Paul E. O’Brien
Impact in
- Surgery top 0.05%
- Bariatric Surgery and Outcomes
- Gastroenterology top 0.5%
Papers in
- Surgery 139
- Bariatric Surgery and Outcomes 118
- Helicobacter pylori-related gastroenterology studies 8
- Pharmacology 28
- Inflammatory mediators and NSAID effects 26
- Co-authors
- John B. Dixon (68 shared papers)Wendy A. Brown (60 shared papers)Prithi S. Bhathal (8 shared papers)Stewart A. Skinner (21 shared papers)Maureen E. Dixon (14 shared papers)Leah Brennan (19 shared papers)Linda M. Schachter (13 shared papers)Susan L. Colles (6 shared papers)
- Journals
- Obesity Surgery (61 papers)Digestive Diseases and Sciences (12 papers)Gastroenterology (12 papers)Journal of Gastroenterology and Hepatology (11 papers)Obesity (8 papers)
- Partner nations
- AustraliaUnited StatesUnited Kingdom
In The Last Decade
Paul E. O’Brien
271 papers receiving 19.3k citations
Paul E. O’Brien's Hit Papers
Peers
Comparison fields: 5 of 160
- Surgery 9.8k
- Gastroenterology 604
- Epidemiology 2.7k
- Pharmacy 282
- Infectious Diseases 1.1k
Countries citing papers authored by Paul E. O’Brien
This map shows the geographic impact of Paul E. O’Brien's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Paul E. O’Brien with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Paul E. O’Brien more than expected).
Fields of papers citing papers by Paul E. O’Brien
This network shows the impact of papers produced by Paul E. O’Brien. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Paul E. O’Brien. The network helps show where Paul E. O’Brien may publish in the future.
Co-authors
The 25 scholars most cited alongside Paul E. O’Brien, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 275 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Nonalcoholic Fatty Liver Disease: Predictors of Nonalcoholic Steatohepatitis and Liver Fibrosis in the Severely Obese Hit paper breakdown → | 2001 | 1137 |
| 2 | Adjustable Gastric Banding and Conventional Therapy for Type 2 Diabetes Hit paper breakdown → | 2008 | 1131 |
| 3 | Nonalcoholic fatty liver disease: Improvement in liver histological analysis with weight loss Hit paper breakdown → | 2004 | 620 |
| 4 | 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 Hit paper breakdown → | 2018 | 585 |
| 5 | Pro-Inflammatory CD11c+CD206+ Adipose Tissue Macrophages Are Associated With Insulin Resistance in Human Obesity Hit paper breakdown → | 2010 | 532 |
| 6 | Long-Term Outcomes After Bariatric Surgery Hit paper breakdown → | 2012 | 417 |
| 7 | 2003 | 415 | |
| 8 | The association between sterilizing activity and drug distribution into tuberculosis lesions Hit paper breakdown → | 2015 | 400 |
| 9 | Changes in fat-free mass during significant weight loss: a systematic review Hit paper breakdown → | 2006 | 396 |
| 10 | 2006 | 387 | |
| 11 | Predictors of dropout in weight loss interventions: a systematic review of the literature Hit paper breakdown → | 2011 | 387 |
| 12 | 2006 | 371 | |
| 13 | 2008 | 330 | |
| 14 | 2005 | 320 | |
| 15 | 2002 | 319 | |
| 16 | 2010 | 289 | |
| 17 | 1999 | 279 | |
| 18 | 2007 | 268 | |
| 19 | 2002 | 260 | |
| 20 | 2006 | 245 |
About Paul E. O’Brien
Paul E. O’Brien is a scholar working on Surgery, Pharmacology, Gastroenterology, Infectious Diseases and Epidemiology, having authored 275 papers that have together received 20.6k indexed citations. Recurring topics across this work include Bariatric Surgery and Outcomes (118 papers), Inflammatory mediators and NSAID effects (26 papers), Tuberculosis Research and Epidemiology (17 papers), Gastrointestinal motility and disorders (9 papers), Gastroesophageal reflux and treatments (8 papers), Helicobacter pylori-related gastroenterology studies (8 papers), Liver Disease Diagnosis and Treatment (8 papers) and Adipokines, Inflammation, and Metabolic Diseases (8 papers). The work is most often cited by research in Surgery (9.8k citations), Gastroenterology (604 citations), Epidemiology (2.7k citations), Pharmacy (282 citations) and Infectious Diseases (1.1k citations). Paul E. O’Brien has collaborated with scholars based in Australia, United States and United Kingdom. Frequent co-authors include John B. Dixon, Wendy A. Brown, Prithi S. Bhathal, Stewart A. Skinner, Maureen E. Dixon, Leah Brennan, Linda M. Schachter, Susan L. Colles, Cheryl Laurie and Margaret Anderson. Their work appears in journals such as Obesity Surgery, Digestive Diseases and Sciences, Gastroenterology, Journal of Gastroenterology and Hepatology and Obesity.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.