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Hospital / health system · Madrid · Spain

Hospital General Universitario Gregorio Marañón

In research, Hospital General Universitario Gregorio Marañón stands highest in Medicine (#832 of 10,443 worldwide), Health Sciences (#1,204 of 11,982 worldwide) and Life Sciences (#2,331 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Critical Care and Intensive Care Medicine and Hepatology — Critical Care and Intensive Care Medicine is 8.3× its share of world research.

comunidad.madrid/hospital/gregoriomaranonROR OpenAlex
World rank, 2022–2025
#4,056
of 28,054 · #3,720 all time
Rank in Spain
#100
of 658
Research works
11k
▲ 10% vs 2013–17
Citations
149k
13.9 per fractional work
Top-10% rate
9.8%
record average 16.5%
Open access
35%
world 28%

What is Hospital General Universitario Gregorio Marañón 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 #832 of 10,443 9.0%1,240 #836
Health SciencesDomain #1,204 of 11,982 9.1%1,329 #1040
Life SciencesDomain #2,331 of 7,800 12.6%187 #2015
SurgerySubfield #751 of 1,816 8.2%198 #815
Pulmonary and Respiratory MedicineSubfield #765 of 1,144 7.9%132 #876
EpidemiologySubfield #669 of 976 10.4%100 #735
Social SciencesDomain #7,212 of 10,521 12.9%89 #9582
Biochemistry, Genetics and Molecular BiologyField #2,597 of 3,579 12.1%105 #2391
Cardiology and Cardiovascular MedicineSubfield #600 of 738 8.9%88 #404
Health ProfessionsField #1,648 of 1,928 10.0%67 #1848

Each strip is that field’s whole ranked pool, with the notch where Hospital General Universitario Gregorio Marañón 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#836 #832
  2. Health Sciences#1,040 #1,204
  3. Life Sciences#2,015 #2,331
  4. Surgery#815 #751
  5. Pulmonary and Respiratory Medicine#876 #765
  6. Epidemiology#735 #669
  7. Social Sciences#9,582 #7,212
  8. Biochemistry, Genetics and Molecular Biology#2,391 #2,597
  9. Cardiology and Cardiovascular Medicine#404 #600
  10. Health Professions#1,848 #1,648
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 Hospital General Universitario Gregorio Marañón specialise in?

Where its research is concentrated relative to its size: Critical Care and Intensive Care Medicine takes 8.3× the share of its output that it takes of world research.

  1. Critical Care and Intensive Care MedicineSubfield · 20.4 works8.3×
  2. HepatologySubfield · 23.1 works7.2×
← 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: 0.05× its world share, 4 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.19× its world share, 104 worksBiochemistry, Geneti…Immunology and Microbiology: 2.82× its world share, 47 worksImmunology and Micro…Neuroscience: 1.07× its world share, 29 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.63× its world share, 4 worksPharmacology, Toxico…Chemical Engineering: 0.04× its world share, 0 worksChemical EngineeringChemistry: 0.13× its world share, 4 worksChemistryComputer Science: 0.05× its world share, 6 worksComputer ScienceEarth and Planetary Sciences: 0.02× its world share, 1 worksEarth and Planetary …Energy: 0.01× its world share, 0 worksEnergyEngineering: 0.10× its world share, 24 worksEngineeringEnvironmental Science: 0.07× its world share, 6 worksEnvironmental ScienceMaterials Science: 0.04× its world share, 2 worksMaterials ScienceMathematics: 0.09× its world share, 2 worksMathematicsPhysics and Astronomy: 0.06× its world share, 2 worksPhysics and AstronomyDentistry: 0.92× its world share, 7 worksDentistryHealth Professions: 1.53× its world share, 67 worksHealth ProfessionsMedicine: 3.90× its world share, 1,240 worksMedicineNursing: 1.62× its world share, 13 worksNursingVeterinary: 1.05× its world share, 2 worksVeterinaryArts and Humanities: 0.20× its world share, 10 worksArts and HumanitiesBusiness, Management and Accounting: 0.05× its world share, 3 worksBusiness, Management…Decision Sciences: 0.09× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.26× its world share, 9 worksEconomics, Econometr…Psychology: 0.90× its world share, 45 worksPsychologySocial Sciences: 0.10× its world share, 21 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.9×. Every wedge is a field page.

Who are the top researchers at Hospital General Universitario Gregorio Marañón?

Ranked on the composite score, Héctor Bueno, Patricia Muñóz and Miguel Martín lead among researchers whose main affiliation is Hospital General Universitario Gregorio Marañón.

  1. 1 Héctor Bueno Spain · #612 worldwide 3k citations · 105 works
  2. 2 Patricia Muñóz Spain · #10,258 worldwide 1k citations · 131 works
  3. 3 Miguel Martín Spain · #30,184 worldwide 787 citations · 129 works
  4. 4 Francisco Fernández‐Avilés Spain · #49,638 worldwide 589 citations · 119 works
  5. 5 Cristina Cuerda Spain · #61,014 worldwide 136 citations · 34 works
  6. 6 Rafael Bañares Spain · #65,366 worldwide 308 citations · 79 works
  7. 7 Fernando Valderrábano Spain · #82,597 worldwide 196 citations · 37 works
  8. 8 Andrés J. Muñoz Martín Spain · #89,635 worldwide 199 citations · 37 works
  9. 9 Javier López Jiménez Spain · #102,645 worldwide 153 citations · 55 works
  10. 10 Enrique Gutiérrez Spain · #118,092 worldwide 162 citations · 31 works
All ranked researchers at Hospital General Universitario Gregorio Marañón

Which keywords describe research at Hospital General Universitario Gregorio Marañón?

