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Hospital / health system · Hōfu · Japan

Yamaguchi Prefecture Central Hospital

In research, Yamaguchi Prefecture Central Hospital stands highest in Medicine (#15,518 of 17,978 worldwide) and Health Sciences (#18,471 of 20,462 worldwide), over all time. Relative to its size it is most specialised in Medicine — Medicine is 4.5× its share of world research.

ymghp.jpROR OpenAlex
World rank, all time
#37,707
of 42,892
Rank in Japan
#1,703
of 2,112
Research works
414
▲ 3% vs 2013–17
Citations
2.5k
6.1 per fractional work
Top-10% rate
5.1%
record average 16.5%
Open access
60%
world 28%

What is Yamaguchi Prefecture Central Hospital known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
MedicineField #15,518 of 17,978 2.7%326
Health SciencesDomain #18,471 of 20,462 2.7%341

Each strip is that field’s whole ranked pool, with the notch where Yamaguchi Prefecture Central 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).

What does Yamaguchi Prefecture Central Hospital specialise in?

Where its research is concentrated relative to its size: Medicine takes 4.5× the share of its output that it takes of world research.

  1. MedicineField · 38.2 works4.5×
← 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: 0.28× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.71× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 1.05× its world share, 0 worksImmunology and Micro…Neuroscience: 1.38× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.06× its world share, 0 worksPharmacology, Toxico…Computer Science: 0.10× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 0.08× its world share, 0 worksEarth and Planetary …Engineering: 0.03× its world share, 0 worksEngineeringEnvironmental Science: 0.11× its world share, 0 worksEnvironmental ScienceHealth Professions: 0.84× its world share, 1 worksHealth ProfessionsMedicine: 4.46× its world share, 38 worksMedicineNursing: 1.15× its world share, 0 worksNursingEconomics, Econometrics and Finance: 0.08× its world share, 0 worksEconomics, Econometr…Psychology: 0.18× its world share, 0 worksPsychology1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.5×. Every wedge is a field page.

Who are the top researchers at Yamaguchi Prefecture Central Hospital?

Ranked on the composite score, Toru Takahashi, Toshiaki Kamei and Takayuki Tominaga lead among researchers whose main affiliation is Yamaguchi Prefecture Central Hospital.

  1. 1 Toru Takahashi Japan · #72,771 worldwide 189 citations · 52 works
  2. 2 Toshiaki Kamei Japan · #157,113 worldwide 147 citations · 48 works
  3. 3 Takayuki Tominaga Japan · #345,533 worldwide 133 citations · 22 works
  4. 4 Kiyoshi Nakayasu Japan · #1,104,152 worldwide 7 citations · 22 works
  5. 5 Hiroshi Mimura Japan · #1,297,090 worldwide 30 citations · 37 works
  6. 6 Satoru Kurata Japan · #1,395,659 worldwide 3 citations · 22 works
  7. 7 Kanji Akiyama Japan · #1,457,981 worldwide 2 citations · 17 works
All ranked researchers at Yamaguchi Prefecture Central Hospital

Which keywords describe research at Yamaguchi Prefecture Central Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Diagnosis, Complications, Treatment, Surgical Management, Revision Surgery, Total Hip Replacement and Cardiac Imaging.

