognosis13▲ 4.9×9 topics
  34. Heart Transplant12▲ 49×1 topic
  35. Lung Transplant12▲ 49×1 topic
  36. Adjuvant Therapy12▲ 12×2 topics
  37. Breast Cancer12▲ 6.3×10 topics
  38. Fibrosis11▲ 7.7×8 topics
  39. Genomic Profiling10▲ 13×2 topics
  40. Gene Expression Profiling10▲ 16×2 topics

Which research topics does Okayama University Hospital publish most on?

By volume in 2022–2025: Transplantation: Methods and Outcomes, Lung Cancer Treatments and Mutations, Hematopoietic Stem Cell Transplantation and Lymphoma Diagnosis and Treatment.

Transplantation: Methods…12Transplantation: Methods and Outcomes: 12 fractional worksLung Cancer Treatments a…10Lung Cancer Treatments and Mutations: 10 fractional worksHematopoietic Stem Cell Transplantation: 9 fractional worksLymphoma Diagnosis and Treatment: 8 fractional worksPancreatic and Hepatic Oncology Research: 8 fractional worksGallbladder and Bile Duct Disorders: 7 fractional worksInterstitial Lung Diseases and Idiopathic Pulmonary Fibrosis: 6 fractional worksGastric Cancer Managemen…6Gastric Cancer Management and Outcomes: 6 fractional worksCAR-T cell therapy research: 6 fractional worksCancer Immunotherapy and Biomarkers: 6 fractional works
SurgeryPulmonary and Respiratory MedicineHematologyPathology and Forensic Medicine1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Transplantation: Methods and Outcomes Surgery 12 works
  2. 2 Lung Cancer Treatments and Mutations Pulmonary and Respiratory Medicine 10 works
  3. 3 Hematopoietic Stem Cell Transplantation Hematology 9 works
  4. 4 Lymphoma Diagnosis and Treatment Pathology and Forensic Medicine 8 works
  5. 5 Pancreatic and Hepatic Oncology Research Oncology 8 works
  6. 6 Gallbladder and Bile Duct Disorders Pulmonary and Respiratory Medicine 7 works
  7. 7 Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis Pulmonary and Respiratory Medicine 6 works
  8. 8 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 6 works
  9. 9 CAR-T cell therapy research Oncology 6 works
  10. 10 Cancer Immunotherapy and Biomarkers Oncology 6 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available59.9%not open40.1%

World: 28% of research is openly available.

with international co-authors8.9%domestic only91.1%

World: 19% is written across borders.

How has Okayama University Hospital's research output changed?

Output in 2018–2022 was 42% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Okayama

All research institutions in Okayama

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.