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Table 5 AUCs for the test results and external validation of the single-center, single-vendor model and the multi-center, multi-vendor model

From: Single-center versus multi-center biparametric MRI radiomics approach for clinically significant peripheral zone prostate cancer

  Single-center, single-vendor model Multi-center, multi-vendor model p value
Single-center validation (AUC) 0.82 (95% CI 0.71–0.92) 0.66 (95% CI 0.56–0.75) 0.03
Multi-center validation (AUC) 0.59 (95% CI 0.51–0.68) 0.75 (95% CI 0.64–0.84) 0.012
Percentage change − 27.2% − 12% x
p value 0.002 0.114  
  1. Percentage change refers to the change in performance for the development validation and external validation. For the single-center model, this means the change from single-center validation to multi-center validation, and for the multi-center model this mean the change from multi-center validation to single-center validation