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Hospital / health system · Jaffna · Sri Lanka

Jaffna Teaching Hospital

In research, Jaffna Teaching Hospital stands highest in Medicine (#7,192 of 8,541 worldwide) and Health Sciences (#8,725 of 9,902 worldwide), 2022-now.

ROR OpenAlex
World rank, 2022-now
#20,789
of 22,385 · #32,837 all time
Rank in Sri Lanka
#33
of 36
Research works
368
▼ 24% vs 2018-21
Citations
950
2.6 per fractional work
Top-10% rate
1.3%
all institutions 10.0%
vs its own fields
0.83×
1.00× is exactly expected
Open access
92%
world 40%
International
10%
world 18%
Jaffna Teaching Hospital

What is Jaffna Teaching 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 #7,192 of 8,541 0.9%96 #13146
Health SciencesDomain #8,725 of 9,902 0.8%100 #15539

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

In 2022-now, 84% of research at Jaffna Teaching Hospital is in Health Sciences, 10% in Life Sciences. Its largest fields are Medicine (81%), Biochemistry, Genetics and Molecular Biology (6%), Health Professions (3%). It does 3.4× the world's share of Health Sciences.

Health Sciences: 105 fractional works · 84.2% of its workMedicine: 101 fractional works · 80.6% of its workSurgery: 19 fractional works · 14.9% of its workPulmonary and Respiratory Medicine: 11 fractional works · 8.5% of its workEpidemiology: 8 fractional works · 6.7% of its workCardiology and Cardiovascular Medicine: 6 fractional works · 4.9% of its workEmergency Medicine: 4 fractional works · 3.5% of its workInfectious Diseases: 4 fractional works · 3.4% of its workEndocrinology, Diabetes and Metabolism: 4 fractional works · 3.2% of its workRheumatology: 4 fractional works · 3.0% of its workPathology and Forensic Medicine: 4 fractional works · 2.9% of its workPediatrics, Perinatology and Child Health: 3 fractional works · 2.7% of its workPublic Health, Environmental and Occupational Health: 3 fractional works · 2.4% of its workOncology: 3 fractional works · 2.4% of its workGenetics: 3 fractional works · 2.3% of its workNeurology: 3 fractional works · 2.3% of its workRadiology, Nuclear Medicine and Imaging: 3 fractional works · 2.1% of its workPhysiology: 2 fractional works · 1.9% of its workObstetrics and Gynecology: 2 fractional works · 1.9% of its workHematology: 2 fractional works · 1.5% of its workReproductive Medicine: 2 fractional works · 1.3% of its workHepatology: 1 fractional works · 1.2% of its workPharmacology: 1 fractional works · 1.1% of its workDermatology: 1 fractional works · 1.0% of its workPsychiatry and Mental health: 1 fractional works · 1.0% of its workNephrology: 1 fractional works · 0.9% of its workOphthalmology: 1 fractional works · 0.8% of its workUrology: 1 fractional works · 0.7% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.6% of its workGastroenterology: 1 fractional works · 0.5% of its workInternal Medicine: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.6% of its workHealth Professions: 3 fractional works · 2.6% of its workGeneral Health Professions: 1 fractional works · 1.0% of its workSpeech and Hearing: 1 fractional works · 0.5% of its workEmergency Medical Services: 1 fractional works · 0.4% of its workPharmacy: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.4% of its workVeterinary: 1 fractional works · 0.8% of its workSmall Animals: 1 fractional works · 0.8% of its workNursing: 0 fractional works · 0.1% of its workDentistry: 0 fractional works · 0.1% of its workLife Sciences: 12 fractional works · 9.8% of its workBiochemistry, Genetics and Molecular Biology: 7 fractional works · 5.8% of its workMolecular Biology: 3 fractional works · 2.3% of its workGenetics: 2 fractional works · 1.8% of its workEndocrinology: 1 fractional works · 0.8% of its workCancer Research: 0 fractional works · 0.4% of its workClinical Biochemistry: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workAgricultural and Biological Sciences: 2 fractional works · 1.9% of its workPlant Science: 2 fractional works · 1.3% of its workFood Science: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 1 fractional works · 0.9% of its workParasitology: 1 fractional works · 0.4% of its workApplied Microbiology and Biotechnology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNeuroscience: 1 fractional works · 0.8% of its workCellular and Molecular Neuroscience: 1 fractional works · 0.4% of its workCognitive Neuroscience: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.3% of its workSocial Sciences: 5 fractional works · 4.3% of its workSocial Sciences: 2 fractional works · 1.3% of its workHealth: 1 fractional works · 0.9% of its workSmaller subfields together: 0 fractional works · 0.4% of its workPsychology: 1 fractional works · 1.1% of its workClinical Psychology: 1 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.3% of its workArts and Humanities: 1 fractional works · 0.6% of its workLanguage and Linguistics: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workBusiness, Management and Accounting: 1 fractional works · 0.6% of its workOrganizational Behavior and Human Resource Management: 1 fractional works · 0.6% of its workEconomics, Econometrics and Finance: 1 fractional works · 0.4% of its workEconomics and Econometrics: 1 fractional works · 0.4% of its workDecision Sciences: 0 fractional works · 0.4% of its workManagement Science and Operations Research: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPhysical Sciences: 2 fractional works · 1.7% of its workEngineering: 1 fractional works · 0.7% of its workBiomedical Engineering: 0 fractional works · 0.4% of its workSafety, Risk, Reliability and Quality: 0 fractional works · 0.3% of its workMaterials Science: 0 fractional works · 0.3% of its workMaterials Chemistry: 0 fractional works · 0.3% of its workPhysics and Astronomy: 0 fractional works · 0.3% of its workRadiation: 0 fractional works · 0.3% of its workEnvironmental Science: 0 fractional works · 0.2% of its workMathematics: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 0 fractional works · 0.1% of its workChemistry: 0 fractional works · 0.1% of its workALL ITS WORKJaffna TeachingHospital125fractional works, 2022-now
Life Sciences10%Physical Sciences2%Health Sciences84%Social Sciences4%

