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Learning‐based biomarker‐assisted rules for optimized clinical benefit under a risk constraint

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  • Yanqing Wang
  • Ying‐Qi Zhao
  • Yingye Zheng

Abstract

Novel biomarkers, in combination with currently available clinical information, have been sought to improve clinical decision making in many branches of medicine, including screening, surveillance, and prognosis. Statistical methods are needed to integrate such diverse information to develop targeted interventions that balance benefit and harm. In the specific setting of disease detection, we propose novel approaches to construct a multiple‐marker‐based decision rule by directly optimizing a benefit function, while controlling harm at a maximally tolerable level. These new approaches include plug‐in and direct‐optimization‐based algorithms, and they allow for the construction of both nonparametric and parametric rules. A study of asymptotic properties of the proposed estimators is provided. Simulation results demonstrate good clinical utilities for the resulting decision rules under various scenarios. The methods are applied to a biomarker study in prostate cancer surveillance.

Suggested Citation

  • Yanqing Wang & Ying‐Qi Zhao & Yingye Zheng, 2020. "Learning‐based biomarker‐assisted rules for optimized clinical benefit under a risk constraint," Biometrics, The International Biometric Society, vol. 76(3), pages 853-862, September.
    • Handle: RePEc:bla:biomet:v:76:y:2020:i:3:p:853-862
    DOI: 10.1111/biom.13199
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    References listed on IDEAS

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