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Hospital / health system · Bangkok · Thailand

Vajira Hospital

In research, Vajira Hospital stands highest in Medicine (#4,296 of 8,541 worldwide) and Health Sciences (#5,609 of 9,902 worldwide), 2022-now.

vajira.ac.th/bROR OpenAlex
World rank, 2022-now
#15,995
of 22,385 · #24,362 all time
Rank in Thailand
#104
of 144
Research works
461
▲ 96% vs 2018-21
Citations
5k
10.8 per fractional work
Top-10% rate
8.1%
all institutions 10.0%
vs its own fields
0.91×
1.00× is exactly expected
Open access
60%
world 40%
International
17%
world 18%
Vajira Hospital

What is Vajira Hospital known for in research?

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

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #4,296 of 8,541 6.8%133 #6930
Health SciencesDomain #5,609 of 9,902 7.1%143 #8718

Each strip is that field's whole ranked pool, with the notch where Vajira 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Vajira Hospital work in?

In 2022-now, 78% of research at Vajira Hospital is in Health Sciences, 12% in Life Sciences. Its largest fields are Medicine (72%), Biochemistry, Genetics and Molecular Biology (6%), Health Professions (4%). It does 3.2× the world's share of Health Sciences.

Health Sciences: 160 fractional works · 78.1% of its workMedicine: 149 fractional works · 72.5% of its workSurgery: 22 fractional works · 10.8% of its workEpidemiology: 12 fractional works · 6.0% of its workPulmonary and Respiratory Medicine: 11 fractional works · 5.5% of its workInfectious Diseases: 9 fractional works · 4.3% of its workPublic Health, Environmental and Occupational Health: 8 fractional works · 3.9% of its workOncology: 7 fractional works · 3.6% of its workPhysiology: 7 fractional works · 3.6% of its workCardiology and Cardiovascular Medicine: 7 fractional works · 3.4% of its workEmergency Medicine: 5 fractional works · 2.4% of its workNeurology: 5 fractional works · 2.4% of its workOphthalmology: 5 fractional works · 2.3% of its workObstetrics and Gynecology: 4 fractional works · 1.9% of its workPathology and Forensic Medicine: 4 fractional works · 1.9% of its workPediatrics, Perinatology and Child Health: 4 fractional works · 1.9% of its workNephrology: 4 fractional works · 1.9% of its workRadiology, Nuclear Medicine and Imaging: 3 fractional works · 1.7% of its workEndocrinology, Diabetes and Metabolism: 3 fractional works · 1.6% of its workRheumatology: 3 fractional works · 1.5% of its workDermatology: 3 fractional works · 1.4% of its workPharmacology: 2 fractional works · 1.1% of its workCritical Care and Intensive Care Medicine: 2 fractional works · 1.0% of its workHematology: 2 fractional works · 0.9% of its workPsychiatry and Mental health: 2 fractional works · 0.8% of its workReproductive Medicine: 1 fractional works · 0.7% of its workHepatology: 1 fractional works · 0.7% of its workOtorhinolaryngology: 1 fractional works · 0.6% of its workOrthopedics and Sports Medicine: 1 fractional works · 0.6% of its workHealth Informatics: 1 fractional works · 0.6% of its workGeriatrics and Gerontology: 1 fractional works · 0.5% of its workGastroenterology: 1 fractional works · 0.4% of its workRehabilitation: 1 fractional works · 0.4% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.4% of its workUrology: 1 fractional works · 0.4% of its workImmunology and Allergy: 1 fractional works · 0.3% of its workBiochemistry: 1 fractional works · 0.3% of its workComplementary and alternative medicine: 0 fractional works · 0.2% of its workFamily Practice: 0 fractional works · 0.2% of its workGenetics: 0 fractional works · 0.2% of its workHealth Professions: 9 fractional works · 4.3% of its workGeneral Health Professions: 2 fractional works · 1.2% of its workEmergency Medical Services: 2 fractional works · 0.8% of its workHealth Information Management: 2 fractional works · 0.7% of its workRadiological and Ultrasound Technology: 1 fractional works · 0.4% of its workSpeech and Hearing: 1 fractional works · 0.3% of its workOccupational Therapy: 1 fractional works · 0.3% of its workComplementary and Manual Therapy: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workNursing: 2 fractional works · 0.7% of its workNutrition and Dietetics: 2 fractional works · 0.7% of its workVeterinary: 1 fractional works · 0.5% of its workSmall Animals: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workDentistry: 0 fractional works · 0.1% of its workLife Sciences: 24 fractional works · 11.7% of its workBiochemistry, Genetics and Molecular Biology: 12 fractional works · 5.8% of its workMolecular Biology: 6 fractional works · 2.8% of its workGenetics: 2 fractional works · 1.0% of its workCancer Research: 1 fractional works · 0.6% of its workEndocrinology: 1 fractional works · 0.4% of its workCell Biology: 1 fractional works · 0.3% of its workMolecular Medicine: 1 fractional works · 0.3% of its workClinical Biochemistry: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 5 fractional works · 2.5% of its workImmunology: 2 fractional works · 1.2% of its workMicrobiology: 1 fractional works · 0.5% of its