Evidence map›Paper›PMID 7950620›Full record

ReviewBMJ (Clinical research ed.)1994

Reporting, updating, and correcting systematic reviews of the effects of health care.

I Chalmers, B Haynes

Abstract readReview
In one paragraph

Review in BMJ (Clinical research ed.), 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 6 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

31 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. When and how to update systematic reviews.The Cochrane database of systematic reviews · 2008
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Trial
  8. Review
  9. Article
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  11. Article
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  14. Article
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  17. Analysis of the reporting of search strategies in Cochrane systematic reviews.Journal of the Medical Library Association : JMLA · 2009
    Article
  18. Reply to "Ten simple rules for getting published".PLoS computational biology · 2007
    Article
  19. Application of evidence-based urology in improving quality of care.Indian journal of urology : IJU : journal of the Urological Society of India · 2007
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

I ChalmersUK Cochrane Centre, NHS R&D Programme, Oxford.
B Haynes

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The recent growth in the numbers of published systematic reviews reflects growing recognition of their importance for improving knowledge about the effects of health care. In Britain the NHS R&D Programme has established two centres to prepare systematic reviews of existing information, and the Cochrane Collaboration--an international network of individuals and institutions--evolved to produce systematic, periodically updated reviews of randomised controlled trials. The large amount of existing evidence that needs to be considered creates a problem for the reporting of systematic reviews: the need to ensure that methods and results of systematic reviews are adequately described has to be reconciled with the limited space available in printed journals. A possible solution is the use of electronic publications: reviews could be published simultaneously in a short, printed form and in a more detailed electronic form. Electronic publications also have the advantage of the ease with which reviews may be updated as new evidence becomes available or mistakes are identified.

Indexed as

Review Literature as TopicHealth Services ResearchInformation SystemsPublishingResearch

Identifiers

PMID7950620
PMCPMC2541052

What OpenQuestion holds

Textmetadata
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.