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Hospital / health system · London · United Kingdom

Croydon University Hospital

In research, Croydon University Hospital stands highest in Medicine (#7,361 of 10,443 worldwide) and Health Sciences (#8,920 of 11,982 worldwide), 2022–2025. Relative to its size it is most specialised in Surgery — Surgery is 9.2× its share of world research.

croydonhealthservices.nhs.uk/patients-visitors/Croydon-University-Hospital.htmROR OpenAlex
World rank, 2022–2025
#23,751
of 28,054 · #19,710 all time
Rank in United Kingdom
#898
of 1,094
Research works
1.2k
▲ 26% vs 2013–17
Citations
21k
17.5 per fractional work
Top-10% rate
10.2%
record average 16.5%
Open access
38%
world 28%

What is Croydon 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 #7,361 of 10,443 11.7%135 #5464
Health SciencesDomain #8,920 of 11,982 10.8%153 #6175

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

What does Croydon University Hospital specialise in?

Where its research is concentrated relative to its size: Surgery takes 9.2× the share of its output that it takes of world research.

  1. SurgerySubfield · 40.0 works9.2×
← 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.

Biochemistry, Genetics and Molecular Biology: 0.67× its world share, 7 worksBiochemistry, Geneti…Immunology and Microbiology: 1.19× its world share, 2 worksImmunology and Micro…Neuroscience: 0.60× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.51× its world share, 0 worksPharmacology, Toxico…Computer Science: 0.16× its world share, 2 worksComputer ScienceEngineering: 0.10× its world share, 3 worksEngineeringEnvironmental Science: 0.06× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.06× its world share, 0 worksMaterials SciencePhysics and Astronomy: 0.01× its world share, 0 worksPhysics and AstronomyDentistry: 3.01× its world share, 3 worksDentistryHealth Professions: 2.75× its world share, 14 worksHealth ProfessionsMedicine: 3.78× its world share, 135 worksMedicineNursing: 1.50× its world share, 1 worksNursingArts and Humanities: 0.16× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.50× its world share, 3 worksBusiness, Management…Decision Sciences: 0.88× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.62× its world share, 2 worksEconomics, Econometr…Psychology: 0.59× its world share, 3 worksPsychologySocial Sciences: 0.20× its world share, 5 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.

Who are the top researchers at Croydon University Hospital?

Ranked on the composite score, Abdul H. Sultan, Ranee Thakar and Sanjay Gupta lead among researchers whose main affiliation is Croydon University Hospital.

  1. 1 Abdul H. Sultan United Kingdom · #38,876 worldwide 223 citations · 44 works
  2. 2 Ranee Thakar United Kingdom · #62,150 worldwide 152 citations · 49 works
  3. 3 Sanjay Gupta United Kingdom · #1,036,058 worldwide 35 citations · 16 works
All ranked researchers at Croydon University Hospital

Which keywords describe research at Croydon University Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Complications, Quality of Life, Surgical Treatment, Rehabilitation, Mortality, Guidelines and Surgical Management.

▲ 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. Epidemiology29▲ 4.0×55 topics
  2. Quality of Life16▲ 5.8×26 topics
  3. Complications15▲ 16×16 topics
  4. Surgical Treatment11▲ 29×6 topics
  5. Rehabilitation10▲ 14×7 topics
  6. Mortality9▲ 8.7×10 topics
  7. Guidelines9▲ 9.8×9 topics
  8. Surgical Management8▲ 11×11 topics
  9. Treatment8▲ 3.5×25 topics
  10. Urinary Incontinence7▲ 46×2 topics
  11. Pelvic Floor Dysfunction7▲ 76×1 topic
  12. Pelvic Organ Prolapse7▲ 76×1 topic
  13. Primary Care7▲ 9.4×9 topics
  14. Diagnosis6▲ 3.7×18 topics
  15. COVID-196▲ 2.3×13 topics
  16. Risk Factors6▲ 2.8×19 topics
  17. Management5▲ 3.7×15 topics
  18. Postoperative Complications5▲ 21×3 topics
  19. Clinical Practice Guidelines5▲ 5.0×12 topics
  20. Surgery5▲ 7.2×10 topics
  21. Chronic Pain5▲ 11×4 topics
  22. Prevention5▲ 5.9×11 topics
  23. Patient Satisfaction4▲ 7.3×6 topics
  24. Laparoscopic Repair4▲ 54×2 topics
  25. Cardiac Risk4▲ 26×1 topic
  26. Perioperative4▲ 26×1 topic
  27. Radiotherapy4▲ 5.2×9 topics
  28. Clinical Guidelines4▲ 6.8×7 topics
  29. Fistulas4▲ 56×1 topic
  30. Hemorrhoids4▲ 105×1 topic
  31. Hernia Repair4▲ 72×1 topic
  32. Mesh Techniques4▲ 72×1 topic
  33. Chronic Disease Management4▲ 9.9×4 topics
  34. Endoscopic Stenting3▲ 39×1 topic
  35. Esophageal Perforation3▲ 39×1 topic
  36. Children3▲ 7.5×6 topics
  37. Maternal Outcomes3▲ 23×2 topics
  38. Perinatal Outcomes3▲ 23×2 topics
  39. Shoulder Function3▲ 19×2 topics
  40. Quality Improvement3▲ 8.4×7 topics

Which research topics does Croydon University Hospital publish most on?

By volume in 2022–2025: Pelvic floor disorders treatments, Cardiac, Anesthesia and Surgical Outcomes, Hernia repair and management and Anorectal Disease Treatments and Outcomes.

Pelvic floor disorders treatments: 7 fractional worksCardiac, Anesthesia and Surgical Outcomes: 4 fractional worksHernia repair and manage…4Hernia repair and management: 4 fractional worksAnorectal Disease Treatm…4Anorectal Disease Treatments and Outcomes: 4 fractional worksEsophageal and GI Pathology: 3 fractional worksPelvic and Acetabular Injuries: 3 fractional worksMedical and Biological S…3Medical and Biological Sciences: 3 fractional worksShoulder Injury and Treatment: 2 fractional worksPharmaceutical Practices and Patient Outcomes: 2 fractional worksMaternal and Perinatal Health Interventions: 2 fractional works
RheumatologyCardiology and Cardiovascular MedicineSurgeryAnatomy2 others

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

  1. 1 Pelvic floor disorders treatments Rheumatology 7 works
  2. 2 Cardiac, Anesthesia and Surgical Outcomes Cardiology and Cardiovascular Medicine 4 works
  3. 3 Hernia repair and management Surgery 4 works
  4. 4 Anorectal Disease Treatments and Outcomes Surgery 4 works
  5. 5 Esophageal and GI Pathology Surgery 3 works
  6. 6 Pelvic and Acetabular Injuries Surgery 3 works
  7. 7 Medical and Biological Sciences Anatomy 3 works
  8. 8 Shoulder Injury and Treatment Surgery 2 works
  9. 9 Pharmaceutical Practices and Patient Outcomes Geriatrics and Gerontology 2 works
  10. 10 Maternal and Perinatal Health Interventions Obstetrics and Gynecology 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 available38.0%not open62.0%

World: 28% of research is openly available.

with international co-authors9.7%domestic only90.3%

World: 19% is written across borders.

How has Croydon University Hospital's research output changed?

Output in 2018–2022 was 26% 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 London

All research institutions in London

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.