workParasitology: 1 fractional works · 0.4% of its workVirology: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.0% of its workAgricultural and Biological Sciences: 3 fractional works · 1.6% of its workPlant Science: 2 fractional works · 0.8% of its workFood Science: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workNeuroscience: 3 fractional works · 1.5% of its workNeurology: 1 fractional works · 0.4% of its workCellular and Molecular Neuroscience: 1 fractional works · 0.3% of its workCognitive Neuroscience: 1 fractional works · 0.3% of its workSensory Systems: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.3% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.3% of its workSocial Sciences: 10 fractional works · 5.1% of its workPsychology: 6 fractional works · 2.9% of its workClinical Psychology: 4 fractional works · 2.0% of its workExperimental and Cognitive Psychology: 1 fractional works · 0.5% of its workSocial Psychology: 1 fractional works · 0.5% of its workSocial Sciences: 3 fractional works · 1.5% of its workHealth: 2 fractional works · 0.8% of its workSociology and Political Science: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.4% of its workBusiness, Management and Accounting: 1 fractional works · 0.3% of its workOrganizational Behavior and Human Resource Management: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workEconomics, Econometrics and Finance: 1 fractional works · 0.2% of its workDecision Sciences: 0 fractional works · 0.1% of its workPhysical Sciences: 10 fractional works · 5.1% of its workEnvironmental Science: 4 fractional works · 2.1% of its workHealth, Toxicology and Mutagenesis: 2 fractional works · 1.0% of its workGlobal and Planetary Change: 1 fractional works · 0.3% of its workEcology: 0 fractional works · 0.2% of its workEnvironmental Engineering: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEngineering: 2 fractional works · 1.1% of its workBiomedical Engineering: 2 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMathematics: 2 fractional works · 0.8% of its workApplied Mathematics: 1 fractional works · 0.4% of its workModeling and Simulation: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPhysics and Astronomy: 1 fractional works · 0.3% of its workRadiation: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workMaterials Science: 1 fractional works · 0.3% of its workMaterials Chemistry: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workChemistry: 0 fractional works · 0.2% of its workComputer Science: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 0 fractional works · 0.1% of its workALL ITS WORKVajira Hospital205fractional works, 2022-now
Life Sciences12%Physical Sciences5%Health Sciences78%Social Sciences5%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 23 fields, with their numbers
    1. Medicine14972.5%
    2. Health Professions94.3%
    3. Nursing20.7%
    4. Veterinary10.5%
    5. Dentistry00.1%
    1. Biochemistry, Genetics and Molecular Biology125.8%
    2. Immunology and Microbiology52.5%
    3. Agricultural and Biological Sciences31.6%
    4. Neuroscience31.5%
    5. Pharmacology, Toxicology and Pharmaceutics10.3%
    1. Psychology62.9%
    2. Social Sciences31.5%
    3. Business, Management and Accounting10.3%
    4. Economics, Econometrics and Finance10.2%
    5. Decision Sciences00.1%
    1. Environmental Science42.1%
    2. Engineering21.1%
    3. Mathematics20.8%
    4. Physics and Astronomy10.3%
    5. Materials Science10.3%
    6. Chemistry00.2%
    7. Computer Science00.2%
    8. Earth and Planetary Sciences00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 0.33× its world share, 3 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.08× its world share, 12 worksBiochemistry, Geneti…Immunology and Microbiology: 2.50× its world share, 5 worksImmunology and Micro…Neuroscience: 0.95× its world share, 3 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.87× its world share, 1 worksPharmacology, Toxico…Chemistry: 0.13× its world share, 0 worksChemistryComputer Science: 0.03× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 0.03× its world share, 0 worksEarth and Planetary …Engineering: 0.07× its world share, 2 worksEngineeringEnvironmental Science: 0.43× its world share, 4 worksEnvironmental ScienceMaterials Science: 0.09× its world share, 1 worksMaterials ScienceMathematics: 0.64× its world share, 2 worksMathematicsPhysics and Astronomy: 0.15× its world share, 1 worksPhysics and AstronomyDentistry: 0.22× its world share, 0 worksDentistryHealth Professions: 1.63× its world share, 9 worksHealth ProfessionsMedicine: 3.77× its world share, 149 worksMedicineNursing: 1.49× its world share, 2 worksNursingVeterinary: 3.63× its world share, 1 worksVeterinaryBusiness, Management and Accounting: 0.10× its world share, 1 worksBusiness, Management…Decision Sciences: 0.07× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.12× its world share, 0 worksEconomics, Econometr…Psychology: 0.96× its world share, 6 worksPsychologySocial Sciences: 0.12× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.8×. Every wedge is a field page.

