World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
81
Citations
33314
World Ranking
16424
National Ranking
1500

Marion K Campbell 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 Marion K Campbell 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: 295 publications — 16th percentile

16% of scientists in this discipline score the same or lower.

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

Marion K Campbell 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 Marion K Campbell 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: 81 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2013 - Fellow of the Royal Society of Edinburgh

Overview

Marion K Campbell is affiliated with the University of Aberdeen in the United Kingdom. Their research primarily spans the field of Medicine, with significant contributions distributed across subfields such as Economics and Econometrics, Surgery, General Health Professions, Statistics, Probability and Uncertainty, and Cardiology and Cardiovascular Medicine.

Their work covers a range of main topics including Health Systems, Economic Evaluations, and Quality of Life; Meta-analysis and Systematic Reviews; Cardiac, Anesthesia, and Surgical Outcomes; the Delphi Technique in Research; Ethics in Clinical Research; Trauma and Emergency Care Studies; and Health Policy Implementation Science.

Marion K Campbell has published multiple papers in frequent venues, including Trials, JAMA, BMJ, British Journal of Surgery, and BMJ Open. Some of their recent papers include:

  • CONSORT 2025 statement: updated guideline for reporting randomised trials, 2025, BMJ
  • Emergency Department Resuscitative Endovascular Balloon Occlusion of the Aorta in Trauma Patients With Exsanguinating Hemorrhage, 2023, JAMA
  • CONSORT extension for the reporting of randomised controlled trials conducted using cohorts and routinely collected data (CONSORT-ROUTINE): checklist with explanation and elaboration, 2021, BMJ
  • CONSORT 2025 statement: updated guideline for reporting randomised trials, 2025, The Lancet
  • SPIRIT 2025 statement: updated guideline for protocols of randomised trials, 2025, BMJ

Marion K Campbell has collaborated extensively with several researchers, with frequent co-authors including Katie Gillies, David Torgerson, David Moher, Philippe Ravaud, and Lehana Thabane.

In recognition of their contributions, Marion K Campbell was awarded the title of Fellow of the Royal Society of Edinburgh in 2013.

Best Publications

  • CONSORT statement: extension to cluster randomised trials

    Marion K Campbell;Diana R Elbourne;Douglas G Altman

  • Oral vitamin D3 and calcium for secondary prevention of low-trauma fractures in elderly people (Randomised Evaluation of Calcium Or vitamin D, RECORD): a randomised placebo-controlled trial.

    A M Grant;A Avenell;M K Campbell;A M McDonald

  • What influences recruitment to randomised controlled trials? A review of trials funded by two UK funding agencies.

    Alison Mary McDonald;Rosemary C. Knight;Marion Kay Campbell;Vikki Entwistle

  • Systematic review of the long-term effects and economic consequences of treatments for obesity and implications for health improvement

    Alison Avenell;J. Broom;Tamara Joanne Brown;Amudha Sujatha Poobalan

  • The method of minimization for allocation to clinical trials: a review

    Neil W Scott;Gladys C McPherson;Craig R Ramsay;Marion K Campbell

  • Research designs for studies evaluating the effectiveness of change and improvement strategies

    M Eccles;J Grimshaw;M Campbell;C Ramsay

  • Dietary influences on bone mass and bone metabolism: further evidence of a positive link between fruit and vegetable consumption and bone health?

    Susan A New;Simon P Robins;Marion K Campbell;James C Martin

  • Recruitment to randomised trials: strategies for trial enrolment and participation study. The STEPS study

    Marion Kay Campbell;Claire Snowdon;David Francis;Diana R. Elbourne

  • Aspirin in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial

    P W Horby;M Campbell;E Spata;Emberson

  • Nutritional associations with bone loss during the menopausal transition: evidence of a beneficial effect of calcium, alcohol, and fruit and vegetable nutrients and of a detrimental effect of fatty acids

    Helen Margaret MacDonald;S. A. New;Michael Henry Niven Golden;Marion Kay Campbell

  • Experimental and quasi-experimental designs for evaluating guideline implementation strategies.

    Jeremy Grimshaw;Marion Campbell;Martin Eccles;Nick Steen

  • Reporting of stepped wedge cluster randomised trials: extension of the CONSORT 2010 statement with explanation and elaboration

    Karla Hemming;Monica Taljaard;Monica Taljaard;Joanne E McKenzie;Richard Hooper

  • The PRaCTICaL study of nurse led, intensive care follow-up programmes for improving long term outcomes from critical illness: a pragmatic randomised controlled trial

    B H Cuthbertson;J Rattray;M K Campbell;M Gager

  • Laparoscopic versus open repair of groin hernia: a randomised comparison

    P O'Dwyer;I Macintyre;A Grant;C Donaldson

  • Safety and immunogenicity of seven COVID-19 vaccines as a third dose (booster) following two doses of ChAdOx1 nCov-19 or BNT162b2 in the UK (COV-BOOST): a blinded, multicentre, randomised, controlled, phase 2 trial

    Alasdair P S Munro;Alasdair P S Munro;Leila Janani;Victoria Cornelius;Parvinder K Aley

  • Randomised trial of glutamine, selenium, or both, to supplement parenteral nutrition for critically ill patients

    Peter J D Andrews;Alison Avenell;David W Noble;Marion K Campbell

  • Analysis of cluster randomized trials in primary care: a practical approach.

    Marion K Campbell;Jill Mollison;Nick Steen;Jeremy M Grimshaw

  • A systematic review of discharge coding accuracy.

    Susan E. Campbell;Marion K. Campbell;Jeremy M. Grimshaw;Anne E. Walker

  • Cluster trials in implementation research: estimation of intracluster correlation coefficients and sample size.

    Marion K. Campbell;Jill Mollison;Jeremy M. Grimshaw

  • A proposed charter for clinical trial data monitoring committees: helping them to do their job well

    AM Grant;DG Altman;AG Babiker;MK Campbell

Frequent Co-Authors

Jeremy M. Grimshaw
Jeremy M. Grimshaw Ottawa Hospital
David J. Torgerson
David J. Torgerson University of York
Jill J Francis
Jill J Francis University of Melbourne
Luke Vale
Luke Vale Newcastle University
Diana Elbourne
Diana Elbourne London School of Hygiene & Tropical Medicine
David J Beard
David J Beard University of Oxford
Andrew Carr
Andrew Carr University of Oxford
Ray Fitzpatrick
Ray Fitzpatrick University of Oxford
Vikki Entwistle
Vikki Entwistle University of Aberdeen
Adrian Grant
Adrian Grant University of Oxford

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