Department of Mathematics
Selection and combination of biomarkers using ROC method for disease classification and prediction
Based on the SCAD penalty and the area under the ROC curve (AUC), we propose a new method for selecting and combining biomarkers for disease classification and prediction. The proposed estimator for the combination of the biomarkers has an oracle property; that is, the estimated combination of the biomarkers performs as well as it would have been if the biomarkers significantly associated with the outcome had been known in advance, in terms of discriminative power. The proposed estimator is computationally feasible, n1/2-consistent and asymptotically normal. Simulation studies show that the proposed method performs better than existing methods. We illustrate the proposed methodology in the acoustic startle response study.© 2011 Statistical Society of Canada.
Generalized linear model, ROC curve, SCAD penalty, Selection and combination of biomarker
Source Publication Title
Canadian Journal of Statistics
Lin, Huazhen, Ling Zhou, Heng Peng, and Xiao-Hua Zhou. "Selection and combination of biomarkers using ROC method for disease classification and prediction." Canadian Journal of Statistics 39.2 (2011): 324-343.