Using Critical Success Index or Gilbert Skill score as composite measures of positive predictive value and sensitivity in diagnostic accuracy studies: weather forecasting informing epilepsy research

Gashirai K Mbizvo, Kyle H. Bennett, Colin R. Simpson, Susan E. Duncan, Richard F. M. Chin, Andrew J. Larner

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The Critical Success Index (CSI) and Gilbert Skill score (GS) are verification measures that are commonly used to check the accuracy of weather forecasting. In this article, we propose that they can also be used to simplify the joint interpretation of positive predictive value (PPV) and sensitivity estimates across diagnostic accuracy studies of epilepsy data. This is because CSI and GS each provide a single measure that takes the weather forecasting equivalent of PPV and sensitivity into account. We have re-analysed data from our recent systematic review of diagnostic accuracy studies of administrative epilepsy data using CSI and GS. We summarise the results and benefits of this approach.

Original languageEnglish
Pages (from-to)1466-1468
JournalEpilepsia
Volume64
Early online date8 Feb 2023
DOIs
Publication statusPublished - Jun 2023

Keywords / Materials (for Non-textual outputs)

  • diagnostic test accuracy
  • ratio of verification
  • routine data
  • systematic review
  • threat score
  • validation studies

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