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 23 fields, with their numbers
    1. Medicine10180.6%
    2. Health Professions32.6%
    3. Veterinary10.8%
    4. Nursing00.1%
    5. Dentistry00.1%
    1. Biochemistry, Genetics and Molecular Biology75.8%
    2. Agricultural and Biological Sciences21.9%
    3. Immunology and Microbiology10.9%
    4. Neuroscience10.8%
    5. Pharmacology, Toxicology and Pharmaceutics00.3%
    1. Social Sciences21.3%
    2. Psychology11.1%
    3. Arts and Humanities10.6%
    4. Business, Management and Accounting10.6%
    5. Economics, Econometrics and Finance10.4%
    6. Decision Sciences00.4%
    1. Engineering10.7%
    2. Materials Science00.3%
    3. Physics and Astronomy00.3%
    4. Environmental Science00.2%
    5. Mathematics00.2%
    6. Earth and Planetary Sciences00.1%
    7. Chemistry00.1%
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: 0.41× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.10× its world share, 7 worksBiochemistry, Geneti…Immunology and Microbiology: 0.90× its world share, 1 worksImmunology and Micro…Neuroscience: 0.52× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.76× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.04× its world share, 0 worksChemistryEarth and Planetary Sciences: 0.08× its world share, 0 worksEarth and Planetary …Engineering: 0.04× its world share, 1 worksEngineeringEnvironmental Science: 0.04× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.08× its world share, 0 worksMaterials ScienceMathematics: 0.13× its world share, 0 worksMathematicsPhysics and Astronomy: 0.11× its world share, 0 worksPhysics and AstronomyDentistry: 0.27× its world share, 0 worksDentistryHealth Professions: 0.97× its world share, 3 worksHealth ProfessionsMedicine: 4.19× its world share, 101 worksMedicineNursing: 0.30× its world share, 0 worksNursingVeterinary: 5.56× its world share, 1 worksVeterinaryArts and Humanities: 0.21× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.18× its world share, 1 worksBusiness, Management…Decision Sciences: 0.41× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.21× its world share, 1 worksEconomics, Econometr…Psychology: 0.35× its world share, 1 worksPsychologySocial Sciences: 0.10× its world share, 2 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 5.6×. Every wedge is a field page.

All 23 fields, with their numbers
  1. Veterinary5.56×1 works
  2. Medicine4.19×101 works
  3. Biochemistry, Genetics and Molecular Biology1.10×7 works
  4. Health Professions0.97×3 works
  5. Immunology and Microbiology0.90×1 works
  6. Pharmacology, Toxicology and Pharmaceutics0.76×0 works
  7. Neuroscience0.52×1 works
  8. Agricultural and Biological Sciences0.41×2 works
  9. Decision Sciences0.41×0 works
  10. Psychology0.35×1 works
  11. Nursing0.30×0 works
  12. Dentistry0.27×0 works
  13. Arts and Humanities0.21×1 works
  14. Economics, Econometrics and Finance0.21×1 works
  15. Business, Management and Accounting0.18×1 works
  16. Mathematics0.13×0 works
  17. Physics and Astronomy0.11×0 works
  18. Social Sciences0.10×2 works
  19. Earth and Planetary Sciences0.08×0 works
  20. Materials Science0.08×0 works
  21. Chemistry0.04×0 works
  22. Engineering0.04×1 works
  23. Environmental Science0.04×0 works

Who are the top researchers at Jaffna Teaching Hospital?

