Evidence map›Paper›PMID 25849641›Full record

SynthesisPloS one2015

Research trends in evidence-based medicine: a joinpoint regression analysis of more than 50 years of publication data.

Bui The Hung, Nguyen Phuoc Long, Le Phi Hung, Nguyen Thien Luan, Nguyen Hoang Anh, Tran Diem Nghi, Mai Van Hieu, Nguyen Thi Huyen Trang, Herizo Fabien Rafidinarivo, Nguyen Ky Anh and 3 more

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.1field-weighted citation impact, top 5% of its field
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

28 citing papers in PubMed, 51 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Endoscopic spine surgery: a bibliometric and citation analysis of the most influential articles and authors across 19 spine journals (1976-2025).European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Marginal health care expenditures for melanoma care in the United States.Journal of managed care & specialty pharmacy · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

13 authors at 4 institutions in 4 countries.

Bui The HungUniversity of Medicine and Pharmacy, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam; Online Research Club, http://onlineresearchclub.org.
Nguyen Phuoc LongUniversity of Medicine and Pharmacy, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam; Online Research Club, http://onlineresearchclub.org.
Le Phi HungUniversity of Medicine and Pharmacy, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam; Online Research Club, http://onlineresearchclub.org.
Nguyen Thien LuanUniversity of Medicine and Pharmacy, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam; Online Research Club, http://onlineresearchclub.org.
Nguyen Hoang AnhOnline Research Club, http://onlineresearchclub.org; School of Medicine, Vietnam National University, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam.
Tran Diem NghiOnline Research Club, http://onlineresearchclub.org; School of Medicine, Vietnam National University, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam.
Mai Van HieuOnline Research Club, http://onlineresearchclub.org; School of Medicine, Vietnam National University, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam.
Nguyen Thi Huyen TrangOnline Research Club, http://onlineresearchclub.org; University of Medicine and Pharmacy at Hue City, Hue, 53000, Vietnam.
Herizo Fabien RafidinarivoOnline Research Club, http://onlineresearchclub.org; Nagasaki University Graduate School of Pharmaceutical Sciences, Nagasaki, 852-8523, Japan.
Nguyen Ky AnhUniversity of Medicine and Pharmacy, Ho Chi Minh City, Ho Chi Minh, 70000, Vietnam; Online Research Club, http://onlineresearchclub.org.
David HawkesOnline Research Club, http://onlineresearchclub.org; The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
Nguyen Tien HuyOnline Research Club, http://onlineresearchclub.org; Department of Clinical Product Development, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
Kenji HirayamaDepartment of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
Online Technologies (United States) · USHo Chi Minh City Medicine and Pharmacy University · VNNagasaki University · JPFlorey Institute of Neuroscience and Mental Health · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEvidence-based medicine (EBM) has developed as the dominant paradigm of assessment of evidence that is used in clinical practice. Since its development, EBM has been applied to integrate the best available research into diagnosis and treatment with the purpose of improving patient care. In the EBM era, a hierarchy of evidence has been proposed, including various types of research methods, such as meta-analysis (MA), systematic review (SRV), randomized controlled trial (RCT), case report (CR), practice guideline (PGL), and so on. Although there are numerous studies examining the impact and importance of specific cases of EBM in clinical practice, there is a lack of research quantitatively measuring publication trends in the growth and development of EBM. Therefore, a bibliometric analysis was constructed to determine the scientific productivity of EBM research over decades.

methodsNCBI PubMed database was used to search, retrieve and classify publications according to research method and year of publication. Joinpoint regression analysis was undertaken to analyze trends in research productivity and the prevalence of individual research methods.

findingsAnalysis indicates that MA and SRV, which are classified as the highest ranking of evidence in the EBM, accounted for a relatively small but auspicious number of publications. For most research methods, the annual percent change (APC) indicates a consistent increase in publication frequency. MA, SRV and RCT show the highest rate of publication growth in the past twenty years. Only controlled clinical trials (CCT) shows a non-significant reduction in publications over the past ten years.

conclusionsHigher quality research methods, such as MA, SRV and RCT, are showing continuous publication growth, which suggests an acknowledgement of the value of these methods. This study provides the first quantitative assessment of research method publication trends in EBM.

Indexed as

Biomedical ResearchEvidence-Based MedicineHumans

Identifiers

PMID25849641
PMCPMC4388379
OpenAlexW2094546013

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.