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Hospital / health system · Omaha · United States

CHI Health

In research, CHI Health stands highest in Medicine (#6,597 of 8,541 worldwide) and Health Sciences (#7,841 of 9,902 worldwide), 2022-now. Relative to its size it is most specialised in Surgery (Surgery is 8.0× its share of world research).

chihealth.comROR OpenAlex
World rank, 2022-now
#19,648
of 22,385 · #28,097 all time
Rank in United States
#2,907
of 3,332
Research works
461
▲ 32% vs 2018-21
Citations
3.8k
8.2 per fractional work
Top-10% rate
6.2%
all institutions 10.0%
vs its own fields
0.86×
1.00× is exactly expected
Open access
52%
world 40%
International
29%
world 18%
CHI Health

What is CHI Health 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 #6,597 of 8,541 5.0%104 #10550
Health SciencesDomain #7,841 of 9,902 5.2%114 #12228

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

In 2022-now, 83% of research at CHI Health is in Health Sciences, 8% in Life Sciences. Its largest fields are Medicine (76%), Health Professions (5%), Biochemistry, Genetics and Molecular Biology (4%). It does 3.4× the world's share of Health Sciences.

Health Sciences: 132 fractional works · 83.0% of its workMedicine: 121 fractional works · 76.2% of its workSurgery: 30 fractional works · 18.7% of its workPulmonary and Respiratory Medicine: 14 fractional works · 9.0% of its workOncology: 10 fractional works · 6.2% of its workCardiology and Cardiovascular Medicine: 8 fractional works · 5.1% of its workEpidemiology: 8 fractional works · 4.9% of its workPublic Health, Environmental and Occupational Health: 4 fractional works · 2.7% of its workInfectious Diseases: 4 fractional works · 2.6% of its workHepatology: 4 fractional works · 2.4% of its workRheumatology: 3 fractional works · 2.0% of its workEmergency Medicine: 3 fractional works · 1.9% of its workPediatrics, Perinatology and Child Health: 3 fractional works · 1.6% of its workObstetrics and Gynecology: 3 fractional works · 1.6% of its workRadiology, Nuclear Medicine and Imaging: 3 fractional works · 1.6% of its workPathology and Forensic Medicine: 2 fractional works · 1.5% of its workNeurology: 2 fractional works · 1.5% of its workGastroenterology: 2 fractional works · 1.5% of its workPhysiology: 2 fractional works · 1.4% of its workGenetics: 2 fractional works · 1.0% of its workHematology: 1 fractional works · 0.9% of its workPsychiatry and Mental health: 1 fractional works · 0.8% of its workNephrology: 1 fractional works · 0.8% of its workRehabilitation: 1 fractional works · 0.8% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.7% of its workReproductive Medicine: 1 fractional works · 0.5% of its workDermatology: 1 fractional works · 0.5% of its workUrology: 1 fractional works · 0.5% of its workOrthopedics and Sports Medicine: 1 fractional works · 0.4% of its workOphthalmology: 1 fractional works · 0.4% of its workCritical Care and Intensive Care Medicine: 1 fractional works · 0.4% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.4% of its workGeriatrics and Gerontology: 1 fractional works · 0.3% of its workPharmacology: 1 fractional works · 0.3% of its workComplementary and alternative medicine: 0 fractional works · 0.3% of its workInternal Medicine: 0 fractional works · 0.3% of its workOtorhinolaryngology: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workHealth Professions: 8 fractional works · 5.2% of its workGeneral Health Professions: 3 fractional works · 2.1% of its workEmergency Medical Services: 2 fractional works · 0.9% of its workComplementary and Manual Therapy: 1 fractional works · 0.5% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 1 fractional works · 0.5% of its workRadiological and Ultrasound Technology: 1 fractional works · 0.4% of its workOccupational Therapy: 0 fractional works · 0.3% of its workSpeech and Hearing: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNursing: 2 fractional works · 1.2% of its workNutrition and Dietetics: 2 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.1% of its workDentistry: 1 fractional works · 0.4% of its workOral Surgery: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.1% of its workLife Sciences: 13 fractional works · 8.2% of its workBiochemistry, Genetics and Molecular Biology: 6 fractional works · 4.0% of its workMolecular Biology: 2 fractional works · 1.5% of its workGenetics: 2 fractional works · 1.0% of its workCancer Research: 1 fractional works · 0.6% of its workBiotechnology: 1 fractional works · 0.4% of its workEndocrinology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNeuroscience: 3 fractional works · 2.1% of its workCognitive Neuroscience: 1 fractional works · 0.5% of its workNeurology: 1 fractional works · 0.5% of its workEndocrine and Autonomic Systems: 1 fractional works · 0.4% of its workSensory Systems: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 2 fractional works · 1.4% of its workImmunology: 1 fractional works · 0.6% of its workParasitology: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.5% of its workAgricultural and Biological Sciences: 1 fractional works · 0.6% of its workFood Science: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workSocial Sciences: 9 fractional works · 5.8% of its workSocial Sciences: 4 fractional works · 2.2% of its workSociology and Political Science: 1 fractional works · 0.9% of its workHealth: 1 fractional works · 0.6% of its workGender Studies: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workPsychology: 3 fractional works · 2.1% of its workClinical Psychology: 2 fractional works · 1.1% of its workSocial Psychology: 1 fractional works · 0.6% of its workSmaller subfields together: 1 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 2 fractional works · 1.0% of its workEconomics and Econometrics: 2 fractional works · 1.0% of its workDecision Sciences: 0 fractional works · 0.3% of its workManagement Science and Operations Research: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workArts and Humanities: 0 fractional works · 0.2% of its workReligious studies: 0 fractional works · 0.2% of its workBusiness, Management and Accounting: 0 fractional works · 0.1% of its workPhysical Sciences: 5 fractional works · 3.0% of its workEngineering: 2 fractional works · 1.5% of its workBiomedical Engineering: 1 fractional works · 0.9% of its workAerospace Engineering: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workComputer Science: 1 fractional works · 0.9% of its workComputer Vision and Pattern Recognition: 1 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.0% of its workEnvironmental Science: 0 fractional works · 0.2% of its workMathematics: 0 fractional works · 0.2% of its workModeling and Simulation: 0 fractional works · 0.2% of its workChemistry: 0 fractional works · 0.1% of its workALL ITS WORKCHI Health159fractional works, 2022-now
Life Sciences8%Physical Sciences3%Health Sciences83%Social Sciences6%

