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. 2021 May 16;21:80. doi: 10.1186/s12894-021-00849-w

Fig. 2.

Fig. 2

Calibration plot of observed vs predicted rick of prostate cancer (PCa) and clinically significant prostate cancer (CSPCa) using machine-learning and logistic regression models in the validation cohort. a: PCa: Gleason score ≥ 3 + 3; b CSPCa: Gleason score ≥ 3 + 4. Abbreviations ANN artificial neural network, SVM support vector machine, CART classification and regression tree, RF random forest, LR logistic regression