▲ 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. Epidemiology7▲ 4.1×29 topics
  2. Diagnosis5▲ 11×17 topics
  3. Complications3▲ 15×8 topics
  4. Treatment3▲ 6.1×13 topics
  5. Inflammation3▲ 3.0×8 topics
  6. Surgical Management3▲ 15×9 topics
  7. Revision Surgery2▲ 45×2 topics
  8. Total Hip Replacement2▲ 45×2 topics
  9. Cardiac Imaging2▲ 41×3 topics
  10. Echocardiography2▲ 16×4 topics
  11. Management2▲ 5.6×9 topics
  12. Arthroplasty2▲ 43×2 topics
  13. Guidelines2▲ 8.9×5 topics
  14. Aging2▲ 7.1×3 topics
  15. Patient Satisfaction2▲ 12×2 topics
  16. Clinical Practice Guidelines2▲ 6.6×9 topics
  17. Magnetic Resonance Imaging2▲ 14×2 topics
  18. Outcomes2▲ 42×1 topic
  19. Pathogenesis2▲ 6.6×6 topics
  20. Prognosis2▲ 10×4 topics
  21. Total Knee Replacement2▲ 51×1 topic
  22. Heart Failure1▲ 7.5×3 topics
  23. Vaccine1▲ 7.5×6 topics
  24. Diagnostic Imaging1▲ 25×3 topics
  25. Myocardial Infarction1▲ 12×2 topics
  26. Percutaneous Coronary Intervention1▲ 22×3 topics
  27. Prognostic Factors1▲ 6.6×6 topics
  28. Anticoagulant Therapy1▲ 21×2 topics
  29. Catheter Ablation1▲ 22×2 topics
  30. Coronary Artery Disease1▲ 23×1 topic
  31. Elderly Patients1▲ 16×2 topics
  32. Myocardial Perfusion1▲ 41×1 topic
  33. Pneumothorax1▲ 76×2 topics
  34. Stroke Prevention1▲ 23×2 topics
  35. Surgery1▲ 7.9×5 topics
  36. Atherosclerosis1▲ 8.8×3 topics
  37. Hip Arthroplasty1▲ 38×1 topic
  38. Mortality Risk1▲ 9.4×2 topics
  39. Physical Performance1▲ 25×2 topics
  40. Wear Particles1▲ 38×1 topic

Which research topics does Yamaguchi Prefecture Central Hospital publish most on?

By volume in 2022–2025: Total Knee Arthroplasty Outcomes, Cardiac Imaging and Diagnostics, Orthopaedic implants and arthroplasty and Coronary Interventions and Diagnostics.

Total Knee Arthroplasty …2Total Knee Arthroplasty Outcomes: 2 fractional worksCardiac Imaging and Diag…1Cardiac Imaging and Diagnostics: 1 fractional worksOrthopaedic implants and…1Orthopaedic implants and arthroplasty: 1 fractional worksCoronary Interventions a…1Coronary Interventions and Diagnostics: 1 fractional worksFrailty in Older Adults: 1 fractional worksNutrition and Health in Aging: 1 fractional worksCardiac tumors and thrombi1Cardiac tumors and thrombi: 1 fractional worksAtrial Fibrillation Management and Outcomes: 1 fractional worksPleural and Pulmonary Diseases: 1 fractional worksOrthopedic Infections an…1Orthopedic Infections and Treatments: 1 fractional works
SurgeryRadiology, Nuclear Medicine and ImagingGeriatrics and GerontologyPhysiology2 others

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

  1. 1 Total Knee Arthroplasty Outcomes Surgery 2 works
  2. 2 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 1 works
  3. 3 Orthopaedic implants and arthroplasty Surgery 1 works
  4. 4 Coronary Interventions and Diagnostics Surgery 1 works
  5. 5 Frailty in Older Adults Geriatrics and Gerontology 1 works
  6. 6 Nutrition and Health in Aging Physiology 1 works
  7. 7 Cardiac tumors and thrombi Cardiology and Cardiovascular Medicine 1 works
  8. 8 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 1 works
  9. 9 Pleural and Pulmonary Diseases Pulmonary and Respiratory Medicine 1 works
  10. 10 Orthopedic Infections and Treatments Surgery 1 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 available60.4%not open39.6%

World: 28% of research is openly available.

with international co-authors2.0%domestic only98.0%

World: 19% is written across borders.

How has Yamaguchi Prefecture Central Hospital's research output changed?

Output in 2018–2022 was 3% 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 Hōfu

All research institutions in Hōfu

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.