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Hospital / health system · Kozhikode · India

National Hospital

In research, National Hospital stands highest in Medicine (#5,488 of 8,541 worldwide) and Health Sciences (#6,420 of 9,902 worldwide), 2022-now.

nationalhospitals.com/#ROR OpenAlex
World rank, 2022-now
#14,167
of 22,385 · #20,055 all time
Rank in India
#980
of 1,562
Research works
2.4k
▲ 94% vs 2018-21
Citations
51k
21.3 per fractional work
Top-10% rate
5.7%
all institutions 10.0%
vs its own fields
0.78×
1.00× is exactly expected
Open access
44%
world 40%
International
41%
world 18%
National Hospital

What is National 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 #5,488 of 8,541 4.6%184 #9070
Health SciencesDomain #6,420 of 9,902 4.4%212 #11516

Each strip is that field's whole ranked pool, with the notch where National 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 National Hospital work in?

In 2022-now, 73% of research at National Hospital is in Health Sciences, 15% in Life Sciences. Its largest fields are Medicine (64%), Biochemistry, Genetics and Molecular Biology (10%), Health Professions (8%). It does 3.1× the world's share of Health Sciences.

Health Sciences: 253 fractional works · 73.2% of its workMedicine: 221 fractional works · 63.9% of its workSurgery: 32 fractional works · 9.2% of its workPulmonary and Respiratory Medicine: 17 fractional works · 4.8% of its workEpidemiology: 16 fractional works · 4.7% of its workPediatrics, Perinatology and Child Health: 16 fractional works · 4.6% of its workPublic Health, Environmental and Occupational Health: 14 fractional works · 4.1% of its workCardiology and Cardiovascular Medicine: 11 fractional works · 3.3% of its workRheumatology: 9 fractional works · 2.5% of its workOncology: 8 fractional works · 2.4% of its workNeurology: 8 fractional works · 2.4% of its workPhysiology: 8 fractional works · 2.3% of its workPsychiatry and Mental health: 8 fractional works · 2.3% of its workEmergency Medicine: 8 fractional works · 2.2% of its workGenetics: 7 fractional works · 1.9% of its workInfectious Diseases: 6 fractional works · 1.8% of its workRadiology, Nuclear Medicine and Imaging: 6 fractional works · 1.8% of its workEndocrinology, Diabetes and Metabolism: 6 fractional works · 1.7% of its workDermatology: 5 fractional works · 1.4% of its workHematology: 4 fractional works · 1.3% of its workObstetrics and Gynecology: 4 fractional works · 1.3% of its workReproductive Medicine: 4 fractional works · 1.2% of its workPathology and Forensic Medicine: 3 fractional works · 0.9% of its workCritical Care and Intensive Care Medicine: 3 fractional works · 0.8% of its workNephrology: 2 fractional works · 0.6% of its workAnesthesiology and Pain Medicine: 2 fractional works · 0.6% of its workImmunology and Allergy: 2 fractional works · 0.5% of its workOphthalmology: 2 fractional works · 0.5% of its workPharmacology: 1 fractional works · 0.4% of its workUrology: 1 fractional works · 0.3% of its workHealth Informatics: 1 fractional works · 0.3% of its workGeriatrics and Gerontology: 1 fractional works · 0.3% of its workRehabilitation: 1 fractional works · 0.3% of its workGastroenterology: 1 fractional works · 0.2% of its workInternal Medicine: 1 fractional works · 0.2% of its workOtorhinolaryngology: 1 fractional works · 0.2% of its workComplementary and alternative medicine: 1 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.5% of its workHealth Professions: 28 fractional works · 8.0% of its workGeneral Health Professions: 14 fractional works · 4.0% of its workEmergency Medical Services: 4 fractional works · 1.2% of its workSpeech and Hearing: 4 fractional works · 1.1% of its workRadiological and Ultrasound Technology: 2 fractional works · 0.5% of its workPharmacy: 1 fractional works · 0.4% of its workOccupational Therapy: 1 fractional works · 0.2% of its workComplementary and Manual Therapy: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.3% of its workNursing: 3 fractional works · 1.0% of its workNutrition and Dietetics: 3 fractional works · 0.9% of its workSmaller subfields together: 0 fractional works · 0.1% of its workDentistry: 1 fractional works · 0.3% of its workLife Sciences: 53 fractional works · 15.3% of its workBiochemistry, Genetics and Molecular Biology: 35 fractional works · 10.2% of its workGenetics: 17 fractional works · 4.8% of its workMolecular Biology: 11 fractional works · 3.3% of its workClinical Biochemistry: 2 fractional works · 0.6% of its workCancer Research: 1 fractional works · 0.4% of its workCell Biology: 1 fractional works · 0.4% of its workSmaller subfields together: 3 fractional works · 0.7% of its workNeuroscience: 9 fractional works · 2.6% of its workCognitive Neuroscience: 4 fractional works · 1.2% of its workCellular and Molecular Neuroscience: 3 fractional works · 0.7% of its workDevelopmental Neuroscience: 1 fractional works · 0.3% of its workNeurology: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.3% of its workImmunology and Microbiology: 5 fractional works · 1.6% of its workImmunology: 3 fractional works · 0.7% of its workMicrobiology: 1 fractional works · 0.3% of its workParasitology: 1 fractional works · 0.3% of its workApplied Microbiology and Biotechnology: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workAgricultural and Biological Sciences: 3 fractional works · 0.7% of its workFood Science: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.3% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.2% of its workSocial Sciences: 29 fractional works · 8.3% of its workPsychology: 14 fractional works · 4.1% of its workClinical Psychology: 8 fractional works · 2.2% of its workApplied Psychology: 3 fractional works · 0.8% of its workSocial Psychology: 2 fractional works · 0.5% of its workExperimental and Cognitive Psychology: 2 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workSocial Sciences: 10 fractional works · 2.8% of its workSociology and Political Science: 4 fractional works · 1.1% of its workEducation: 2 fractional works · 0.6% of its workHealth: 2 fractional works · 0.5% of its workGender Studies: 2 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.2% of its workBusiness, Management and Accounting: 2 fractional works · 0.6% of its workEconomics, Econometrics and Finance: 2 fractional works · 0.6% of its workEconomics and Econometrics: 2 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workArts and Humanities: 1 fractional works · 0.2% of its workDecision Sciences: 0 fractional works · 0.1% of its workPhysical Sciences: 11 fractional works · 3.2% of its workEngineering: 5 fractional works · 1.5% of its workBiomedical Engineering: 5 fractional works · 1.4% of its workSmaller subfields together: 1 fractional works · 0.2% of its workEnvironmental Science: 2 fractional works · 0.5% of its workEcology: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workComputer Science: 2 fractional works · 0.5% 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 · 0.0% of its workPhysics and Astronomy: 1 fractional works · 0.2% of its workChemistry: 0 fractional works · 0.1% of its workMathematics: 0 fractional works · 0.1% of its workEnergy: 0 fractional works · 0.0% of its workALL ITS WORKNational Hospital346fractional works, 2022-now
Life Sciences15%Physical Sciences3%Health Sciences73%Social Sciences8%