All 23 fields, with their numbers
  1. Medicine3.77×149 works
  2. Veterinary3.63×1 works
  3. Immunology and Microbiology2.50×5 works
  4. Health Professions1.63×9 works
  5. Nursing1.49×2 works
  6. Biochemistry, Genetics and Molecular Biology1.08×12 works
  7. Psychology0.96×6 works
  8. Neuroscience0.95×3 works
  9. Pharmacology, Toxicology and Pharmaceutics0.87×1 works
  10. Mathematics0.64×2 works
  11. Environmental Science0.43×4 works
  12. Agricultural and Biological Sciences0.33×3 works
  13. Dentistry0.22×0 works
  14. Physics and Astronomy0.15×1 works
  15. Chemistry0.13×0 works
  16. Economics, Econometrics and Finance0.12×0 works
  17. Social Sciences0.12×3 works
  18. Business, Management and Accounting0.10×1 works
  19. Materials Science0.09×1 works
  20. Engineering0.07×2 works
  21. Decision Sciences0.07×0 works
  22. Computer Science0.03×0 works
  23. Earth and Planetary Sciences0.03×0 works

Who are the top researchers at Vajira Hospital?

Ranked on the quality score, Yotsawaj Runglodvatana, Swangjit Suraamornkul and Satit Thiengwittayaporn lead among researchers whose main affiliation is Vajira Hospital.

  1. 1 Yotsawaj Runglodvatana Thailand · #712,211 worldwide 758 citations · 19 works
  2. 2 Swangjit Suraamornkul Thailand · #767,701 worldwide 2.1k citations · 45 works
  3. 3 Satit Thiengwittayaporn Thailand · #2,254,112 worldwide 565 citations · 32 works
  4. 4 Kitigon Vichairuangthum Thailand · #3,374,162 worldwide 236 citations · 18 works
  5. 5 Waigoon Stapanavatr Thailand · #4,020,685 worldwide 157 citations · 15 works
  6. 6 Warangkana Munsakul Thailand · #4,191,385 worldwide 526 citations · 22 works
  7. 7 Sumonmal Manusirivithaya Thailand · #4,659,933 worldwide 1.4k citations · 71 works
  8. 8 Thaovalai Thavaramara Thailand · #4,684,249 worldwide 600 citations · 24 works
  9. 9 Alissara Vanichkulbodee Thailand · #5,113,794 worldwide 129 citations · 17 works
  10. 10 Chadakarn Phaloprakarn Thailand · #5,293,388 worldwide 628 citations · 52 works
All ranked researchers at Vajira Hospital

What are the most cited papers from Vajira Hospital?

The most cited paper from Vajira Hospital is "Chitosan membrane as a wound‐healing dressing: Characterization and clinical application" (Abul Kalam Azad, Niwet Sermsintham, Suwalee Chandrkrachang et al., 2004), with 402 citations. Next come "The Function of Cumulus Cells in Oocyte Growth and Maturation and in Subsequent Ovulation and Fertilization" (326) and "Platelet to lymphocyte ratio as a prognostic factor for epithelial ovarian cancer" (255).

Most cited papers
#PaperReleasedCitations
1 Chitosan membrane as a wound‐healing dressing: Characterization and clinical application Abul Kalam Azad, Niwet Sermsintham, Suwalee Chandrkrachang et al. · Journal of Biomedical Materials Research Part B Applied Biomaterials 9 Feb 2004 402
2 The Function of Cumulus Cells in Oocyte Growth and Maturation and in Subsequent Ovulation and Fertilization Bongkoch Turathum, Er-Meng Gao, Ri‐Cheng Chian · Cells Open access 2 Sep 2021 326
3 Platelet to lymphocyte ratio as a prognostic factor for epithelial ovarian cancer Supachai Raungkaewmanee, Siriwan Tangjitgamol, Sumonmal Manusirivithaya et al. · Journal of Gynecologic Oncology Open access 2012 255
4 CD4-guided scheduled treatment interruptions compared with continuous therapy for patients infected with HIV-1: results of the Staccato randomised trial Jintanat Ananworanich et al. · The Lancet Open access Aug 2006 241
5 Real-time diabetic retinopathy screening by deep learning in a multisite national screening programme: a prospective interventional cohort study Paisan Ruamviboonsuk, Richa Tiwari, Rory Sayres et al. · The Lancet Digital Health Open access 7 Mar 2022 237
All 60 most cited papers, with filters and sorting

Which keywords describe research at Vajira Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Inflammation, Cardiovascular Disease, Mortality, Treatment, Pandemic, Diagnosis and COVID-19.

