Evidence map›Paper›PMID 12236280›Full record

ReviewThe British journal of general practice : the journal of the Royal College of General Practitioners2002

Randomised controlled trials in primary care: scope and application.

Aziz Sheikh, Liam Smeeth, Richard Ashcroft

Abstract readReview
In one paragraph

Review in The British journal of general practice : the journal of the Royal College of General Practitioners, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

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

  1. House dust mite avoidance measures for perennial allergic rhinitis: a systematic review of efficacy.The British journal of general practice : the journal of the Royal College of General Practitioners · 2003
    Pooled it
  2. Trial
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  9. Review
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  12. The case study approach.BMC medical research methodology · 2011
    Review
  13. Review
  14. A survey of statistics in three UK general practice journal.BMC medical research methodology · 2004
    Article
  15. Review
  16. 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

3 authors.

Aziz SheikhDepartment of Primary Health Care and General Practice, Imperial College School of Science, Technology and Medicine, London. aziz.sheikh@ic.ac.uk
Liam Smeeth
Richard Ashcroft

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is now widespread acknowledgement of the absence of a sound evidence base underpinning many of the decisions made in primary care. Randomised controlled trials represent the methodology of choicefor determining efficacy and effectiveness of interventions, yet researchers working in primary care have been reluctant to use intervention studies, favouring observational study designs. Unfamiliarity with the different trial designs now available, and the relative advantages and disadvantages conferred by each, may be one factor contributing to this paradox. In this paper, we consider the principal trial designs available to primary care researchers, discussing the contexts in which a particular design may prove most useful. This information will, we hope, also prove useful to primary care clinicians attempting to interpret trial findings.

Indexed as

Primary Health CareBiasCluster AnalysisCross-Over StudiesHealth Services ResearchHumansOutcome Assessment, Health CarePatient SatisfactionRandomized Controlled Trials as Topic

Identifiers

PMID12236280
PMCPMC1314417

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.