Evidence map›Paper›PMID 33060081›Full record

ArticleBMJ open2020

Publication bias in pediatric emergence delirium: a cross-sectional analysis of ClinicalTrials.gov and ClinicalTrialsRegister.eu.

Jochen Meyburg, Markus Ries

Abstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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

  1. Time to publication for results of clinical trials.The Cochrane database of systematic reviews · 2024
    Pooled it
  2. Article
  3. 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.

Jochen MeyburgDepartment of General Pediatrics and Pediatric Intensive Care, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany.
Markus RiesDepartment of Pediatric Neurology and Metabolic Medicine, Center for Pediatric and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany markus.ries@uni-heidelberg.de.ORCID 0000-0002-5054-5741

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesEmergence delirium (ED) is a frequent and potentially serious complication of general anaesthesia in children. Although there are various treatment strategies, no general management recommendations can be made. Selective reporting of study results may impair clinical decision-making. We, therefore, analysed whether the results of completed registered clinical studies in patients with paediatric ED are publicly available or remain unpublished.

designCross-sectional analysis.

settingClinicalTrials.gov and ClinicalTrialsRegister.eu. PARTICIPANTS AND OUTCOME MEASURES: We determined the proportion of published and unpublished studies registered at ClinicalTrials.gov and ClinicalTrialsRegister.eu that were marked as completed by 1st September 2018. The major trial and literature databases were used to search for publications. In addition, the study investigators were contacted directly. For published trials, time to publication was calculated as the difference in months between study completion date and publication date.

resultsOf the 44 registered studies on paediatric ED, only 24 (54%) were published by September 2019. Published trials contained data from n=2556 patients, whereas n=1644 patients were enrolled in unpublished trials. Median time to publication was 19 months. Studies completed in recent years were published faster, but still only 9 of 24 trials were published within 12 months of completion.

conclusionThere is a distinct publication gap in clinical research in paediatric ED that may have an impact on meta-analyses and clinical practice.

Indexed as

Clinical Trials as TopicEmergence DeliriumRegistriesChildClinical Decision-MakingCross-Sectional StudiesDatabases, FactualHumansPublication Biasmedical ethicspaediatric anaesthesiapaediatric intensive & critical carequality in health care

Identifiers

PMID33060081
PMCPMC7566730

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.