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 25 fields, with their numbers
    1. Medicine22163.9%
    2. Health Professions288.0%
    3. Nursing31.0%
    4. Dentistry10.3%
    5. Veterinary00.0%
    1. Biochemistry, Genetics and Molecular Biology3510.2%
    2. Neuroscience92.6%
    3. Immunology and Microbiology51.6%
    4. Agricultural and Biological Sciences30.7%
    5. Pharmacology, Toxicology and Pharmaceutics10.2%
    1. Psychology144.1%
    2. Social Sciences102.8%
    3. Business, Management and Accounting20.6%
    4. Economics, Econometrics and Finance20.6%
    5. Arts and Humanities10.2%
    6. Decision Sciences00.1%
    1. Engineering51.5%
    2. Environmental Science20.5%
    3. Computer Science20.5%
    4. Materials Science10.3%
    5. Physics and Astronomy10.2%
    6. Chemistry00.1%
    7. Mathematics00.1%
    8. Energy00.0%
    9. Chemical Engineering00.0%
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: 0.15× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.90× its world share, 35 worksBiochemistry, Geneti…Immunology and Microbiology: 1.57× its world share, 6 worksImmunology and Micro…Neuroscience: 1.62× its world share, 9 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.50× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 0.02× its world share, 0 worksChemical EngineeringChemistry: 0.07× its world share, 0 worksChemistryComputer Science: 0.06× its world share, 2 worksComputer ScienceEnergy: 0.05× its world share, 0 worksEnergyEngineering: 0.10× its world share, 5 worksEngineeringEnvironmental Science: 0.10× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.08× its world share, 1 worksMaterials ScienceMathematics: 0.05× its world share, 0 worksMathematicsPhysics and Astronomy: 0.10× its world share, 1 worksPhysics and AstronomyDentistry: 0.58× its world share, 1 worksDentistryHealth Professions: 3.05× its world share, 28 worksHealth ProfessionsMedicine: 3.33× its world share, 221 worksMedicineNursing: 1.98× its world share, 3 worksNursingVeterinary: 0.10× its world share, 0 worksVeterinaryArts and Humanities: 0.08× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.18× its world share, 2 worksBusiness, Management…Decision Sciences: 0.06× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.27× its world share, 2 worksEconomics, Econometr…Psychology: 1.34× its world share, 14 worksPsychologySocial Sciences: 0.22× its world share, 10 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.3×. Every wedge is a field page.