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 21 fields, with their numbers
    1. Medicine12176.2%
    2. Health Professions85.2%
    3. Nursing21.2%
    4. Dentistry10.4%
    5. Veterinary00.1%
    1. Biochemistry, Genetics and Molecular Biology64.0%
    2. Neuroscience32.1%
    3. Immunology and Microbiology21.4%
    4. Agricultural and Biological Sciences10.6%
    5. Pharmacology, Toxicology and Pharmaceutics00.1%
    1. Social Sciences42.2%
    2. Psychology32.1%
    3. Economics, Econometrics and Finance21.0%
    4. Decision Sciences00.3%
    5. Arts and Humanities00.2%
    6. Business, Management and Accounting00.1%
    1. Engineering21.5%
    2. Computer Science10.9%
    3. Environmental Science00.2%
    4. Mathematics00.2%
    5. Chemistry00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does CHI Health specialise in?

Where its research is concentrated relative to its size: Surgery takes 8.0× the share of its output that it takes of world research.

  1. SurgerySubfield · 29.8 works8.0×
← 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: 0.12× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.75× its world share, 6 worksBiochemistry, Geneti…Immunology and Microbiology: 1.39× its world share, 2 worksImmunology and Micro…Neuroscience: 1.29× its world share, 3 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.31× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.09× its world share, 0 worksChemistryComputer Science: 0.11× its world share, 1 worksComputer ScienceEngineering: 0.10× its world share, 2 worksEngineeringEnvironmental Science: 0.05× its world share, 0 worksEnvironmental ScienceMathematics: 0.20× its world share, 0 worksMathematicsDentistry: 0.78× its world share, 1 worksDentistryHealth Professions: 1.97× its world share, 8 worksHealth ProfessionsMedicine: 3.96× its world share, 121 worksMedicineNursing: 2.37× its world share, 2 worksNursingVeterinary: 0.51× its world share, 0 worksVeterinaryArts and Humanities: 0.07× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.04× its world share, 0 worksBusiness, Management…Decision Sciences: 0.27× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.45× its world share, 2 worksEconomics, Econometr…Psychology: 0.68× its world share, 3 worksPsychologySocial Sciences: 0.18× its world share, 4 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.0×. Every wedge is a field page.

