World's Best Scientists 2026 revealed!
Robert G. Newcombe

Robert G. Newcombe

D-Index & Metrics

Medicine

D-Index
102
Citations
48017
World Ranking
7551
National Ranking
738

Robert G. Newcombe 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 Robert G. Newcombe 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: 527 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

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

Robert G. Newcombe 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 Robert G. Newcombe 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: 102 D-Index — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

Overview

Robert G. Newcombe is affiliated with Cardiff University in the United Kingdom. Their research spans multiple fields with a focus on Dentistry and Medicine, including specialized attention to subfields such as Periodontics, Oral Surgery, Orthodontics, Surgery, and Infectious Diseases.

Their work covers a variety of topics, highlighting significant contributions in areas including:

  • Dental Erosion and Treatment
  • Dental Anxiety and Anesthesia Techniques
  • Dental Health and Care Utilization
  • Oral Microbiology and Periodontitis Research
  • Breast Implant and Reconstruction
  • Dental Radiography and Imaging
  • Gestational Diabetes Research and Management

Newcombe's recent publications demonstrate engagement with diverse medical and dental issues. Selected papers include:

  • POSNOC-POsitive Sentinel NOde: adjuvant therapy alone versus adjuvant therapy plus Clearance or axillary radiotherapy: a randomised controlled trial of axillary treatment in women with early-stage breast cancer who have metastases in one or two sentinel nodes (2021), published in BMJ Open
  • The SARS-CoV2 envelope differs from host cells, exposes procoagulant lipids, and is disrupted in vivo by oral rinses (2022), published in Journal of Lipid Research
  • Randomised controlled trial of a microneedle patch with a topical anaesthetic for relieving the pain of dental injections (2021), published in Journal of Dentistry
  • A proof of concept study to confirm the suitability of an intra oral scanner to record oral images for the non-invasive assessment of gingival inflammation (2021), published in Journal of Dentistry
  • A randomised controlled trial investigating efficacy of a novel toothpaste containing calcium silicate and sodium phosphate in dentine hypersensitivity pain reduction compared to a fluoride control toothpaste (2020), published in Journal of Dentistry

Frequent collaborators include Nicola West, Joon Seong, Maria Davies, Sinéad Daly, and N. Claydon, with varying degrees of joint work documented.

Newcombe's research outputs have been published extensively in several venues, notably:

  • Journal of Dentistry
  • International Journal of Obesity
  • BMJ Open
  • Journal of Lipid Research
  • bioRxiv (Cold Spring Harbor Laboratory)

Best Publications

  • Two‐sided confidence intervals for the single proportion: comparison of seven methods

    Robert G. Newcombe

  • Interval estimation for the difference between independent proportions: comparison of eleven methods

    Robert G. Newcombe

  • Randomized Multicenter Trial of Sentinel Node Biopsy Versus Standard Axillary Treatment in Operable Breast Cancer: The ALMANAC Trial

    Robert Edward Mansel;Lesley Fallowfield;Mark Kissin;Amit Goyal

  • Results at 1 year of outpatient multidisciplinary pulmonary rehabilitation: a randomised controlled trial

    T. L. Griffiths;Michael Leslie Burr;I. A. Campbell;V . Lewis-Jenkins

  • Morphologic predictors of lymph node status in rectal cancer with use of high-spatial-resolution MR imaging with histopathologic comparison.

    Gina Brown;Catherine J Richards;Michael W Bourne;Robert G Newcombe

  • Preoperative assessment of prognostic factors in rectal cancer using high-resolution magnetic resonance imaging

    Gina Brown;A. G. Radcliffe;R. G. Newcombe;N. S. Dallimore

  • Transdermal nicotine for active ulcerative colitis.

    Pullan Rd;Rhodes J;Ganesh S;Mani

  • Rectal Carcinoma: Thin-Section MR Imaging for Staging in 28 Patients

    Gina Brown;Catherine J. Richards;Robert G. Newcombe;Nicholas S. Dallimore

  • Thickness of adherent mucus gel on colonic mucosa in humans and its relevance to colitis.

    R. D. Pullan;G. A. O. Thomas;M. Rhodes;R. G. Newcombe

  • Assessing the Quality of Decision Support Technologies Using the International Patient Decision Aid Standards instrument (IPDASi)

    Glyn Elwyn;Annette M. O'Connor;Carol Bennett;Robert Gordon Newcombe

  • Improved confidence intervals for the difference between binomial proportions based on paired data.

    Robert G. Newcombe

  • Observer variation in histopathological diagnosis and grading of cervical intraepithelial neoplasia.

    S. M. Ismail;A. B. Colclough;J. S. Dinnen;D. Eakins

  • Post-operative arm morbidity and quality of life. Results of the ALMANAC randomised trial comparing sentinel node biopsy with standard axillary treatment in the management of patients with early breast cancer

    Anne Fleissig;Lesley J. Fallowfield;Carolyn I. Langridge;Leigh Johnson

  • Hyperhomocysteinemia After an Oral Methionine Load Acutely Impairs Endothelial Function in Healthy Adults

    M.F. Bellamy;I.F.W. McDowell;M.W. Ramsey;M. Brownlee

  • Toward Minimum Standards for Certifying Patient Decision Aids A Modified Delphi Consensus Process

    Natalie Joseph-Williams;Robert Newcombe;Mary Politi;Marie Anne Durand

  • Four country healthcare associated infection prevalence survey 2006: overview of the results.

    E. T. M. Smyth;G. McIlvenny;J. E. Enstone;A. M. Emmerson

  • Factors affecting failed localisation and false-negative rates of sentinel node biopsy in breast cancer--results of the ALMANAC validation phase.

    Amit Goyal;Robert G Newcombe;Alok Chhabra;Robert E Mansel

  • Effect of melatonin on jet lag after long haul flights.

    K. Petrie;J. V. Conaglen;L. Thompson;K. Chamberlain

  • Association between postpartum thyroid dysfunction and thyroid antibodies and depression.

    B. Harris;S. Othman;J. A. Davies;G. J. Weppner

  • Maternity blues and major endocrine changes: Cardiff puerperal mood and hormone study II

    B Harris;L Lovett;R G Newcombe;G F Read

Frequent Co-Authors

Martin Addy
Martin Addy University of Bristol
Robert E. Mansel
Robert E. Mansel Cardiff University
Glyn Elwyn
Glyn Elwyn Dartmouth Institute for Health Policy and Clinical Practice
William G. Wade
William G. Wade King's College London
Adrian Edwards
Adrian Edwards Cardiff University
Hilary Humphreys
Hilary Humphreys Royal College of Surgeons in Ireland
Richard Grol
Richard Grol Radboud University
Peter S. Harper
Peter S. Harper Cardiff University
Ronan A Lyons
Ronan A Lyons Swansea University
Fiona Wood
Fiona Wood Cardiff University

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