▲ 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-now 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. Epidemiology32▲ 4.0×90 topics
  2. Inflammation14▲ 3.2×57 topics
  3. Cardiovascular Disease10▲ 4.5×36 topics
  4. Treatment10▲ 3.8×30 topics
  5. Pandemic8▲ 4.2×6 topics
  6. COVID-198▲ 3.1×12 topics
  7. Mortality8▲ 7.0×12 topics
  8. Diagnosis8▲ 4.2×28 topics
  9. Oxidative Stress8▲ 2.4×30 topics
  10. Quality of Life8▲ 2.6×33 topics
  11. Cancer7▲ 2.5×28 topics
  12. Depression6▲ 3.5×12 topics
  13. Management6▲ 3.8×18 topics
  14. Pathogenesis6▲ 5.5×19 topics
  15. Complications6▲ 5.6×13 topics
  16. Metabolic Syndrome6▲ 3.4×17 topics
  17. Vaccine5▲ 6.5×9 topics
  18. Biomarkers5▲ 3.6×13 topics
  19. Global Burden5▲ 4.4×10 topics
  20. Obesity5▲ 3.1×14 topics
  21. SARS-CoV-25▲ 7.8×6 topics
  22. Surgery5▲ 6.5×8 topics
  23. Chemotherapy4▲ 3.1×19 topics
  24. Clinical Trials4▲ 3.2×11 topics
  25. Critical Care4▲ 8.7×7 topics
  26. Immune Response4▲ 3.7×13 topics
  27. Chronic Kidney Disease4▲ 8.1×7 topics
  28. Prognostic Factors4▲ 4.8×14 topics
  29. ACE2 Receptor4▲ 8.6×3 topics
  30. Anxiety4▲ 3.9×4 topics
  31. Immunity4▲ 4.6×6 topics
  32. Infection4▲ 7.4×8 topics
  33. Rehabilitation4▲ 4.6×9 topics
  34. Sepsis4▲ 10×4 topics
  35. Surgical Management4▲ 4.4×12 topics
  36. Maternal Mortality3▲ 7.4×5 topics
  37. Stroke3▲ 8.9×5 topics
  38. Genomic Analysis3▲ 6.0×6 topics
  39. Macular Degeneration3▲ 11×3 topics
  40. Diabetic Retinopathy3▲ 13×2 topics

Which research topics does Vajira Hospital publish most on?

By volume in 2022-now: COVID-19 and Mental Health, COVID-19 and healthcare impacts, SARS-CoV-2 and COVID-19 Research and Sepsis Diagnosis and Treatment.

COVID-19 and Mental Health2COVID-19 and Mental Health: 2 fractional worksCOVID-19 and healthcare …2COVID-19 and healthcare impacts: 2 fractional worksSARS-CoV-2 and COVID-19 Research: 2 fractional worksSepsis Diagnosis and Treatment: 2 fractional worksRetinal Diseases and Treatments: 2 fractional worksBody Composition Measurement Techniques: 2 fractional worksMeningioma and schwannoma management: 1 fractional worksArtificial Intelligence …1Artificial Intelligence in Healthcare: 1 fractional worksTrauma and Emergency Care Studies: 1 fractional worksGestational Diabetes Research and Management: 1 fractional works
Clinical PsychologyOncologyInfectious DiseasesEpidemiology5 others

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

  1. 1 COVID-19 and Mental Health Clinical Psychology 2 works
  2. 2 COVID-19 and healthcare impacts Oncology 2 works
  3. 3 SARS-CoV-2 and COVID-19 Research Infectious Diseases 2 works
  4. 4 Sepsis Diagnosis and Treatment Epidemiology 2 works
  5. 5 Retinal Diseases and Treatments Ophthalmology 2 works
  6. 6 Body Composition Measurement Techniques Physiology 2 works
  7. 7 Meningioma and schwannoma management Epidemiology 1 works
  8. 8 Artificial Intelligence in Healthcare Health Information Management 1 works
  9. 9 Trauma and Emergency Care Studies Emergency Medicine 1 works
  10. 10 Gestational Diabetes Research and Management Obstetrics and Gynecology 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: 40% of research is openly available.

with international co-authors17.1%domestic only82.9%

World: 18% is written across borders.

How has Vajira Hospital's research output changed?

Output in 2022-2025 was 96% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Vajira Hospital as a percentage of every work published that year, 0.00094% in 2024.

still counting0.00050%0.0010%Vajira Hospital0.00080% in 202519801990200020102020

Fractional works of Vajira Hospital over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting10%20%all institutions10.0% in 2025Vajira Hospital6.4% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 9.6% in 2022.

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Vajira Hospital on Science Explorer

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