World's Best Scientists 2026 revealed!
Carl van Walraven

Carl van Walraven

D-Index & Metrics

Medicine

D-Index
77
Citations
25518
World Ranking
18326
National Ranking
774

Carl van Walraven publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Carl van Walraven sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 282 publications — 13th percentile

13% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Carl van Walraven D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Carl van Walraven sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 77 D-Index — 10th percentile

10% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Carl van Walraven is affiliated with the University of Ottawa in Canada and has contributed extensively to research in the field of Medicine. Their work spans several subfields including Cardiology and Cardiovascular Medicine, Surgery, Physiology, Epidemiology, and Geriatrics and Gerontology.

The main topics of their research include:

  • Cardiac, Anesthesia and Surgical Outcomes
  • Frailty in Older Adults
  • Hip and Femur Fractures
  • Health Systems, Economic Evaluations, Quality of Life
  • Emergency and Acute Care Studies
  • Trace Elements in Health
  • Meta-analysis and systematic reviews

Carl van Walraven has published frequently in the following venues:

  • British Journal of Anaesthesia
  • Journal of General Internal Medicine
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Canadian Journal of Anesthesia/Journal canadien d anesthésie
  • Canadian Medical Association Journal

Their recent papers include:

  • Home-based prehabilitation with exercise to improve postoperative recovery for older adults with frailty having cancer surgery: the PREHAB randomised clinical trial, 2022, British Journal of Anaesthesia
  • Frailty and long-term postoperative disability trajectories: a prospective multicentre cohort study, 2020, British Journal of Anaesthesia
  • Barriers and facilitators to participation in exercise prehabilitation before cancer surgery for older adults with frailty: a qualitative study, 2023, BMC Geriatrics
  • A Bayesian Comparison of Frailty Instruments in Noncardiac Surgery: A Cohort Study, 2020, Anesthesia & Analgesia
  • Evaluation of a preoperative personalized risk communication tool: a prospective before-and-after study, 2020, Canadian Journal of Anesthesia/Journal canadien d anesthésie

Frequent co-authors collaborating with Carl van Walraven are:

  • Daniel I. McIsaac
  • Luke T. Lavallée
  • Alan J. Forster
  • Emily Hladkowicz
  • Husein Moloo

Best Publications

  • A modification of the Elixhauser comorbidity measures into a point system for hospital death using administrative data.

    Carl van Walraven;Peter C. Austin;Alison Jennings;Hude Quan

  • Derivation and validation of an index to predict early death or unplanned readmission after discharge from hospital to the community

    Carl van Walraven;Irfan A. Dhalla;Chaim Bell;Edward Etchells

  • Oral anticoagulants vs aspirin in nonvalvular atrial fibrillation: an individual patient meta-analysis.

    Carl van Walraven;Robert G. Hart;Daniel E. Singer;Andreas Laupacis

  • Adverse events among medical patients after discharge from hospital

    Alan J. Forster;Heather D. Clark;Alex Menard;Natalie Dupuis

  • Selecting Patients With Atrial Fibrillation for Anticoagulation Stroke Risk Stratification in Patients Taking Aspirin

    Brian F. Gage;Carl van Walraven;Lesly Pearce;Robert G. Hart

  • Proportion of hospital readmissions deemed avoidable: a systematic review

    Carl van Walraven;Carol Bennett;Alison Jennings;Peter C. Austin

  • The association between continuity of care and outcomes: a systematic and critical review

    Carl Van Walraven;Natalie Oake;Alison Jennings;Alan J. Forster

  • Effect of Study Setting on Anticoagulation Control* A Systematic Review and Metaregression

    Carl van Walraven;Alison Jennings;Natalie Oake;Dean Fergusson

  • Clinical inertia in response to inadequate glycemic control: do specialists differ from primary care physicians?

    Baiju R. Shah;Janet E. Hux;Andreas Laupacis;Bernard Zinman

  • The effect of hospital occupancy on emergency department length of stay and patient disposition.

    Alan J Forster;Ian Stiell;George Wells;Alexander J Lee

  • Effect of Age on Stroke Prevention Therapy in Patients With Atrial Fibrillation: The Atrial Fibrillation Investigators

    Carl van Walraven;Robert G. Hart;Stuart Connolly;Peter C. Austin

  • Effect of discharge summary availability during post-discharge visits on hospital readmission.

    Carl van Walraven;Ratika Seth;Peter C Austin;Andreas Laupacis

  • Inhibition of serotonin reuptake by antidepressants and upper gastrointestinal bleeding in elderly patients: retrospective cohort study.

    C van Walraven;M M Mamdani;P S Wells;J I Williams

  • Time-dependent bias was common in survival analyses published in leading clinical journals

    Carl van Walraven;Darryl Davis;Alan J. Forster;George A. Wells

  • Maternal age and risk of stillbirth: a systematic review

    Ling Huang;Reg Sauve;Nicholas Birkett;Dean Fergusson

  • Using the Johns Hopkins Aggregated Diagnosis Groups (ADGs) to predict mortality in a general adult population cohort in Ontario, Canada.

    Peter C. Austin;Carl van Walraven;Walter P. Wodchis;Alice Newman

  • Prevalence of information gaps in the emergency department and the effect on patient outcomes

    Andrew Stiell;Alan J. Forster;Ian G. Stiell;Carl van Walraven

  • Mycophenolate Mofetil Dose Reduction and the Risk of Acute Rejection after Renal Transplantation

    Greg A. Knoll;Ian MacDonald;Asmat Khan;Carl van Walraven

  • Ottawa Hospital Patient Safety Study: incidence and timing of adverse events in patients admitted to a Canadian teaching hospital

    Alan J. Forster;Tim R. Asmis;Heather D. Clark;Ghiath Al Saied

  • A clinical prediction rule to identify patients with atrial fibrillation and a low risk for stroke while taking aspirin.

    Carl van Walraven;Robert G. Hart;George A. Wells;Palle Petersen

Frequent Co-Authors

Dean Fergusson
Dean Fergusson Ottawa Hospital
Peter C. Austin
Peter C. Austin University of Toronto
Ian G. Stiell
Ian G. Stiell University of Ottawa
Finlay A. McAlister
Finlay A. McAlister University of Alberta
Amit X. Garg
Amit X. Garg University of Western Ontario
Robert G. Hart
Robert G. Hart Population Health Research Institute
Chaim M. Bell
Chaim M. Bell University of Toronto
Andreas Laupacis
Andreas Laupacis St. Michael's Hospital
Duminda N. Wijeysundera
Duminda N. Wijeysundera University of Toronto
Justin A. Ezekowitz
Justin A. Ezekowitz University of Alberta

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