Evidence map›Paper›PMID 26857105›Full record

ArticleBMJ open2016

Bibliometric analysis of the top-cited gastroenterology and hepatology articles.

Samy A Azer, Sarah Azer

Abstract read
In one paragraph

Article in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. The 100 Most-Cited and Influential Articles in Collegiate Athletics.Orthopaedic journal of sports medicine · 2022
    Article
  6. Article
  7. The 100 top-cited articles on scrub typhus: a bibliometric analysis.Osong public health and research perspectives · 2021
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. The 100 most-cited articles in Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2018
    Article
  13. Accuracy and Readability of Websites on Kidney and Bladder Cancers.Journal of cancer education : the official journal of the American Association for Cancer Education · 2018
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Samy A AzerDepartment of Medical Education and the Curriculum Development and Research Unit, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Sarah AzerAustin Hospital, University of Melbourne, Melbourne, Victoria, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo identify the top-cited articles in gastroenterology and hepatology, and analyse their characteristics.

methodsTwo searches were conducted in the Science Citation Index Expanded database; a search of 69 journals under the category 'Gastroenterology and Hepatology' (list A) and a keyword search of all journals (list B). The search results were analysed and the inter-rater coefficient of agreement between evaluators was measured using Cohen κ.

resultsThe number of citations varied from 1049 to 2959 in list A and from 1929 to 5500 in list B. In both lists, the majority of articles were research papers. No significant correlations were found between the number of citations and the number of years since publication (R(2)=0.00992, p=0.473 and R(2)=0.00202, p=0.757, respectively). However, the mean number of citations of papers published before the year 2000 was lower than those published after 2000 (36.70 ± 19.31 vs 106.03 ± 39.22). No correlation was found between number of authors and the number of citations (R(2)=0.04352, p=0.130), but strong correlations were found between the number of institutes involved or number of countries and the number of citations (R(2)=0.275, p<0.001 and R(2)=0.16181, p=0.003, respectively). Females were under-represented in authorship (45 vs 254, p=0.004). Only 21 papers (of 54) in list A were supported by grants. No correlation was found between number of grants received and the number of citations (R(2)=0.02573, p=0.247). The inter-rater agreement between evaluators had a Cohen κ coefficient 0.76-0.84.

conclusionsTop-cited articles were not only published in highly ranked journals specialising in Gastroenterology and Hepatology but also in 14 journals not specialised in this field. The number of citations correlated with the number of institutes and the number of countries involved but not with the number of grants received or the number of authors. Females were under-represented in the authorship.

Indexed as

BibliometricsGastroenterologyAuthorshipHumansJournal Impact FactorResearch DesignResearch Support as TopicMEDICAL EDUCATION & TRAINING

Identifiers

PMID26857105
PMCPMC4746458

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.