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American Journal of Gastroenterology
H-index 62

American Journal of Gastroenterology

0002-9270

Published by: Wolters Kluwer Health

https://journals.lww.com/ajg/pages/default.aspx

Ranking & Metrics

Discipline name Position Best Scientists Publications D-Index
Medicine 142 805 2521 61

Additional Metrics

Number of Best Scientists*: 1258
Documents by Best Scientists*: 3199
Top 100 Ranked Scientists*: 36
SCIMAGO H-index: 296
SCIMAGO SJR: 2.344
Impact Factor: 7.6

Overview

Top Research Topics at The American Journal of Gastroenterology?

The topics of Internal medicine, Gastroenterology, Surgery, Radiology and Pathology are the focal point of discussions in The American Journal of Gastroenterology. The journal blends together research topics in Internal medicine and In patient. The research on Gastroenterology discussed in The American Journal of Gastroenterology draws on the closely related field of Esophagus.

The majority of Surgery studies presented zero in on Complication.

  • Internal medicine (39.03%)
  • Gastroenterology (28.68%)
  • Surgery (14.49%)

What are the most cited papers published in the journal?

  • Nonalcoholic steatohepatitis: a proposal for grading and staging the histological lesions (3019 citations)
  • The Montreal Definition and Classification of Gastroesophageal Reflux Disease: A Global Evidence-Based Consensus (2637 citations)
  • Updated guidelines 2008 for the diagnosis, surveillance and therapy of Barrett's esophagus. (1910 citations)

Research areas of the most cited articles at The American Journal of Gastroenterology:

The journal articles mainly deal with areas of study such as Internal medicine, Gastroenterology, Surgery, Immunology and Pathology. While the primary focus in the journal papers is Gastroenterology, they also dissect topics surrounding Randomized controlled trial and Clinical trial as a whole. While Surgery is the key highlight in the published papers, thet also covered some subjects on Incidence (epidemiology) and Epidemiology.

What topics the last edition of the journal is best known for?

  • Internal medicine
  • Disease
  • Diabetes mellitus

The previous edition focused in particular on these issues:

The journal primarily focuses on research topics in Internal medicine, MEDLINE, Gastroenterology, Family medicine and Text mining. Confidence interval, Odds ratio, Cirrhosis, Cohort and Hazard ratio are some of the study areas of Internal medicine discussed. The journal links adjacent topics like Cirrhosis with Liver disease.

Some problems in MEDLINE that were presented in The American Journal of Gastroenterology overlapped with concepts under Coronavirus disease 2019 (COVID-19), Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Intensive care medicine, General surgery and 2019-20 coronavirus outbreak. The journal connects the study in Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with the closely related area of Virology. The journal features Family medicine research that overlaps with concepts in Continuing medical education.

The most cited articles from the last journal are:

  • ACG Clinical Guideline: Management of Irritable Bowel Syndrome. (53 citations)
  • Post-COVID-19 Cholangiopathy: A Novel Entity. (20 citations)
  • ACG Clinical Guidelines: Colorectal Cancer Screening 2021 (18 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

The top authors publishing in The American Journal of Gastroenterology (based on the number of publications) are:

  • William J. Sandborn (339 papers) published 1 paper at the last edition, 17 less than at the previous edition,
  • Nicholas J. Talley (295 papers) published 2 papers at the last edition the same number as at the previous edition,
  • Rocio Lopez (242 papers) absent at the last edition,
  • Marie L. Borum (225 papers) absent at the last edition,
  • Edward V. Loftus (213 papers) published 2 papers at the last edition, 7 less than at the previous edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Only papers with recognized affiliations are considered

The top affiliations publishing in The American Journal of Gastroenterology (based on the number of publications) are:

  • Mayo Clinic (969 papers) published 43 papers at the last edition, 12 more than at the previous edition,
  • Veterans Health Administration (386 papers) published 20 papers at the last edition, 4 more than at the previous edition,
  • University of Tokyo (359 papers) published 3 papers at the last edition,
  • Cleveland Clinic (359 papers) published 8 papers at the last edition, 9 less than at the previous edition,
  • University of Michigan (295 papers) published 20 papers at the last edition, 6 more than at the previous edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 15.73% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 22.61% were posted by at least one author from the top 10 institutions publishing in the journal. Another 8.71% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 14.52% of all publications and 54.15% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

  • Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
  • Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
  • Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
  • Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
  • Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.