Ranked on the quality score, Ajantha Keshavaraj, Mahalingam Aravinthan and Sittampalam Rajendra lead among researchers whose main affiliation is Jaffna Teaching Hospital.

  1. 1 Ajantha Keshavaraj Sri Lanka · #3,126,385 worldwide 442 citations · 21 works
  2. 2 Mahalingam Aravinthan Sri Lanka · #3,297,080 worldwide 175 citations · 15 works
  3. 3 Sittampalam Rajendra Sri Lanka · #4,764,114 worldwide 81 citations · 24 works
  4. 4 S. Lavanya Sri Lanka · #5,070,898 worldwide 51 citations · 15 works
  5. 5 Mahesan Guruparan Sri Lanka · #5,123,214 worldwide 257 citations · 45 works
  6. 6 Chrishanthi I. Rajasooriyar Sri Lanka · #5,254,764 worldwide 168 citations · 26 works
  7. 7 Meganathan Sivashankar Sri Lanka · #5,255,847 worldwide 15 citations · 17 works
  8. 8 Nisanthan Selvaratnam Sri Lanka · #5,345,447 worldwide 3 citations · 15 works
  9. 9 Thaneswary Sooriyakumar Sri Lanka · #5,381,186 worldwide 13 citations · 18 works
  10. 10 S. Raviraj Sri Lanka · #5,687,532 worldwide 18 citations · 22 works
All ranked researchers at Jaffna Teaching Hospital

What are the most cited papers from Jaffna Teaching Hospital?

The most cited paper from Jaffna Teaching Hospital is "ECCO Guidelines on Inflammatory Bowel Disease and Malignancies" (Hannah B. Gordon et al., 2022), with 316 citations. Next come "Outcomes and moderators of a preventive school‐based mental health intervention for children affected by war in Sri Lanka: a cluster randomized trial" (177) and "Multiple-dose activated charcoal for treatment of yellow oleander poisoning: a single-blind, randomised, placebo-controlled trial" (147).

Most cited papers
#PaperReleasedCitations
1 ECCO Guidelines on Inflammatory Bowel Disease and Malignancies Hannah B. Gordon et al. · Journal of Crohn s and Colitis Open access 14 Dec 2022 316
2 Outcomes and moderators of a preventive school‐based mental health intervention for children affected by war in Sri Lanka: a cluster randomized trial Wietse Anton Tol, Ivan H. Komproe, Mark J. D. Jordans et al. · World Psychiatry Open access Jun 2012 177
3 Multiple-dose activated charcoal for treatment of yellow oleander poisoning: a single-blind, randomised, placebo-controlled trial HA de Silva, HA de Silva, M.M.D. Fonseka et al. · The Lancet Jun 2003 147
4 War Trauma in a Civilian Population Daya J. Somasundaram, Sambasivamoorthy Sivayokan · The British Journal of Psychiatry Oct 1994 146
5 Consensus recommendations on sulfonylurea and sulfonylurea combinations in the management of Type 2 diabetes mellitus – International Task Force Sanjay Kalra et al. · Indian Journal of Endocrinology and Metabolism Open access 2018 99
All 62 most cited papers, with filters and sorting

Which keywords describe research at Jaffna Teaching Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Diagnosis, Management, Treatment, Surgical Management, Clinical Guidelines, Global Burden and Risk Factors.