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

▲ 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. Epidemiology238▲ 3.6×127 topics
  2. Treatment110▲ 5.5×49 topics
  3. Diagnosis107▲ 7.0×41 topics
  4. Inflammation87▲ 2.5×71 topics
  5. Management69▲ 5.3×30 topics
  6. Quality of Life64▲ 2.7×47 topics
  7. Chemotherapy55▲ 4.8×24 topics
  8. Clinical Practice Guidelines54▲ 6.0×14 topics
  9. Risk Factors53▲ 2.9×33 topics
  10. Guidelines49▲ 6.4×12 topics
  11. Immunotherapy44▲ 3.8×18 topics
  12. Cardiovascular Disease40▲ 2.2×34 topics
  13. Complications37▲ 4.5×17 topics
  14. Heart Failure36▲ 5.1×13 topics
  15. Genetic Mutations35▲ 4.9×23 topics
  16. Prognostic Factors35▲ 4.9×14 topics
  17. Metabolic Syndrome34▲ 2.6×21 topics
  18. Genetics34▲ 2.9×23 topics
  19. Immune Response33▲ 3.6×20 topics
  20. Thrombosis30▲ 6.5×7 topics
  21. Mortality30▲ 3.1×13 topics
  22. Autoantibodies29▲ 7.6×8 topics
  23. Pathogenesis29▲ 3.4×23 topics
  24. Surgical Management29▲ 4.3×20 topics
  25. Critical Care27▲ 7.2×8 topics
  26. Echocardiography27▲ 6.0×8 topics
  27. Surgery27▲ 4.6×12 topics
  28. Global Burden26▲ 2.9×12 topics
  29. Prophylaxis25▲ 12×4 topics
  30. Prognosis23▲ 4.2×9 topics
  31. Children23▲ 5.9×7 topics
  32. Pathophysiology22▲ 4.4×10 topics
  33. Rituximab21▲ 8.6×4 topics
  34. Immunosuppressive Therapy20▲ 6.6×8 topics
  35. Lymphoma20▲ 7.5×4 topics
  36. Mechanical Ventilation20▲ 10×2 topics
  37. Healthcare-Associated Infections18▲ 9.2×5 topics
  38. Postoperative Complications18▲ 8.1×4 topics
  39. Bacteremia17▲ 14×3 topics
  40. Graft Survival16▲ 12×3 topics

Which research topics does Hospital General Universitario Gregorio Marañón publish most on?

By volume in 2022–2025: Venous Thromboembolism Diagnosis and Management, Cardiac, Anesthesia and Surgical Outcomes, CAR-T cell therapy research and COVID-19 Clinical Research Studies.

Venous Thromboembolism D…13Venous Thromboembolism Diagnosis and Management: 13 fractional worksCardiac, Anesthesia and …12Cardiac, Anesthesia and Surgical Outcomes: 12 fractional worksCAR-T cell therapy research: 12 fractional worksCOVID-19 Clinical Resear…11COVID-19 Clinical Research Studies: 11 fractional worksRespiratory Support and …11Respiratory Support and Mechanisms: 11 fractional worksLiver Disease and Transplantation: 10 fractional worksNeonatal Respiratory Health Research: 9 fractional worksTracheal and airway diso…9Tracheal and airway disorders: 9 fractional worksChronic Obstructive Pulmonary Disease (COPD) Research: 9 fractional worksCardiac Valve Diseases and Treatments: 9 fractional works
Internal MedicineCardiology and Cardiovascular MedicineOncologyInfectious Diseases2 others

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

  1. 1 Venous Thromboembolism Diagnosis and Management Internal Medicine 13 works
  2. 2 Cardiac, Anesthesia and Surgical Outcomes Cardiology and Cardiovascular Medicine 12 works
  3. 3 CAR-T cell therapy research Oncology 12 works
  4. 4 COVID-19 Clinical Research Studies Infectious Diseases 11 works
  5. 5 Respiratory Support and Mechanisms Pulmonary and Respiratory Medicine 11 works
  6. 6 Liver Disease and Transplantation Hepatology 10 works
  7. 7 Neonatal Respiratory Health Research Pulmonary and Respiratory Medicine 9 works
  8. 8 Tracheal and airway disorders Pulmonary and Respiratory Medicine 9 works
  9. 9 Chronic Obstructive Pulmonary Disease (COPD) Research Pulmonary and Respiratory Medicine 9 works
  10. 10 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 9 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 available35.2%not open64.8%

World: 28% of research is openly available.

with international co-authors10.1%domestic only89.9%

World: 19% is written across borders.

How has Hospital General Universitario Gregorio Marañón's research output changed?

Output in 2018–2022 was 10% 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 Madrid

All research institutions in Madrid

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.