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Systems10 1 Research Statistics

Scaled Brier

Last modified: 07 February 2023, 10:43:37 AM AEDT
Gems1 / 3
  • Modifies Brier using the maximum possible Brier score under a non-informative model
  • Also
    • Index of Prediction Accuracy
  • Analagous to R2 statistic
Interpretation2 / 3
  • Range of -infinity to 1
  • 1 = Indicates perfect prediction
  • 0 = Indicates non-informative performance
  • <0 = Indicates harmful model (being less informative than a trivial solution)
References3 / 3
  1. Kattan MW, Gerds TA. The index of prediction accuracy: an intuitive measure useful for evaluating risk prediction models. Diagn Progn Res. 2018;2:7. https://pubmed.ncbi.nlm.nih.gov/31093557/
  2. Luijken K, Wynants L, van Smeden M, Van Calster B, Steyerberg EW, Groenwold RHH, et al. Changing predictor measurement procedures affected the performance of prediction models in clinical examples. J Clin Epidemiol. 2020;119:7-18. https://pubmed.ncbi.nlm.nih.gov/31706963/
  3. Jaeger BC, Cantor R, Sthanam V, Xie R, Kirklin JK, Rudraraju R. Improving Outcome Predictions for Patients Receiving Mechanical Circulatory Support by Optimizing Imputation of Missing Values. Circ Cardiovasc Qual Outcomes. 2021;14(9):e007071. https://pubmed.ncbi.nlm.nih.gov/34517728/
  4. van Geloven N, Giardiello D, Bonneville EF, Teece L, Ramspek CL, van Smeden M, et al. Validation of prediction models in the presence of competing risks: a guide through modern methods. BMJ. 2022;377:e069249.
  5. Wong AI, Kamaleswaran R, Tabaie A, Reyna MA, Josef C, Robichaux C, et al. Prediction of Acute Respiratory Failure Requiring Advanced Respiratory Support in Advance of Interventions and Treatment: A Multivariable Prediction Model From Electronic Medical Record Data. Crit Care Explor. 2021;3(5):e0402.