Gastroenterology Education and Career Opportunities

For those interested in research topics covered by The American Journal of Gastroenterology and considering a career in the field, pursuing a quality education is the first essential step. Specific nursing programs, which incorporate a focus on gastroenterology, can offer the necessary knowledge and practical skills that are integral to this particular area of medicine. A list of the best online nursing programs in Oregon is available for anyone interested in studying this discipline. These programs create a conducive learning and research environment, providing all the necessary tools to undertake practical and theoretical explorations in gastroenterology, among other subjects. By enrolling in these programs, students will have the opportunity to understand diseases of the gastrointestinal tract and liver, learn about advanced diagnostic procedures, and understand the latest research in the field. Alongside expert physicians, nurses play a crucial role in preventive care, treatment, and rehabilitation processes concerning gastroenterological conditions. Moreover, professionals in the field also have an opportunity to contribute to the ongoing research discussed in The American Journal of Gastroenterology. In this way, they can have a direct impact on improving healthcare and creating new solutions for patients suffering from gastroenterological disorders. The research, strategy, and treatment discussions prevalent in journals like The American Journal of Gastroenterology can provide insightful resources for an enriched learning experience, and further propagate the development and proliferation of quality healthcare services and facilities.

Top Publications

  • Recommendations for Follow-Up After Colonoscopy and Polypectomy: A Consensus Update by the US Multi-Society Task Force on Colorectal Cancer.

    Samir Gupta;David Lieberman;Joseph C. Anderson;Carol A. Burke

    (2020)
    890 Citations
  • ACG Clinical Guideline: Diagnosis and Management of Idiosyncratic Drug-Induced Liver Injury.

    (2021)
    687 Citations
  • Digestive Symptoms in COVID-19 Patients With Mild Disease Severity: Clinical Presentation, Stool Viral RNA Testing, and Outcomes.

    Chaoqun Han;Caihan Duan;Shengyan Zhang;Brennan Spiegel

    (2020)
    639 Citations
  • ACG Clinical Guideline for the Diagnosis and Management of Gastroesophageal Reflux Disease.

    Philip O. Katz;Kerry B. Dunbar;Felice H. Schnoll-Sussman;Katarina B. Greer

    (2021)
    534 Citations
  • Endoscopic Removal of Colorectal Lesions: Recommendations by the US Multi-Society Task Force on Colorectal Cancer

    Tonya Kaltenbach;Joseph C. Anderson;Carol A. Burke;Jason A. Dominitz

    (2020)
    522 Citations
  • ACG Clinical Guideline: Management of Irritable Bowel Syndrome.

    Brian E. Lacy;Mark Pimentel;Darren M. Brenner;William D. Chey

    (2021)
    516 Citations
  • ACG Clinical Guidelines: Colorectal Cancer Screening 2021

    Aasma Shaukat;Charles J Kahi;Charles J Kahi;Carol A Burke;Linda Rabeneck

    (2021)
    496 Citations
  • ACG Clinical Guidelines: Achalasia.

    (2020)
    458 Citations
  • Diagnosis and Management of Barrett's Esophagus: An Updated ACG Guideline

    (2022)
    389 Citations
  • ACG Clinical Guideline: Upper Gastrointestinal and Ulcer Bleeding.

    Loren Laine;Alan N Barkun;John R Saltzman;Myriam Martel

    (2021)
    340 Citations

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Best Scientists Contributing to This Journal