Evidence map›Paper›PMID 16850289›Full record

ArticleDer Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen2006

[Randomized and nonrandomized controlled clinical trials in a German surgical journal].

M K Diener, A Blümle, V Szakallas, G Antes, C M Seiler

Abstract readComparative StudyEnglish Abstract
PubMed Publisher
In one paragraph

Article in Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–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

8 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Limits to clinical trials in surgical areas.Clinics (Sao Paulo, Brazil) · 2011
    Review
  5. [Randomized controlled and controlled clinical trials in German-language ophthalmological journals].Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft · 2008
    Article
  6. Article
  7. Article
  8. [Systematic reviews and meta-analyses in surgery].Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen · 2007
    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

5 authors.

M K DienerDeutsches Cochrane Zentrumsklinikum, Institut für Medizinische Biometrie und Medizinische Informatik, Universitätsklinikum Freiburg.
A Blümle
V Szakallas
G Antes
C M Seiler

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundComprehensive identification of relevant literature is mandatory for valid assessment of the effectiveness of surgical interventions. Thus, electronic database searches are often complemented by handsearching of relevant surgical journals. The aim of this study was to assess the quantity and quality of randomized controlled (RCTs) and controlled clinical trials (CCTs) in the German surgical journal Der Chirurg.

methodsQuantitative and qualitative assessment was made after handsearching of studies published from 1948 to 2005 in Der Chirurg. Systematic database search (MEDLINE) was used for comparison of RCTs published in Der Chirurg and international surgical journals.

resultsOverall, 112 controlled clinical trials (90 RCTs, 22 CCTs) were identified by handsearching. The implementation of sample size calculation was reported in 12 of 90 (13%) RCTs. Forty-six (51%) did not specify the randomization process, and five (6%) incorporated the "intention to treat" principle in their analyses. After 2000, RCTs were published in declining frequency in Der Chirurg, whereas international surgical journals printed stable quantities of these studies.

conclusionImproving the prerequisites of patient-centered clinical research in surgery, rigorous implementation of principles of the CONSORT statement, and modified publication strategies may improve the quality and quantity of reports on clinical studies in Germany.

Indexed as

Controlled Clinical Trials as TopicCross-Cultural ComparisonDatabases, BibliographicData Interpretation, StatisticalEuropeGeneral SurgeryGermanyHumansMEDLINEPeriodicals as TopicPublishingRandomized Controlled Trials as TopicTreatment Outcome

Identifiers

PMID16850289

What OpenQuestion holds

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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.