Evidence map›Paper›PMID 12763986›Full record

Trial reportBMJ (Clinical research ed.)2003

Randomised crossover trial comparing the performance of Clinical Terms Version 3 and Read Codes 5 byte set coding schemes in general practice.

Philip J B Brown, Victoria Warmington, Michael Laurence, A Toby Prevost

Abstract readClinical TrialMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in BMJ (Clinical research ed.), 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Why clinical information standards matter.BMJ (Clinical research ed.) · 2003
    Article
  9. Article
  10. Variation of SNOMED CT coding of clinical research concepts among coding experts.Journal of the American Medical Informatics Association : JAMIA
    Article
  11. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Philip J B BrownSchool of Information Systems, University of East Anglia, Norwich NR4 7TJ. Pjbb@hicomm.demon.co.uk
Victoria Warmington
Michael Laurence
A Toby Prevost

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine whether Clinical Terms Version 3 provides greater accuracy and consistency in coding electronic patient records than the Read Codes 5 byte set.

designRandomised crossover trial. Clinicians coded patient records using both schemes after being randomised in pairs to use one scheme before the other.

setting10 general practices in urban, suburban, and rural environments in Norfolk.

participants10 general practitioners. SOURCE OF DATA: Concepts were collected from records of 100 patient encounters.

main outcome measuresPercentage of coded choices ranked as being exact representations of the original terms; percentage of cases where coding choice of paired general practitioners was identical; length of time taken to find a code.

resultsA total of 995 unique concepts were collected. Exact matches were more common with Clinical Terms (70% (95% confidence interval 67% to 73%)) than with Read Codes (50% (47% to 53%)) (P < 0.001), and this difference was significant for each of the 10 participants individually. The pooled proportion with exact and identical matches by paired participants was greater for Clinical Terms (0.58 (0.55 to 0.61)) than Read Codes (0.36 (0.33 to 0.39)) (P < 0.001). The time taken to code with Clinical Terms (30 seconds per term) was not significantly longer than that for Read Codes.

conclusionsClinical Terms Version 3 performed significantly better than Read Codes 5 byte set in capturing the meaning of concepts. These findings suggest that improved coding accuracy in primary care electronic patient records can be achieved with the use of such a clinical terminology.

Indexed as

ClassificationFamily PracticeAdultCross-Over StudiesFemaleHumansMaleMedical Records Systems, ComputerizedMiddle AgedRural HealthSensitivity and SpecificitySuburban Health

Identifiers

PMID12763986
PMCPMC156010

What OpenQuestion holds

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Registered trials

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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.