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Hospital / health system · Herne · Germany

St. Anna Hospital

In research, St. Anna Hospital stands highest in Health Sciences (#10,179 of 11,982 worldwide), 2022–2025.

annahospital.deROR OpenAlex
World rank, 2022–2025
#21,589
of 28,054 · #17,565 all time
Rank in Germany
#845
of 1,178
Research works
597
▼ 13% vs 2013–17
Citations
16k
26.8 per fractional work
Top-10% rate
10.0%
record average 16.5%
Open access
38%
world 28%

What is St. Anna 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
Health SciencesDomain #10,179 of 11,982 8.0%62 #6344

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

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: 0.56× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.56× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 2.68× its world share, 2 worksImmunology and Micro…Neuroscience: 1.06× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.76× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.02× its world share, 0 worksChemistryComputer Science: 0.05× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 0.07× its world share, 0 worksEarth and Planetary …Engineering: 0.12× its world share, 1 worksEngineeringEnvironmental Science: 0.21× its world share, 1 worksEnvironmental SciencePhysics and Astronomy: 0.04× its world share, 0 worksPhysics and AstronomyDentistry: 0.88× its world share, 0 worksDentistryHealth Professions: 0.94× its world share, 2 worksHealth ProfessionsMedicine: 3.92× its world share, 58 worksMedicineNursing: 3.51× its world share, 1 worksNursingVeterinary: 3.34× its world share, 0 worksVeterinaryArts and Humanities: 0.51× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.41× its world share, 1 worksBusiness, Management…Psychology: 0.55× its world share, 1 worksPsychologySocial Sciences: 0.12× its world share, 1 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 St. Anna Hospital?

Ranked on the composite score, Klaus Kisters and B. Gremmler lead among researchers whose main affiliation is St. Anna Hospital.

  1. 1 Klaus Kisters Germany · #1,007,698 worldwide 59 citations · 119 works
  2. 2 B. Gremmler Germany · #1,323,079 worldwide 0 citations · 19 works
All ranked researchers at St. Anna Hospital

Which keywords describe research at St. Anna Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Complications, Inflammation, Clinical Practice Guidelines, Degenerative Disc Disease, Surgical Treatment, Low Back Pain and Mortality.

▲ 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. Epidemiology11▲ 3.6×56 topics
  2. Inflammation6▲ 3.4×36 topics
  3. Complications4▲ 9.6×12 topics
  4. Cardiovascular Disease3▲ 3.8×20 topics
  5. Quality of Life3▲ 2.8×24 topics
  6. Clinical Practice Guidelines3▲ 7.4×12 topics
  7. Degenerative Disc Disease3▲ 40×2 topics
  8. Diagnosis3▲ 4.0×17 topics
  9. Surgical Treatment3▲ 19×4 topics
  10. Mortality3▲ 6.2×9 topics
  11. Management3▲ 4.4×17 topics
  12. Guidelines2▲ 6.9×10 topics
  13. Low Back Pain2▲ 19×3 topics
  14. Risk Factors2▲ 3.0×13 topics
  15. Survival Analysis2▲ 11×5 topics
  16. Clinical Outcomes2▲ 14×4 topics
  17. Immunotherapy2▲ 4.1×7 topics
  18. Obesity2▲ 3.9×13 topics
  19. Metabolic Syndrome2▲ 3.5×12 topics
  20. Spinal Fusion2▲ 29×2 topics
  21. Surgery2▲ 8.1×6 topics
  22. Clinical Trials2▲ 4.1×9 topics
  23. Spinal Surgery2▲ 35×2 topics
  24. Surgical Management2▲ 6.7×11 topics
  25. Intervertebral Disc2▲ 38×1 topic
  26. Lumbar Disc Degeneration2▲ 38×1 topic
  27. Genetic Mutations2▲ 5.7×9 topics
  28. Neoadjuvant Therapy2▲ 11×4 topics
  29. Preoperative Chemoradiotherapy2▲ 29×2 topics
  30. Heart Failure2▲ 5.1×7 topics
  31. Postoperative Complications2▲ 15×3 topics
  32. Chronic Pain1▲ 8.5×4 topics
  33. Health-related Quality of Life1▲ 7.7×4 topics
  34. Prostate Cancer1▲ 14×3 topics
  35. Body Image1▲ 22×3 topics
  36. Dysphagia1▲ 28×2 topics
  37. Endoscopic Resection1▲ 17×2 topics
  38. Gastric Cancer1▲ 14×3 topics
  39. Radiation Therapy1▲ 12×3 topics
  40. Revision Surgery1▲ 13×2 topics

Which research topics does St. Anna Hospital publish most on?

By volume in 2022–2025: Spine and Intervertebral Disc Pathology, Colorectal Cancer Surgical Treatments, Consumer Perception and Purchasing Behavior and Total Knee Arthroplasty Outcomes.

Spine and Intervertebral…2Spine and Intervertebral Disc Pathology: 2 fractional worksColorectal Cancer Surgic…1Colorectal Cancer Surgical Treatments: 1 fractional worksConsumer Perception and Purchasing Behavior: 1 fractional worksTotal Knee Arthroplasty Outcomes: 1 fractional worksCervical and Thoracic Myelopathy: 1 fractional worksKnee injuries and reconstruction techniques: 1 fractional worksCardiac, Anesthesia and …1Cardiac, Anesthesia and Surgical Outcomes: 1 fractional worksOvarian function and disorders: 1 fractional worksPelvic and Acetabular Injuries: 1 fractional worksFrailty in Older Adults1Frailty in Older Adults: 1 fractional works
Pathology and Forensic MedicineOncologyMarketingSurgery3 others

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

  1. 1 Spine and Intervertebral Disc Pathology Pathology and Forensic Medicine 2 works
  2. 2 Colorectal Cancer Surgical Treatments Oncology 1 works
  3. 3 Consumer Perception and Purchasing Behavior Marketing 1 works
  4. 4 Total Knee Arthroplasty Outcomes Surgery 1 works
  5. 5 Cervical and Thoracic Myelopathy Surgery 1 works
  6. 6 Knee injuries and reconstruction techniques Surgery 1 works
  7. 7 Cardiac, Anesthesia and Surgical Outcomes Cardiology and Cardiovascular Medicine 1 works
  8. 8 Ovarian function and disorders Reproductive Medicine 1 works
  9. 9 Pelvic and Acetabular Injuries Surgery 1 works
  10. 10 Frailty in Older Adults Geriatrics and Gerontology 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 available38.3%not open61.7%

World: 28% of research is openly available.

with international co-authors50.3%domestic only49.7%

World: 19% is written across borders.

How has St. Anna Hospital's research output changed?

Output in 2018–2022 was 13% lower 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 Herne

All research institutions in Herne

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.