Factors effecting the model performance measures area under the ROC curve, net reclassification improvement and integrated discrimination improvement


Karaismailoglu E., Konar N. M. , GÖKSÜLÜK D. , KARAAĞAOĞLU A. E.

COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION, vol.48, no.9, pp.2586-2598, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 9
  • Publication Date: 2019
  • Doi Number: 10.1080/03610918.2018.1458135
  • Title of Journal : COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION
  • Page Numbers: pp.2586-2598

Abstract

The aim of this study is to investigate the impact of correlation structure, prevalence and effect size on the risk prediction model by using the change in the area under the receiver operating characteristic curve (Delta AUC), net reclassification improvement (NRI), and integrated discrimination improvement (IDI). In simulation study, the dataset is generated under different correlation structures, prevalences and effect sizes. We verify the simulation results with the real-data application. In conclusion, the correlation structure between the variables should be taken into account while composing a multivariable model. Negative correlation structure between independent variables is more beneficial while constructing a model.