World's Best Scientists 2026 revealed!
Paul E. O'Brien

Paul E. O'Brien

D-Index & Metrics

Medicine

D-Index
89
Citations
31435
World Ranking
12623
National Ranking
409

Paul E. O'Brien 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 Paul E. O'Brien 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: 307 publications — 18th percentile

18% of scientists in this discipline score the same or lower.

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

Paul E. O'Brien 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 Paul E. O'Brien 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: 89 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

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

Overview

Paul E. O'Brien is affiliated with Monash University in Australia and specializes in research primarily within the field of Medicine. Their work spans multiple subfields including Infectious Diseases, Surgery, Molecular Biology, Ecology, and Epidemiology.

The scientist's research focuses on several main topics:

  • SARS-CoV-2 and COVID-19 Research
  • Bacteriophages and microbial interactions
  • Tuberculosis Research and Epidemiology
  • Bariatric Surgery and Outcomes
  • Obesity and Health Practices
  • Vaccines and immunoinformatics approaches
  • Mycobacterium research and diagnosis

Frequent publication venues for their work include:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Annals of Oncology
  • Proceedings of the National Academy of Sciences
  • European Journal of Immunology
  • Obesity Surgery

Paul E. O'Brien has contributed to a number of research papers, notable publications include:

  • Design and proof of concept for targeted phage-based COVID-19 vaccination strategies with a streamlined cold-free supply chain, 2021, Proceedings of the National Academy of Sciences
  • Inoculum size and traits of the infecting clinical strain define the protection level against Mycobacterium tuberculosis infection in a rabbit model, 2020, European Journal of Immunology
  • Pre-operative Restraint and Post-operative Hunger, Disinhibition and Emotional Eating Predict Weight Loss at 2 Years Post-laparoscopic Adjustable Gastric Banding, 2020, Obesity Surgery
  • Phase II Trial of CDX-3379 and Cetuximab in Recurrent/Metastatic, HPV-Negative, Cetuximab-Resistant Head and Neck Cancer, 2022, Cancers
  • Long-term impact of weight loss for people with overweight but not obesity, and with type 2 diabetes: 10-year outcomes of a randomized trial of gastric band surgery, 2023, Diabetes Obesity and Metabolism

The scientist has collaborated frequently with a set of co-authors including Daniela I. Staquicini, Fenny H. F. Tang, Christopher Markosian, Virginia J. Yao, and Fernanda I. Staquicini. Each of these individuals has worked alongside Paul E. O'Brien on multiple occasions.

Best Publications

  • Adjustable gastric banding and conventional therapy for type 2 diabetes: A randomized controlled trial

    John B. Dixon;Paul E. O'Brien;Julie Playfair;Leon Chapman

  • Nonalcoholic Fatty Liver Disease: Predictors of Nonalcoholic Steatohepatitis and Liver Fibrosis in the Severely Obese

    John B. Dixon;Prithi S. Bhathal;Paul E. O'Brien

  • Nonalcoholic fatty liver disease: Improvement in liver histological analysis with weight loss.

    John B. Dixon;Prithi S. Bhathal;Norman R. Hughes;Paul E. O'Brien

  • Depression in association with severe obesity: changes with weight loss.

    John B Dixon;Maureen Elizabeth Dixon;Paul E O'Brien

  • Laparoscopic adjustable gastric banding in the treatment of obesity: a systematic literature review.

    Andrew E Chapman;George Kiroff;Philip Game;Bruce Foster

  • Pro-Inflammatory CD11c+CD206+ Adipose Tissue Macrophages Are Associated With Insulin Resistance in Human Obesity

    John M Wentworth;Gaetano Naselli;Wendy A Brown;Lisa Doyle

  • Long-Term Outcomes After Bariatric Surgery: a Systematic Review and Meta-analysis of Weight Loss at 10 or More Years for All Bariatric Procedures and a Single-Centre Review of 20-Year Outcomes After Adjustable Gastric Banding

    Paul E. O'Brien;Annemarie Hindle;Leah Brennan;Stewart Skinner

  • Treatment of Mild to Moderate Obesity with Laparoscopic Adjustable Gastric Banding or an Intensive Medical Program: A Randomized Trial

    Paul Edmond O'Brien;John B Dixon;Cheryl F Laurie;Stewart Andrew Skinner

  • Long-term outcomes after bariatric surgery: fifteen-year follow-up of adjustable gastric banding and a systematic review of the bariatric surgical literature.

    Paul Edmond O'Brien;Leah Macdonald;Margaret Louise Anderson;Leah Brennan

  • Systematic review of medium-term weight loss after bariatric operations.

    Paul Edmond O'Brien;Tracey Therese McPhail;Timothy Bede Chaston;John Dixon

  • Predictors of dropout in weight loss interventions: A systematic review of the literature

    Irina Moroshko;Leah Brennan;Paul Edmond O'Brien

  • Preoxygenation Is More Effective in the 25° Head-up Position Than in the Supine Position in Severely Obese Patients

    Benjamin J Dixon;John B Dixon;Jennifer R Carden;Anthony J Burn

  • Changes in fat-free mass during significant weight loss: a systematic review

    Timothy Bede Chaston;John Dixon;Paul Edmond O'Brien

  • Grazing and Loss of Control Related to Eating: Two High‐risk Factors Following Bariatric Surgery

    Susan Leigh Colles;John Bernard Dixon;Paul Edmond O'Brien

  • The laparoscopic adjustable gastric band (Lap-Band): a prospective study of medium-term effects on weight, health and quality of life.

    Paul Edmond O'Brien;John Dixon;Wendy Ann Brown;Linda M Schachter

  • Prospective study of a laparoscopically placed, adjustable gastric band in the treatment of morbid obesity.

    Paul E O'Brien;Wendy A Brown;A Smith;Paul J McMurrick

  • Laparoscopic adjustable gastric banding in severely obese adolescents: a randomized trial.

    Paul Edmond O'Brien;Susan M Sawyer;Cheryl Laurie;Wendy Ann Brown

  • Preoperative weight loss with a very-low-energy diet: quantitation of changes in liver and abdominal fat by serial imaging

    Susan Colles;John Dixon;Paul Marks;Boyd Josef Gimnicher Strauss

  • Gastric surgery for morbid obesity. The Adelaide Study.

    J C Hall;J M Watts;P E O'Brien;R E Dunstan

  • Night eating syndrome and nocturnal snacking: association with obesity, binge eating and psychological distress

    Susan Colles;John Dixon;Paul Edmond O'Brien

Frequent Co-Authors

Leah Brennan
Leah Brennan Australian Catholic University
David Cameron-Smith
David Cameron-Smith Agency for Science, Technology and Research
Bruce E. Kemp
Bruce E. Kemp Australian Catholic University
Matthew E. Ritchie
Matthew E. Ritchie Walter and Eliza Hall Institute of Medical Research
Gordon K. Smyth
Gordon K. Smyth Walter and Eliza Hall Institute of Medical Research
Matthew J. Watt
Matthew J. Watt University of Melbourne
Michael Bailey
Michael Bailey Monash University
Leonard C. Harrison
Leonard C. Harrison University of Melbourne
John J McNeil
John J McNeil Monash University
Gregory R. Steinberg
Gregory R. Steinberg McMaster University

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