All 25 fields, with their numbers
  1. Medicine3.33×221 works
  2. Health Professions3.05×28 works
  3. Nursing1.98×3 works
  4. Biochemistry, Genetics and Molecular Biology1.90×35 works
  5. Neuroscience1.62×9 works
  6. Immunology and Microbiology1.57×6 works
  7. Psychology1.34×14 works
  8. Dentistry0.58×1 works
  9. Pharmacology, Toxicology and Pharmaceutics0.50×1 works
  10. Economics, Econometrics and Finance0.27×2 works
  11. Social Sciences0.22×10 works
  12. Business, Management and Accounting0.18×2 works
  13. Agricultural and Biological Sciences0.15×2 works
  14. Engineering0.10×5 works
  15. Environmental Science0.10×2 works
  16. Physics and Astronomy0.10×1 works
  17. Veterinary0.10×0 works
  18. Materials Science0.08×1 works
  19. Arts and Humanities0.08×1 works
  20. Chemistry0.07×0 works
  21. Computer Science0.06×2 works
  22. Decision Sciences0.06×0 works
  23. Energy0.05×0 works
  24. Mathematics0.05×0 works
  25. Chemical Engineering0.02×0 works

Who are the top researchers at National Hospital?

Ranked on the quality score, F Vartdal, Knut P. Nordal and Yngve Løyning lead among researchers whose main affiliation is National Hospital.

  1. 1 F Vartdal India · #3,022,622 worldwide 1.1k citations · 15 works
  2. 2 Knut P. Nordal India · #4,142,511 worldwide 2.1k citations · 52 works
  3. 3 Yngve Løyning India · #4,192,163 worldwide 1.2k citations · 42 works
  4. 4 Anne Kirsti Myrvang Høgåsen India · #4,566,650 worldwide 576 citations · 15 works
  5. 5 B Guldvog India · #5,247,825 worldwide 582 citations · 25 works
  6. 6 James Collier India · #5,434,988 worldwide 287 citations · 30 works
  7. 7 Kenneth Purvis India · #5,774,725 worldwide 3.9k citations · 156 works
  8. 8 Bjørg Lundby India · #5,790,196 worldwide 588 citations · 17 works
  9. 9 Einfrid Åm Holen India · #5,881,856 worldwide 589 citations · 18 works
  10. 10 Steinar Tjønneland India · #5,964,843 worldwide 363 citations · 27 works
All ranked researchers at National Hospital

What are the most cited papers from National Hospital?

The most cited paper from National Hospital is "Dementia: The Estimation of Premorbid Intelligence Levels Using the New Adult Reading Test" (Hazel E. Nelson, Anne O’Connell, 1978), with 1,128 citations. Next come "THE PATHOGENESIS OF THE SPINAL CORD DISORDER ASSOCIATED WITH CERVICAL SPONDYLOSIS" (901) and "Amnesic Syndrome: Consolidation or Retrieval?" (866).

Most cited papers
#PaperReleasedCitations
1 Dementia: The Estimation of Premorbid Intelligence Levels Using the New Adult Reading Test Hazel E. Nelson, Anne O’Connell · Cortex Open access Jun 1978 1,128
2 THE PATHOGENESIS OF THE SPINAL CORD DISORDER ASSOCIATED WITH CERVICAL SPONDYLOSIS S. NURJCK · Brain 1972 901
3 Amnesic Syndrome: Consolidation or Retrieval? Elizabeth K. Warrington, Lawrence Weiskrantz · Nature Nov 1970 866
4 Avian Influenza A (H5N1) in 10 Patients in Vietnam Tran Tinh Hien et al. · New England Journal of Medicine Open access 17 Mar 2004 843
5 Relation between semen quality and fertility: a population-based study of 430 first-pregnancy planners Jens Peter Bonde, Erik Ernst, Tina Kold Jensen et al. · The Lancet Oct 1998 793
All 60 most cited papers, with filters and sorting

Which keywords describe research at National Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Inflammation, Treatment, Diagnosis, Genetic Mutations, Genetics, Management and Neurodevelopmental Outcomes.

