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Comparative Study
. 2003:2003:797.

The Certainty-Agreement diagram: comparing the functionality of coding schemes in primary care clinical information systems

Philip J Brown  1 , Victoria Warmington
Affiliations
Comparative Study

The Certainty-Agreement diagram: comparing the functionality of coding schemes in primary care clinical information systems

Philip J Brown et al. AMIA Annu Symp Proc. 2003.

Abstract

Despite enormous investment of effort and resources there are few formal comparative evaluations between different coding schemes. We have recently described a methodology of a randomised crossover trial comparing the performance of Clinical Terms Version 3 (CTV3) and Read Codes 5 Byte set (RC5B) coding schemes in General Practice. 1 This study looked at the comparative performance of the two coding schemes by 10 general practitioners using a total of 995 concepts extracted from clinical records. This paper describes the use of the Certainty-Agreement diagram in providing a graphical representation of comparative functionality.

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Figures

Figure 1
Figure 1
Certainty-Agreement Diagram ,
Figure 2
Figure 2
Certainty (Proportion exact) -Agreement Diagram of coding between matched doctors using CTV3 & RC5B
See this image and copyright information in PMC

References

    1. Brown PJB, Warmington V, Laurence M, Provost AT. Randomised crossover trial comparing the performance of Clinical Terms Version 3 and Read Codes 5 Byte set coding schemes in General Practice. BMJ 2003 (accepted for publication). - PMC - PubMed
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