All 21 fields, with their numbers
  1. Medicine3.96×121 works
  2. Nursing2.37×2 works
  3. Health Professions1.97×8 works
  4. Immunology and Microbiology1.39×2 works
  5. Neuroscience1.29×3 works
  6. Dentistry0.78×1 works
  7. Biochemistry, Genetics and Molecular Biology0.75×6 works
  8. Psychology0.68×3 works
  9. Veterinary0.51×0 works
  10. Economics, Econometrics and Finance0.45×2 works
  11. Pharmacology, Toxicology and Pharmaceutics0.31×0 works
  12. Decision Sciences0.27×0 works
  13. Mathematics0.20×0 works
  14. Social Sciences0.18×4 works
  15. Agricultural and Biological Sciences0.12×1 works
  16. Computer Science0.11×1 works
  17. Engineering0.10×2 works
  18. Chemistry0.09×0 works
  19. Arts and Humanities0.07×0 works
  20. Environmental Science0.05×0 works
  21. Business, Management and Accounting0.04×0 works

Who are the top researchers at CHI Health?

Ranked on the quality score, Tomoyuki Urata, Peggy Prinz Luebbert and Satoru Takeuchi lead among researchers whose main affiliation is CHI Health.

  1. 1 Tomoyuki Urata United States · #5,164,752 worldwide 211 citations · 19 works
  2. 2 Peggy Prinz Luebbert United States · #5,472,606 worldwide 27 citations · 25 works
  3. 3 Satoru Takeuchi United States · #5,498,753 worldwide 80 citations · 28 works
  4. 4 Kazuyuki Oishi United States · #5,623,077 worldwide 76 citations · 21 works
  5. 5 Shuta Tamura United States · #6,022,228 worldwide 46 citations · 35 works
All ranked researchers at CHI Health

What are the most cited papers from CHI Health?

The most cited paper from CHI Health is "National Standards for Diabetes Self-Management Education and Support" (Linda B. Haas, Melinda Downie Maryniuk, Joni K. Beck et al., 2012), with 669 citations. Next come "Effect of aging on gender differences in neural control of heart rate" (564) and "Phase III study comparing oxaliplatin plus S-1 with cisplatin plus S-1 in chemotherapy-naïve patients with advanced gastric cancer" (546).

Most cited papers
#PaperReleasedCitations
1 National Standards for Diabetes Self-Management Education and Support Linda B. Haas, Melinda Downie Maryniuk, Joni K. Beck et al. · Diabetes Care Open access 21 Sep 2012 669
2 Effect of aging on gender differences in neural control of heart rate Terry B. J. Kuo, Tsann Lin, Cheryl C.H. Yang et al. · American Journal of Physiology-Heart and Circulatory Physiology Dec 1999 564
3 Phase III study comparing oxaliplatin plus S-1 with cisplatin plus S-1 in chemotherapy-naïve patients with advanced gastric cancer Yasuhide Yamada et al. · Annals of Oncology Open access 15 Oct 2014 546
4 Diagnosis and management of insulinoma Takehiro Okabayashi · World Journal of Gastroenterology Open access 2013 475
5 Improved Outcomes Associated with the use of Shock Protocols: Updates from the National Cardiogenic Shock Initiative Mir B. Basir et al. · Catheterization and Cardiovascular Interventions 25 Apr 2019 452
All 59 most cited papers, with filters and sorting