▲ 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. Epidemiology42▲ 3.1×95 topics
  2. Inflammation20▲ 2.7×50 topics
  3. Treatment16▲ 3.8×37 topics
  4. Diagnosis14▲ 4.3×32 topics
  5. Public Health11▲ 2.2×34 topics
  6. Management10▲ 3.8×21 topics
  7. Genetics10▲ 4.2×19 topics
  8. Risk Factors10▲ 2.6×26 topics
  9. Genetic Mutations10▲ 6.3×20 topics
  10. Cardiovascular Disease9▲ 2.4×29 topics
  11. Mental Health9▲ 1.87×23 topics
  12. Quality of Life9▲ 1.72×32 topics
  13. Surgical Management7▲ 5.2×16 topics
  14. Immunotherapy7▲ 2.8×15 topics
  15. Adolescents7▲ 5.3×8 topics
  16. Neurodevelopmental Outcomes7▲ 10×6 topics
  17. Chemotherapy7▲ 2.7×16 topics
  18. Complications7▲ 3.8×13 topics
  19. Obesity6▲ 2.5×15 topics
  20. Guidelines6▲ 3.8×11 topics
  21. Neurological Disorders6▲ 3.1×16 topics
  22. Mortality6▲ 3.0×12 topics
  23. Children5▲ 6.5×5 topics
  24. Drug Resistance5▲ 5.3×5 topics
  25. Cardiovascular Risk5▲ 4.7×8 topics
  26. Clinical Outcomes5▲ 6.7×6 topics
  27. Cognitive Impairment5▲ 5.7×10 topics
  28. Prenatal Diagnosis5▲ 10.0×6 topics
  29. Critical Care5▲ 5.8×8 topics
  30. Health Outcomes5▲ 5.2×7 topics
  31. Neurobiology5▲ 5.4×6 topics
  32. Neuroimaging5▲ 5.0×9 topics
  33. Patient Satisfaction5▲ 4.5×6 topics
  34. Genetic Variants5▲ 7.5×6 topics
  35. Pulmonary Hypertension5▲ 9.6×3 topics
  36. Resuscitation4▲ 9.8×4 topics
  37. Clinical Management4▲ 7.0×8 topics
  38. Neural Crest4▲ 30×2 topics
  39. Epilepsy4▲ 9.6×4 topics
  40. Neurodevelopmental Disorders4▲ 8.2×6 topics

Which research topics does National Hospital publish most on?

By volume in 2022-now: Hemoglobinopathies and Related Disorders, Emergency and Acute Care Studies, Adolescent and Pediatric Healthcare and Genomics and Rare Diseases.

Hemoglobinopathies and R…3Hemoglobinopathies and Related Disorders: 3 fractional worksEmergency and Acute Care…3Emergency and Acute Care Studies: 3 fractional worksAdolescent and Pediatric Healthcare: 3 fractional worksGenomics and Rare Diseases: 3 fractional worksCongenital Heart Disease…2Congenital Heart Disease Studies: 2 fractional worksEpilepsy research and treatment: 2 fractional worksCraniofacial Disorders and Treatments: 2 fractional worksFolate and B Vitamins Re…2Folate and B Vitamins Research: 2 fractional worksCardiac Arrhythmias and Treatments: 2 fractional worksCardiovascular Function and Risk Factors: 2 fractional works
GeneticsEmergency MedicineSpeech and HearingEpidemiology3 others

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

  1. 1 Hemoglobinopathies and Related Disorders Genetics 3 works
  2. 2 Emergency and Acute Care Studies Emergency Medicine 3 works
  3. 3 Adolescent and Pediatric Healthcare Speech and Hearing 3 works
  4. 4 Genomics and Rare Diseases Genetics 3 works
  5. 5 Congenital Heart Disease Studies Epidemiology 2 works
  6. 6 Epilepsy research and treatment Psychiatry and Mental health 2 works
  7. 7 Craniofacial Disorders and Treatments Genetics 2 works
  8. 8 Folate and B Vitamins Research Rheumatology 2 works
  9. 9 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 2 works
  10. 10 Cardiovascular Function and Risk Factors Cardiology and Cardiovascular Medicine 2 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 available43.5%not open56.5%

World: 40% of research is openly available.

with international co-authors40.6%domestic only59.4%

World: 18% is written across borders.

How has National Hospital's research output changed?

Output in 2022-2025 was 94% 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 National Hospital as a percentage of every work published that year, 0.0014% in 2024.

still counting0.0050%0.010%0.015%National Hospital0.0015% in 202519801990200020102020

Fractional works of National 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 counting5%10%15%all institutions10.0% in 2025National Hospital3.9% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 11.5% in 2002.

Other research institutions in Kozhikode

All research institutions in Kozhikode

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National Hospital on Science Explorer

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