▲ 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▲ 4.1×57 topics
  2. Diagnosis11▲ 9.4×25 topics
  3. Treatment9▲ 6.1×23 topics
  4. Management8▲ 8.5×18 topics
  5. Risk Factors6▲ 4.1×14 topics
  6. Cardiovascular Disease5▲ 3.5×17 topics
  7. Metabolic Syndrome5▲ 4.8×13 topics
  8. Global Burden5▲ 6.8×10 topics
  9. Surgical Management4▲ 8.8×13 topics
  10. Clinical Guidelines4▲ 12×7 topics
  11. Complications4▲ 6.6×10 topics
  12. Chemotherapy4▲ 4.5×13 topics
  13. Genetics4▲ 4.3×6 topics
  14. Guidelines4▲ 6.4×10 topics
  15. Pathogenesis4▲ 5.8×9 topics
  16. Immunotherapy4▲ 3.9×10 topics
  17. Clinical Trials3▲ 4.0×6 topics
  18. Genetic Mutations3▲ 6.0×10 topics
  19. Surgery3▲ 7.1×8 topics
  20. Antibiotic Resistance3▲ 6.0×6 topics
  21. Embolization3▲ 35×2 topics
  22. Rituximab3▲ 15×4 topics
  23. Diabetes2▲ 4.0×9 topics
  24. Diabetes Mellitus2▲ 9.8×4 topics
  25. Insulin Resistance2▲ 4.4×5 topics
  26. Hypertension2▲ 6.3×7 topics
  27. Prognostic Factors2▲ 4.3×8 topics
  28. Vaccine Development2▲ 7.0×4 topics
  29. Vascular Anomalies2▲ 58×2 topics
  30. Genetic Variants2▲ 9.6×6 topics
  31. Hemostasis2▲ 18×3 topics
  32. Echocardiography2▲ 6.1×4 topics
  33. Hereditary Hemorrhagic Telangiectasia2▲ 115×1 topic
  34. Pulmonary Arteriovenous Malformations2▲ 115×1 topic
  35. Stroke2▲ 9.6×5 topics
  36. Virulence2▲ 25×3 topics
  37. Autoantibodies2▲ 6.6×6 topics
  38. CT Imaging2▲ 38×2 topics
  39. Antifungal Therapy2▲ 16×3 topics
  40. Cardiovascular Events2▲ 12×2 topics

Which research topics does Jaffna Teaching Hospital publish most on?

By volume in 2022-now: Vascular Anomalies and Treatments, Autopsy Techniques and Outcomes, Blood Pressure and Hypertension Studies and Vasculitis and related conditions.

Vascular Anomalies and T…2Vascular Anomalies and Treatments: 2 fractional worksAutopsy Techniques and O…2Autopsy Techniques and Outcomes: 2 fractional worksBlood Pressure and Hyper…2Blood Pressure and Hypertension Studies: 2 fractional worksVasculitis and related c…1Vasculitis and related conditions: 1 fractional worksBurkholderia infections and melioidosis: 1 fractional worksVascular Procedures and Complications: 1 fractional worksLiver Disease Diagnosis …1Liver Disease Diagnosis and Treatment: 1 fractional worksCardiac tumors and thrombi: 1 fractional worksAbdominal Trauma and Injuries: 1 fractional worksMusculoskeletal pain and…1Musculoskeletal pain and rehabilitation: 1 fractional works
GeneticsRadiology, Nuclear Medicine and ImagingCardiology and Cardiovascular MedicinePulmonary and Respiratory Medicine3 others

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

  1. 1 Vascular Anomalies and Treatments Genetics 2 works
  2. 2 Autopsy Techniques and Outcomes Radiology, Nuclear Medicine and Imaging 2 works
  3. 3 Blood Pressure and Hypertension Studies Cardiology and Cardiovascular Medicine 2 works
  4. 4 Vasculitis and related conditions Pulmonary and Respiratory Medicine 1 works
  5. 5 Burkholderia infections and melioidosis Epidemiology 1 works
  6. 6 Vascular Procedures and Complications Pulmonary and Respiratory Medicine 1 works
  7. 7 Liver Disease Diagnosis and Treatment Epidemiology 1 works
  8. 8 Cardiac tumors and thrombi Cardiology and Cardiovascular Medicine 1 works
  9. 9 Abdominal Trauma and Injuries Surgery 1 works
  10. 10 Musculoskeletal pain and rehabilitation Pharmacology 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 available92.5%not open7.5%

World: 40% of research is openly available.

with international co-authors10.3%domestic only89.7%

World: 18% is written across borders.

How has Jaffna Teaching Hospital's research output changed?

Output in 2022-2025 was 24% lower 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 Jaffna Teaching Hospital as a percentage of every work published that year, 0.00039% in 2024.

still counting0.00050%0.0010%Jaffna Teaching Hospital0.00025% in 20251990200020102020

Fractional works of Jaffna Teaching 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.

5%10%all institutions10.0% in 2024Jaffna Teaching Hospital0.8% in 20242020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 2.4% in 2019.

Other research institutions in Jaffna

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Jaffna Teaching Hospital on Science Explorer

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