Which keywords describe research at CHI Health?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Diagnosis, Treatment, Chemotherapy, Management, Prognostic Factors, Clinical Practice 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-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. Epidemiology20▲ 3.2×66 topics
  2. Treatment11▲ 5.5×26 topics
  3. Diagnosis10▲ 6.8×24 topics
  4. Chemotherapy9▲ 7.6×19 topics
  5. Management8▲ 6.5×19 topics
  6. Prognostic Factors7▲ 11×10 topics
  7. Clinical Practice Guidelines7▲ 7.7×13 topics
  8. Surgical Management7▲ 10×14 topics
  9. Complications6▲ 8.1×13 topics
  10. Immunotherapy6▲ 5.4×12 topics
  11. Risk Factors5▲ 2.9×18 topics
  12. Guidelines5▲ 6.4×11 topics
  13. Quality of Life5▲ 2.0×25 topics
  14. Survival Analysis4▲ 9.9×6 topics
  15. Cholangiocarcinoma4▲ 32×2 topics
  16. Tumor Microenvironment4▲ 5.8×4 topics
  17. Neoadjuvant Therapy4▲ 9.8×5 topics
  18. Mortality4▲ 3.9×9 topics
  19. Surgery4▲ 6.4×8 topics
  20. Gastric Cancer3▲ 19×3 topics
  21. Radiofrequency Ablation3▲ 19×2 topics
  22. Molecular Characterization3▲ 11×5 topics
  23. Hepatocellular Carcinoma3▲ 8.6×2 topics
  24. Molecular Profiling3▲ 19×3 topics
  25. Pancreatic Cancer3▲ 16×2 topics
  26. Radiotherapy3▲ 4.5×9 topics
  27. Rituximab3▲ 12×2 topics
  28. Survival3▲ 12×3 topics
  29. Gemcitabine3▲ 24×1 topic
  30. Surgical Complications3▲ 21×1 topic
  31. Children3▲ 7.1×5 topics
  32. PET Imaging3▲ 9.9×3 topics
  33. Critical Care2▲ 6.2×7 topics
  34. Liver Cancer2▲ 27×1 topic
  35. Molecular Pathology2▲ 15×2 topics
  36. Palliative Treatment2▲ 23×2 topics
  37. Sorafenib2▲ 27×1 topic
  38. Therapeutic Targets2▲ 9.8×3 topics
  39. Catheter Ablation2▲ 12×2 topics
  40. Therapeutic Strategies2▲ 15×2 topics

Which research topics does CHI Health publish most on?

By volume in 2022-now: Pancreatic and Hepatic Oncology Research, Hepatocellular Carcinoma Treatment and Prognosis, Gallbladder and Bile Duct Disorders and Cholangiocarcinoma and Gallbladder Cancer Studies.

Pancreatic and Hepatic O…3Pancreatic and Hepatic Oncology Research: 3 fractional worksHepatocellular Carcinoma…2Hepatocellular Carcinoma Treatment and Prognosis: 2 fractional worksGallbladder and Bile Duc…2Gallbladder and Bile Duct Disorders: 2 fractional worksCholangiocarcinoma and G…2Cholangiocarcinoma and Gallbladder Cancer Studies: 2 fractional worksCardiac Valve Diseases and Treatments: 2 fractional worksGastric Cancer Management and Outcomes: 2 fractional worksLymphoma Diagnosis and T…2Lymphoma Diagnosis and Treatment: 2 fractional worksEsophageal and GI Pathology: 2 fractional worksPancreatitis Pathology and Treatment: 1 fractional worksAtrial Fibrillation Mana…1Atrial Fibrillation Management and Outcomes: 1 fractional works
OncologyHepatologyPulmonary and Respiratory MedicineSurgery2 others

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

  1. 1 Pancreatic and Hepatic Oncology Research Oncology 3 works
  2. 2 Hepatocellular Carcinoma Treatment and Prognosis Hepatology 2 works
  3. 3 Gallbladder and Bile Duct Disorders Pulmonary and Respiratory Medicine 2 works
  4. 4 Cholangiocarcinoma and Gallbladder Cancer Studies Surgery 2 works
  5. 5 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 2 works
  6. 6 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 2 works
  7. 7 Lymphoma Diagnosis and Treatment Pathology and Forensic Medicine 2 works
  8. 8 Esophageal and GI Pathology Surgery 2 works
  9. 9 Pancreatitis Pathology and Treatment Surgery 1 works
  10. 10 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 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 available51.9%not open48.1%

World: 40% of research is openly available.

with international co-authors29.2%domestic only70.8%

World: 18% is written across borders.

How has CHI Health's research output changed?

Output in 2022-2025 was 32% 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 CHI Health as a percentage of every work published that year, 0.00064% in 2024.

still counting0.00025%0.00050%0.00075%CHI Health0.00059% in 202519801990200020102020

Fractional works of CHI Health 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 2025CHI Health3.9% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 9.0% in 2023.

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CHI Health on Science Explorer

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